小学数学Grade 4 (第一学期)测试
小学数学二年级上册三 数一数与乘法《儿童乐园》
T:除了2×4（4×2），我们还可以怎样写这个乘法算式？ 每个数表示什么意思？
T：大家观察一下乘法算式和加法算式之间有什么关系？
T：非常棒，对于相同加数连加的算式我们就可以用乘法来计算。我们的乘法算式和加法算式都是一样的，他们每部分都有自己的名字，这个符号叫乘号，乘号前面的数叫乘数，乘号后面的数也叫乘数，8叫做积。
S：2+2+2+2=8人 （请你告诉大家这里的2表示什么意思呢？为什么写了4个？）（回到情境中看着图说，孩子们可能记不住图片）
S:都是2
S:4个
S:2×4＝8
（4×2＝8）（回到情境中）
S:2表示每架飞机坐2个人，4表示有4架飞机，8表示一共有8人。（再请一个孩子完整的说一遍，全班再说一遍。）
S：4×2，4表示有4架飞机，2表示每架飞机有2个人。（回到情境中）
咱们一起来读一读这个乘法算式。
T:我们再一起来看看小火车的算式，你能分别用加法算式和乘法算式表示吗？
T：乘船的人数呢？
T：坐在板凳上的人呢？
T:看到这些算式，你有什么感受？
如果是你，你会选择哪种算法？
T:很有自己的想法，那么今天这节课你们学到了什么呢？
T:今天我们通过《儿童乐园》的场景初步认识了乘法的意义，接下来我们就一起来实践一下吧，请同学们观察一下这幅图片，书p19.（1）你能完整的说出你观察到的数学信息吗？
S：加法算式中的各部分在乘法算式中分别代表什么？最后得出结论每个数代表的含义一样。
S:读一遍（回到算式中指读，不仅仅是记名字）
S:4×6＝24人
或者
6×4＝24人
4+4+4+4+4+4=2人
新仁爱版2024--2025学年度第一学期七年级英语期末测试卷及答案
…○………………内………………○………………装………………○………………订………………○………………线………………○…………………○………………外………………○………………装………………○………………订………………○………………线………………○………………… 学校：______________姓名：_____________班级：_______________考号：______________________新仁爱版2024--2025学年度第一学期期末测试卷七年级 英语本试卷总分150分，考试时间120分钟。
题号 Ⅰ Ⅱ Ⅲ Ⅳ V Ⅵ Ⅶ VIII总分 得分I .听力部分 （共三大题，每小题1.5分，满分30分）第一节 听句子 从所给图中选出与所听到的句子情景相同（相近）的图画 （句子读两遍，每小题1.5分，满分7.5分） 一、听力选择 1． A ．B ．C ．2． A ．B ．C ．3． A ．B ．C ．4．A ．B ．C ．5． A ．B ．C ．第二节 听对话 根据所听到的内容，选择正确的答案 （对话读两遍，每小题1.5分，满分15分）听下面7段对话，每段对话后有一个小题，从题中所给的A 、B 、C 三个选项中，选出最佳答案。
6．Whose schoolbag is it? A ．Bill’s.B ．Mike’s.C ．Betty’s.7．What color of the cap does the man want? A ．Yellow.B ．Blue.C ．Black.8．What does Jane’s sister look like? A ．Small eyes and short hair. B ．Big eyes and long hair. C ．Big eyes and short hair. 9．What does the man want to have? A ．Some rice.B ．Some fish.C ．Some vegetables.听1段对话，回答以下小题。
学生优秀试卷展评活动内容
学生优秀试卷展评活动内容一、优秀试卷展评活动的意义：根据学校工作安排，受教导处委托，结合本次期中技能竞赛试卷的答题情况，小学数学教研组、语文教研组联合组织开展本次优秀试卷展评活动。
俗话说：书如其人。
对于书写的重要性，苏霍姆林斯基说：阅读和书写是学生的两种最很必要的学习工具，同时也是通往周围世界的两个窗口。
学生如果没有流利、快速、准确的书写的技能，他就像半盲目的人一样。
书写是学生基本素质的重要体现，形成规范科学的答题习惯是提升学生解题能力的必要基础，也是提高非智力因素得分的重要手段。
从这两次考试来看，答题不规范的现象还普遍存在，如果不改变这种状况，势必对考试成绩造成严重影响，因此，我们全体师生要进一步提高思想认识、加大训练指导的措施，切实把规范学生答题作为提高成绩的增长点来抓。
二、学生作业书写的要求（一）作业格式及要求：1、作业封面。
学生要按照封面上规定的内容进行填写，全班形式一致。
字的大小间隔应安排匀称、科学、合理。
字要写得正确、整齐、横平竖直、字字分明。
一、二、三年级学生的作业封面由教师填写。
四年级以上由本人填写。
保持封面、封底整洁、干净。
2、作业本内的使用。
方格练习本：一格一字，字要写在方格中央。
标点符号占一格（省略号、破折号占两格），并写在方格的左下角（若遇到行尾有标点符号，就写在行尾方格旁边）。
横格练习本：书写字体要占大半横格，上空下平，整齐美观。
3、作业要四面留边。
每一页上下利用现成的边；左边都要用铅笔从上到下打竖直线，留宽度为半厘米的边儿；右边不能写到头，留半厘米左右的空白。
课题要写在正中。
4、作业题目的大标题序次一、二、三、四等要对齐，均写在竖直线的左边，题目要求写在后面横格里，第一个字离左面序号是一个字的距离，其间可点顿号，末尾点句号。
大标题下面的小标题用“1、2、3、4”表示，序号上下也要对齐，写的部位在大标题题目要求第一个字的下面，后边再留出一个字距离写作业内容。
如果这类题中还要分小题，那么就用序次“⑴、⑵、⑶、⑷”来表示，同类序次同样要对齐。
二年级数学下册《平均分的认识(一)》教案
二年级数学下册《平均分的认识（一）》教案Second grade mathematics volume II "unders tanding of average score (1)" teaching plan二年级数学下册《平均分的认识（一）》教案前言：小泰温馨提醒，数学是研究数量、结构、变化、空间以及信息等概念的一门学科，从某种角度看属于形式科学的一种，在人类历史发展和社会生活中，数学发挥着不可替代的作用，是学习和研究现代科学技术必不可少的基本工具。
本教案根据数学课程标准的要求和针对教学对象是小学生群体的特点，将教学诸要素有序安排，确定合适的教学方案的设想和计划、并以启迪发展学生智力为根本目的。
便于学习和使用，本文下载后内容可随意修改调整及打印。
教学内容：教科书第12～14页例1、例2，练习三的第1～3题。
教学目标：1．使学生建立“平均分”的概念，知道平均分就是每一份分得结果同样多。
2．通过分一分活动，培养学生动手操作能力和概括能力。
教具、学具准备：教科书准备春游食品情境放大图或课件；按例1内容，让学生准备实物卡片，准备10张正方形卡片、15个○卡片、20根小棒。
教学过程设计：一、准备1．出示准备春游食品的情境图。
以小精灵聪聪的身份说二（1）班明天要去春游。
小朋友正忙着准备春游食品呢！我们来看一看，他们都准备了哪些食品。
2．让学生观察画面，并请学生说一说了解到的情况。
二、新课1．教学例1，引入“平均分”。
师：我们来帮助二（1）班小朋友准备春游食品好吗？！请各组为二（1）班的5位小朋友分配春游食品。
（1）讨论分配方案。
突出每种食品“应该每份同样多”。
（2）动手分一分。
分好后，请各组推代表展示分配结果。
（3）让学生观察各组为二（1）班小朋友准备的春游食品，发现：每份中的各种食品同样多。
说明：每份分得同样多，叫平均分。
2．巩固“平均分”。
（1）出示教科书“做一做”。
请学生看题，并说一说题意。
小学1年级袋鼠数学2019竞赛题
(D) 3 and 5
(E) 4 and 5
Question 10 Patricia folds a sheet of paper twice and then cuts it as shown below. How many pieces of paper does she end up with?
(D) 17
(E) 20
2
Question 8
Singapore Math Kangaroo Contest 2019 – Primary 1 / Grade 1
(A) 5 cents
(B) 6 cents
(C) 7 cents
(D) 8 cents
(E) 9 cents
Section B (Correct – 4 points | Unanswered – 0 points | Wrong – deduct 1 point)
(E) 8
Question 7 Maya Bee visited all the flowers that lie inside the rectangle, but outside the triangle. How many flowers did Maya visit?
(A) 9
(B) 10
m
? (C) 10 m
(D) 11 m
(E) 12 m
Question 16
A train from Kang station to Aroo station leaves at 6:00 AM and passes the other three stations on
(A) 16
(B) 18
(C) 20
(D) 24
新加坡 小学数学 Math Stars Grade 3
Someone said, "A picture is worth a thousand words." Turning the words of a problem into a picture or a diagram can help you "see" the problem. By using the part of your brain that visualizes a situation or object, you may see relationships or information that helps you solve the problem. When someone tells you a story, try turning the words into a motion picture or a cartoon. When reading a descrip-tion, try "seeing it in your mind's eye." If you can do these things, this strategy may be for you! Try using a picture or make a diagram to solve this problem:Every bike slot in a bicycle rack was filled. Donna's bike was in the middle. Therewere six bikes to the right of Donna's. How many bicycles were in the bicycle rack?Strategy of the Month55 1. Fred buys a pencil for 30 cents.Sheila pays with 2 quarters. How many different ways can Sheila get money back?Answer_________. List all of the ways below.55 2. Examine the letters below. Which are symmetric? Draw all lines of symmetry on the letters that are symmetric.E N S X555 3. Jason, Trini, and Billy arearguing over who will be first, second, and third in line for lunch. How many different ways can they line up?555 4. Take a sheet of paper . Fold it in half.Without opening up the sheet of paper, fold it in half again. If you opened up your sheet of paper now, how many sections would there be? Open up your sheet to check out your answer! Repeat this procress several times, each time adding one more fold to your sheet of paper. Do you see a pattern? Number of Folds Number of Sections0 1 1 2 2 3 4 5 6MathStars Home HintsEvery year you grow and change in many different ways. Get someone to help you measure and record these data about your-self.How tall are you? _____________________How much do you weigh? ______________What is the circumference of your head?_______________________55 5. Draw the flip of the shaded figure to create a symmetrical shape.5SQUARES HAVE EQUAL THAN ARM SPANS.ARM SPANS THAT ARE LONGER THAN THEIR HEIGHTS.centimeters.55 7. How many dots are in the next square in this sequence?55 8. How many students are in Mrs.Lander's class?__________What fraction of students in Mrs. Lander's class have birthdays in June?__________••••••••••••••••••••••••••••••About these newsletters...The purpose of the MathStars Newsletters is to challenge students beyond the classroom setting. Good problems can inspire curiosity about number relationships and geometric properties. It is hoped that in accepting the challenge of mathematical problem solving,students, their parents, and their teachers will be led to explore new mathematical hori-zons.As with all good problems, the solutions and strategies suggested are merely a sample of what you and your students may discover. Enjoy!!Discussion of problems.....2.( E X ) The dotted lines represent the lines of symmetry. Studentsmight find it helpful to determine the lines of symmetry by using a MIRA or a mirror.Number of Folds Number of Sections0 1 1 2 2 4 3 8 4 16 5 32 6 64With each fold the number of sections doubles. (Students may state this pattern in a variety of ways.)1.(9 different ways: 1. 2 dimes 2. 4 nickels 3. 20 pennies 4. 1 dime & 2 nickels 5. 1 dime & 10pennies 6. 2 nickels & 10 pennies 7. 1 nickel & 15 pennies 8. 3 nickels & 5 pennies 9. 1dime, 1 nickel, & 5 pennies ) Students may use guess and check or systematically write the ways.e.g. Start with one type of coin, then go to two types of coins, and finally go to three types of coins.3(6 different ways) Students may act out this problem or use manipulatives such as teddy bear counters (one red, one blue, one green) to represent the three students. They should keep a table or chart to record their results.4.5.Students might find it helpful to trace the figure on a piece of waxed paper and then fold it on the line of symmetry to create the symmetrical shape.6.(Answers will vary) After measuring their height and armspan, students will need to refer to theinformation on squares, tall rectangles, and short rectangles in order to correctly categorizethemselves.7.(25 dots) Students will analyze the dimensions of each square and note that the next squareshould be a 5 x 5 square.8.(25 students; 3/25 have birthdays in June) Students will neeed to analyze the graph to deter-mine that there are 25 students and 3 students have June birthdays.Strategy of the MonthYour brain is an organizer. It organizes infor-mation as it stores that information. When a problem involves many pieces of information,your brain will have an easier time sorting through it if you make an organized list. A list helps you be sure you have thought of all of the possibilities without repeating any of them. Like drawing a picture or making a diagram, making an organized list helps your brain "see" the problem clearly and find a solution. Try making an organized list to solve this problem: If you must use 15 or fewer coins, how many different combinations of coins can be used tomake $1.00?55 1. What part of the M&M'S are not or-ange?Pack of M&M's red 3orange 12green 5yellow 9blue 6brown 12light brown 2Answer:__________ out of __________ are not orange.55 3. Roger is a very busy boy. He spendstwo weeks at basketball camp, one week atchurch camp, one week at grandma's house, and three weeks at summer camp during his ten week vacation. Estimate how many days he spends at home on his summer vacation.Answer:__________days at home on summer vacation.1213324556778846555 2. Graph the ordered pairs on thecoordinate grid. Connect the dots to make a pattern block. You will need to connect A and F. What is the pattern block that you made?A. (2, 6)B. (4, 6)C. (5, 4)D. (4, 2)E. (2, 2)F. (1, 4)5555 4. There once was a dog who had twofleas, and on each flea there were three hairs, and on each hair there were four mites. How many mites were on the dog?__________1.(37 out of 49 M&Ms are not orange) Students need to add all the M&Ms first. They must then subtract 12 from this answer. Students may have some difficulty with this problem because of the word "not."2.(A = (2,6) B=(4,6) C=(5,4) D=(4,2) E=(2,2) F=(1,4) The figure is a hexagon.) Students should not have any difficulty with this problem.3.(21 says at home on summer vacation) Students will determine that Roger is away from home 7 weeks. They can then subtract 7 weeks from 10 weeks to determine that he is home for three weeks or 21 days.4.(24 mites) Students can draw a picture to solve this problem or use manipulatives to represent the fleas, hairs, and mites.87654321087654321A BCDE F About these newsletters...The purpose of the MathStars Newsletters is to challenge students beyond the classroom setting. Good problems can inspire curiosity about number relationships and geometric properties. It is hoped that in accepting the challenge of mathematical problem solving,students, their parents, and their teachers will be led to explore new mathematical hori-zons.As with all good problems, the solutions and strategies suggested are merely a sample of what you and your students may discover. Enjoy!!Discussion of problems.....5.(See pictograph )6.7.square. Some students may find the answer by looking at the empty square and find its features by process of elimination.8.(1. 20 wings 2. 40 wings) Students may multiply two times the number, or they may count by2's. Students may enjoy making up their own problems similar to this problem.9.(2) Students may need to make drawings to do this problem (e.g. tally marks, stickmen), or theymay subtract and then divide the answer by 11.Strategy of the MonthBeing a problem solver is something like being a detective! A detective has to solve crimes by guessing what happened and checking the guess to see if it fits the situation. For some problems,your best strategy may be to make a guess and then check to see if your answer fits the problem.If not, decide if your guess was too high or too low and then make a second "guesstimate." A good detective keeps records (usually some kind of chart) to help see any patterns and to narrow down the possibilities. You should do this too.The results of incorrect guesses can give you valuable clues to the correct solution. Guess and then check the solution to this problem: I am a 2-digit number over 50. When you put me in groups of 7, 2 are left over. Thesum of my digits is 11. What number am I?555 1. The Tuttle family went to Sci-zoneand bought passes for each show. They spent exactly $20.00. How many passes could they buy? For which shows?$4.00 Planetarium $3.00 Holograms $6.00 Dinosaurs55 2. The horizontal or vertical distancebetweeen two dots in the diagram below is one linear unit. Create a shape that has a perimeter of 12 linear units. (Remember to only use horizontal or vertical lines, diagonal lines are not allowed!). . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .15102025503035405 3. Julie collected newspapers to recycle onFeb. 1 and Feb. 15. How many newspapers did she collect? Answer:_________5555 4. In the story Ramona Quimby, Age 8,Ramona is eight years old. If the copyright date on the book is 1971, how old is Ramona today?Setting Personal GoalsCommunicating mathematically means that you are able to share your ideas and under-standings with others orally and in writing.Because there is a strong link between lan-guage and the way we understand ideas, you should take part in discussions, ask questions when you do not understand, and think about how you would explain to someone else the steps you use in solving problems.MathStars Home HintsMemorizing number facts will save you time.Flash cards are one way to learn new facts, but you also might try these ideas:• play dice or card games in which you need to add, subtract, multiply, or divide.• learn new facts using ones you already know (7+7 =14 so 7+8=15).• learn facts that are related to each other (7x6=42, 6x7=42, 42÷6=7, 42÷7=6).• make a list of the facts you need to memorize and learn 5 new facts each week.• Spend 5-10 minutes every day practicing facts.555 5. At Toys-R-Us you bought an actionfigure for $3.98. Tax was twenty cents. If you paid for your purchases with a five dollar bill,what coins could the clerk use if she wanted to use the fewest number of coins possible in returning your change?55 6. FUNCTION MACHINE!When you put a number in the function machine, it does something to it, and then spits out thechanged number! The table of the left shows the numbers that went into this function machine, and the changed number that came out.IN OUT A. If I put five into the 24 function machine, what 39 number will come 416 out?__________B. What does this functionmachine do to a numberthat you put in it?____ __________________558. If you drop a penny on the floor and itspins around on its edge, what solid shape does it look like?Circle one:CYLINDER SPHERE CONE555 7. Molly, Emed, and Brian were practic-ing archery. The chart below is a record of what each person shot. If an arrow in the red zone is worth five points, and arrow in the white zone is worth three points, and an arrow in the blue zone is worth one point, which child had the highest score?__________STUDENT RED WHITE BLUE MOLLY 3 4 2EMED 2 5 3BRIAN 4 0 4Blue 1 Pt.White 3 Pts.Red 5 Pts.About these newsletters...The purpose of the MathStars Newsletters is to challenge students beyond the classroom setting. Good problems can inspire curiosity about number relationships and geometric properties. It is hoped that in accepting the challenge of mathematical problem solving, students, their parents, and their teachers will be led to explore new mathematical hori-zons.As with all good problems, the solutions and strategies suggested are merely a sample of what you and your students may discover. Enjoy!!Discussion of problems.....1.(5 passes: 2 Planetarium, 2 Hologram, 1 Dinosaur ) Most students will use guess and check,branches on a tree, or charts.2.(Answers will vary) Students may use a geoboard to explore this problem. Some acceptableanswers:. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .3(55) Some students perceive graphing as a straightforward matter of counting and recording their data, without any choice. Students should understand that graphing is much more thanthis if they are given the opportunity to pose their own questions, collect their own data,analyze their data, and interpret their data.4.(In 1996 Ramona will be 32 years old) The answer will depend on this year's date. Studentsneed to remember that Ramona was eight years old in 1971.5.(1 half-dollar, 1 quarter, 1 nickel, and 2 pennies) The change could be given with the fivecoins listed. If a 50¢ piece is not used, six coins would be required--3 quarters, 1 nickel, and 2 pennies.6.(A: 25; B: Multiplies the number by itself) Students may give other acceptable answers forpart B.7.(Molly) Molly's score was 29, Emed's score was 28, and Brian's score was 24.8.(Sphere) Students will probably need to spin a penny rapidly on its edge to explore thisproblem.Strategy of the MonthNoticing patterns helps people solve problems at home, at work, and especially in math class!Math has been called "the study of patterns," so it makes sense to look for a pattern when you are trying to solve a problem. Recognizing patterns helps you to see how things are orga-nized and to make predictions. If you think you see a pattern, try several examples to see if using the pattern will fit the problem situation.Looking for patterns is helpful to use along with other strategies such as make a list or guess and check. How can finding a pattern help you solve this problem?If the first day of a year is a Friday what day of the week is February 19 of the sameyear?5 3. How many rectangles are in the figurebelow?5555 1. The third grade students atWestview Elementary School built a nature trail behind their school. The trail started and ended at the same place. It had five sides. Two were 60feet long and the remaining three were 30 feet long.A. What is the name of the shape of the nature trail?__________B. How long is the nature trail (in feet)?________C. How long is the nature trail (in yards)?______555 2. For his birthday Zack gets four pairsof shorts (red, blue, black, and green) and three new T-shirts (a Batman T-shirt, a Braves T-shirt,and a Carolina Panthers T-Shirt). How many different outfits can Zack make with his new clothes?555 5. What number am I?__________I AM NOT EVENI AM GREATER THAN 200THE SUM OF MY DIGITS IS NINE I AM A MULTIPLE OF FIVE I AM LESS THAN 300I AM EVENLY DIVISIBLE BY NINE55 4. During softball practice, Lakisha hits theball on the average of two out of every four pitches. If she gets ten pitches during practice,how many times would you expect her to hit theball?Setting Personal GoalsIf your goal is to become a more responsible student, it means that you :• actively participate in class. • complete your assignments.• have everything you need in class.• ask for help when you do not understand. • be willing to investigate new ideas.MathStars Home Hints555 6. Are all of these geoboards divided inhalf?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Answer:__________555 7. Brittany and Chris are playing a gamecalled Carousel. They get six points every time they draw a green card and ten points every time they draw a black card. Whoever scores 150points first wins the game. Brittany has 82 points now and she has nine cards. Chris has 88 points now and ten cards. How many cards do Brittany and Chris have of each color?Brittany: Green__________Black__________Chris: Green__________ Black__________Set aside a special time each day to study. This should be a time to do homework, to review, or to do extra reading. Be organized and have a special place in which to work.This place needs to have a good light and to be a place where you can concentrate. Some people like to study with quiet music; others like to sit at the kitchen table. You need to find what works for you!Remember that when you are reviewing or working on solving problems it may help to study in a group.555 8. You want to make cookies for a classof 24 students. Using the recipe for cookies, how much sugar would you use? Each recipe will make six large cookies.1/2 cup flour 1/2 cup sugar1/2 cup peanut butterAnswer:__________cup(s) of sugar55 9. There are five players on a basketballteam. If ten teams are playing in the tournament on Sunday, how many players are there altogether in the tournament?About these newsletters...The purpose of the MathStars Newsletters is to challenge students beyond the classroom setting. Good problems can inspire curiosity about number relationships and geometric properties. It is hoped that in accepting the challenge of mathematical problem solving,students, their parents, and their teachers will be led to explore new mathematical hori-zons.As with all good problems, the solutions and strategies suggested are merely a sample of what you and your students may discover. Enjoy!!Discussion of problems.....1.(A: Pentagon; B: 210 feet; C: 70 yards ) Students will most likely draw a picture of the trail and label the sides.2.(12 outfits) Students may use cutouts of shirts and shorts or some other manipulative to explore the possible combinations. They need to keep a record of all combinations.3.(3) Students need to realize that squares are also rectangles.4.(5) Most students come to third grade with an intuitive understanding of ratio, proportion, and probability. If they understand the relationship between two and four, they can then identify the number having the same relationship with ten.5.(225) Students will need to know what the terms even, sum, multiple, and divisible mean.They might use a number chart to eliminate numbers as they consider each clue.60 ft.60 ft.30 ft.30 ft.30 ft.6.(Yes) Most students will not realize that a figure can be divided into half with both halves notbeing the same shape; however, they must be the same size. Students may want to usegeoboards to practice making shapes like these.7.(Brittany: Green 2, Black 7; Chris: Green 3, Black 7) Students will add black and greencards until they arrive at the correct answer. Many students will use drawings and guess andcheck to solve this problem; however, it was designed to use the different operations to solve the problem.8.(2 cups of sugar) Students will first figure out how many recipes it will take to make 24 cook-ies. They will then have to find the total of the 1/2 cup measurements. You may want to have measuring cups out in a center for students to use.9.(50 players) This problem is designed for students to multiply; however, some students may userepeated addition.Strategy of the MonthSometimes mathematical ideas are hard to think about without something to look at or to move around. Drawing a picture or using objects or models helps your brain "see" the details, organize the information, and carry out the action in the problem. Beans, pennies,toothpicks, pebbles, and cubes are good ma-nipulatives to help you model a problem. You can use objects as you guess and check or look for patterns. Try using objects to help you solve this problem:Twenty-seven cubes are placed together to make a large cube that is painted on the outside. How many small cubes will have 2and only 2 faces painted?555 4. How many small cubes would it taketo build the rectangular prism below?__________5 2. Chad and his family hiked a 40 mile stretchof the Appalachian Trail this summer. On this section of the Appalachian Trail there is an aide station every ten miles. After hiking 23 miles,Chad tripped and seriously injured his arm. Circle the closest aide station his family should use.555 5. You are taking a survey at Tina'sdoughnut shop. You observe 16 cars goingthrough the "drive through." Every person, driver and passenger, orders a doughnut. Some cars only contain one person, a driver. No car contains more than four people, including the driver.Estimate the fewest doughnuts that could be sold.__________Estimate the most doughnuts that could be sold to the nearest ten.__________0 mi. 10 mi. 20 mi. 30 mi. 40 mi.55 3. How many triangles can you find in thispicture?5555 1. Steven, Jency, Cameron, and Ali liketo collect things. Among the four students, they collect T-shirts, rocks, baseball cards, and shells.Jency likes to collect only rocks. Ali collects two items but she doesn't collect T-shirts or shells.Cameron collects the same thing as Jency and Steven. Steven likes to collect only those things that Ali doesn't like to collect. What does each child collect?Steven:_______________Jency:_______________Cameron:_______________Ali:_______________MathStars Home HintsRemember when you had "Show and Tell" in kindergarten? Now you have a great deal to share in mathematics. Talk to the folks athome about what you are learning. Show them your papers and tell them about what is happening in your math class. Let them see that you are doing problems in class similar to these. Each week choose an assignment that you are proud of and display it somewhere in your house.Mathematics is all around us. We use it every day in personal living and in all of our school work. When we read graphs in social studies,gather and use data in science investigations,or count in music or physical education, we are using mathematics. We make connections in our math classes also; for example, measure-ment skills help us in solving many geometry problems and classification skills help us in organizing data. We use computation in many different situations. You will become a stonger mathematics student by making connections.Setting Personal Goals557. Here are some clues to find my secretshape.I am a four sided figure.I have four right angles.People that don't have any fun are called me.What am I?Answer:_______________558. These are the blocks needed to makeone tent:1 ¢10 ¢ 5 ¢25 ¢Flowers 11¢Number of Number of Number ofTents Triangles Trapezoids1 2 1 2 4 2 3456How many triangles and trapezoids will you need to make six tents?Answer:__________triangles__________trapezoids555 6. How many flowers can Worth buywith these coins if a flower costs 11 cents?Answer:__________flowersAbout these newsletters...The purpose of the MathStars Newsletters is to challenge students beyond the classroom setting. Good problems can inspire curiosity about number relationships and geometric properties. It is hoped that in accepting the challenge of mathematical problem solving, students, their parents, and their teachers will be led to explore new mathematical hori-zons.As with all good problems, the solutions and strategies suggested are merely a sample of what you and your students may discover. Enjoy!!Discussion of problems.....1.(Steven: T- shirts and shells; Jency: Rocks; Cameron: T-shirts, rocks, and shells; Ali:Rocks and baseball cards ) Students might choose to organize the information in a matrix.An example:T-shirts Shells Rocks Baseball cardsSteven Yes Yes X XJency X X Yes XCameron Yes Yes Yes XAli X X Yes Yes2.(20 miles) Students should understand that 23 rounds to 20.3.(5) Students might start counting the small triangles and then move to the largest.4.(27 cubes) Students may use wooden blocks, base ten cubes, or other appropriatemanipulatives to build the rectangular prism and solve the problem.5.(Answers may vary; 60) Students may multiply, draw cars, or make a table to arrive attheir estimates.6.(3) Students should realize that they will have money left over. They may use a diagram oradd up all their money and divide by 11.7.(Square) Students should follow each clue to find the geometrical shape. Some students maysay rectangle; however, that is not correct because it does not fit with clue 3.8.(6 trapezoids and 12 triangles) Some students may multiply 1 x 6 for trapezoids and 2 x 6 fortriangles; however, the problem was designed for them to complete the table. Students mayenjoy designing their own patterns.Strategy of the MonthWhen a problem involves data with more than one characteristic, making a table, chart, or graph is a very good way to organize the information. It helps your brain to identify patterns and to discover any missing data.Tables help you record data without repeating yourself. Making a table or chart is especially useful for certain problems about probability and for some logic problems. Sometimes tables and charts are included in your information and you need to read through them carefully to understand the data you need to solve your problem. Creating a graph is also a good way to organize and visualize information. Make a table to solve this problem:A school cafeteria sells popsicles for 50¢, nutty buddies for 80¢, and ice cream sand- wiches for 60¢. If a student spent $6.00 in May for frozen snacks what could thestudent have purchased?55 1. How many blocks do you need to com-plete this solid cube? Answer:__________5 2. Brenda went to visit her boyfriend at col-lege. Her car's gas gauge looked like figure A when she started. It looked like figure B when she got to the college. If her gas gauge was working correctly, could she return home without adding gas? Answer:__________ E FE F5555 3. Madeline sells five roses on the firstday, seven roses on the second day, ten on the third day, fourteen on the fourth day. If Madeline continues her selling pattern, how many roses will she sell on the tenth day? How many will she sell on the fifteenth day?Answer:_________roses on the tenth dayA .B .555 4. There are 77 french fries in a largeorder of fries. A small order of fries is one-third the size of a large order of fries. Estimate how many fries are in the small order.MathStars Home HintsSetting Personal GoalsPerseverance means that you do not give up easily. Good problem solvers try different strategies when they are stumped and are not discouraged when they cannot find an answer quickly. They stick to the task, using all of their previous experiences to make connections with what they know and the problem they are trying to solve. If something does not work,they discard the unsuccessful idea and try again using a different strategy.Everyone learns from sharing, and you can continue to learn by teaching others about the new mathematics ideas you are learning.Become a teacher and help a younger student.Explain what you have learned and what else you want to know. Good teachers set goals and evaluate the progress made toward reaching these goals. You will continue to be a learner whenever you become a teacher.555 5. You have been given 24 squareceramic tiles. Complete the chart below showing he dimensions of all the rectangles you can make with 24 square tiles.LENGTH WIDTH55 6. What number am I?__________I AM SMALLER THAN 200I AM A MULTIPLE OF 10YOU CAN MAKE ME IF YOU HAD ONLY QUARTERS I AM AN EVEN NUMBERTHE SUM OF MY DIGITS IS SIX5557. The circle below has the words"MATH SUPER STARS" written around the edge,with one letter in each section. Create a spinner using the circle by placing a paper clip and apencil point at the center of the circle and spinning the paper clip.If you spin the spinner 100 times, which letter (A,E, H, M, P, R, S, T, or U) do you think will the spinner land on most often?__________Create a spinner and spin the paper clip 100 ing the chart below, record the letter the paper clip fell on each time. Was your prediction cor-rect?A E H M P R S T UT AM H SUP E RSASTR。
新人教版2024--2025学年度第一学期七年级英语期末测试卷及答案
新人教版2024--2025学年度第一学期期末测试卷七年级 英语本试卷总分100分，考试时间60分钟。
一、语音题(共5小题， 每小题1分，共5分)二、单项选择(共10小题， 每小题1分，共10分) ( ) 6. —Is John his________ name? —Yes, it is. His name is John Smith. A ．firstB ．secondC ．familyD ．last( ) 7. — Thank you for helping! — ________! A ．That’s rightB ．I’m not sureC ．You’re welcome( ) 8. —Are your CDs in the bookcase? —________. They are on the sofa. A ．Yes, it isB ．No, it isn’tC ．Yes, they areD ．No, they aren’t( ) 9. —Please call me when you ________ my help.—________. A ．find; ThanksB ．think; You’re welcomeC ．know; You’r e welcomeD ．need; Thanks( ) 10. We can read books in the library, ________ we can’t buy them in the library. A ．andB ．butC ．soD ．then( ) 11. —________ —We have it on Monday. A ．When do we have music?B ．What day is it today?C ．Why do you like music?( ) 12. —Rose, why are you angry with Lily?—She lost my favorite book, and she didn’t ________ say sorry. A ．evenB ．quiteC ．really( ) 13. —What’s your favorite subject? —Math. It’s _________ but _________. A ．difficult; interesting B ．useful; boring C ．relaxing; healthyD ．easy; free ( )14. —Do you know the ________ why Chinese people like red? —Because red is a symbol of good luck in China.……○………………内………………○………………装………………○………………订………………○………………线………………○…此卷只装订不密封……○………………外………………○………………装………………○………………订………………○………………线………………○…A．result B．reason C．record( ) 15. —________ has traditionally been seen as w omen’s work.—I don’t agree. All family members should take turns to do it. A．Homework B．Exercise C．Housework D．Dancing三、完形填空（共15小题，每小题1分，共15分）Tomorrow is Julia’s birthday. She and her father are in a 16 shop. Julia sees a red coat. She says, “Dadd y, look at the coat! It 17 so nice! Do you think Mum will 18 it?”“Oh, yes!” Mr Green says. “And I think the 19 will look good on her.”“And it’s on sale（促销）today. 20 price（价格）is only $98. We can give it to 21 as a present（礼物）,” Julia says. “Let’s 22 it for Mum.”“23 tomorrow is your birthday. I just 24 $100 now. You want a pair of sports 25 , don’t you?”“Yes, but Daddy, I have many pairs of sports shoes now,” Julia says. “Mum doesn’t have a 26 coat. My birthday is special（特别的）to 27 . It’s special to Mum, too. I want to28 her for being my mum.”Hearing this, Mr Green says, “You’re a 29 girl. Let’s30 it.”( )16. A．book B．clothes C．watch D．fruit( )17. A．finds B．has C．looks D．sounds( )18. A．like B．lose C．get D．see( )19. A．kite B．ruler C．color D．picture( )20. A．An B．The C．These D．Those( )21. A．me B．you C．her D．them( )22. A．buy B．play C．spell D．do( )23. A．And B．But C．After D．So( )24. A．have B．need C．finish D．love ( )25. A．socks B．shorts C．trousers D．shoes( )26. A．white B．yellow C．red D．blue( )27. A．them B．her C．you D．me( )28. A．meet B．thank C．excuse D．know( )29. A．tall B．strong C．good D．young( )30. A．ask B．help C．think D．take四、阅读理解（共18小题，毎小题1分，共18分）A杭州亚运会受世人关注，涌现出一大批优秀的中国运动员，让我们来认识一下他们！Hello! Everyone! My name is Ma Long. I’m from (来自)Liaoning. My phone number is 8885-5556. My good friend isXu Xin. He is in Shanghai. I like (喜欢) the color blue. Xu Xinlikes blue, too.Hi! My name is Zhang Yufei. I’m in Jiangsu. It’s a nice place(地方). My phone number is 8761-6591. Mr. Brown is myEnglish teacher. He’s very nice. I like him very much.Hello!I’m Quan Hongchan. I’m 16 years old and I am in Guangdong.My good friend is Spandolini. She is an English girl. I teach(教) her Chinese, and she teaches me English. Her phonenumber is 236-8792. My phone number is 8721-3155.( ) 31. Ma Long likes ________.A．red B．blue C．white D．yellow( ) 32. Zhang Yufei is in ________.A．Beijing B．Shanghai C．Shenzhen D．Jiangsu( ) 33. Mr. Brown is a/an ________teacher.A．math B．Chinese C．English D．music…○………………内………………○………………装………………○………………订………………○………………线………………○…………………○………………外………………○………………装………………○………………订………………○………………线………………○………………… 学校：______________姓名：_____________班级：_______________考号：______________________( ) 34. ________ phone number is 8721-3155. A ．Ma Long’sB ．Zhang Y ufei’sC ．Quan Hongchan’sD ．Spandolini’sB阅读下列材料，从A 、B 、C 、D 选项中选出最佳答案。
《平均分》人教版小学数学二年级下册PPT课件(第2.1课时)
2.把6个面包分给2个小朋友，可以怎样分？
（1）如果一个小朋友分 1 个，另一个小朋友分（ 5 ）
个。
4
（2）如果一个小朋友分 2 个，另一个小朋友分（ ）
个。
（3）如果一个小朋友分 3 个，另一个小朋友分（ 3 ）个。 （4）上面的几种分法中，第（ 三 ）种分法是平均分。
04 巩固练习
4. 哪种分法是平均分？在括号里画“√”。
03 小试牛刀 （选自教材P8 做一做） 1.哪些分法是平均分？在括号里画“√”。
√ √
03 小试牛刀 2.
一共有（ 16 ）片枫叶，每（ 4 ）片一份，平均分成了（4
）份。
04 巩固练习
1.(选自教材P11 T1)把8根
平均分给4个小朋友。
（）
（√）
（）
哪种分法对？对的在括号里画“√”。
04 巩固练习
√
04 巩固练习
3.我会填。
一共有（ 12 ）个蘑菇，每（4 ）个一份，平均分成了（3 ）份。
04 巩固练习
一共有（ 6 ）个气球， 每（ 2 ）个一份， 平均分成了（ 3 ）份。
一共有（ 18 ）个 ， 每（ 6 ）个一份，
平均分成了（ 3 ）份。
05 课堂小结
这节课你们都学会了哪些知识？ 把一些物品分成几份，每份分得同样多，叫平均分。
课时2.1
谢谢观看
二年级下册 数学课件
SECOND GRADE MATHEMATICS COURSEWARE VOLUME II
授课时间：20XX
XXX
数学课件
SECOND GRADE MATHEMATICS COURSEWARE VOLUME II
授课时间：20XX
2021-2022学年第一学期六年级上册Unit1测试卷(含听力材料+答案)
2021-2022学年六年级上学期Unit 1单元检测班别_______姓名_______学号_______全卷满分100分含2分书写分听力部分（40分）一、听录音，√出你所听到的图。
(10分)( ) ( ) ( ) ( ) （ ）( ) ( ) ( ) ( ) ( )（ ） （ ） （ ） （ ） （ ）（ ） （ ） （ ） （ ） （ ）二、听音，给下图中的建筑物标序号。
(5分)A. museumB. cinemaC. hospitalD. bookstoreE. post office三、听音，根据听到的内容用箭头画出行走的线路。
（5分）zoo park Hospital Cinema Gym Science museum Bookstore ee Library Post Office School Shoe Store Start here Zoo Park四、听录音，填单词，完成对话。
（10分）A: Excuse me, ________ is the ________, please?B: It’s ________ ________ the post office.A: ________ can I ________ there?B: Turn __________at the ____________.Then go __________. It’s_______ the right.A: I see. Thank you.B: You’re welcome.五、听读对话，判断下列句子正确打√错误打×。
（10分）( )1.There is a bookstore near the school.( )2.The post office is next to the bookstore.( )3.The post office is behind the hospital.( )4.Zhang Peng walks to the bookstore.( )5.Zhang Peng asks a policeman for help.笔试部分（60分）六、选词填空（5分）bookstore, cinema, science museum, library,hospital, post office, school1.We can send a letter in the __________.2.We can watch the films at the __________.3.If we are sick, we should go to the ______________.4.We can see a dinosaur show and robot show in the _________________.5.We can buy some books in the __________.七、请把下面的句子归类。
苏教版小学数学四年级下册练习六教案
苏教版小学数学四年级下册练习六教案Lesson plan of exercise 6 for grade 4 mathem atics in Primary School of Jiangsu Education P ress苏教版小学数学四年级下册练习六教案前言：小泰温馨提醒，数学是研究数量、结构、变化、空间以及信息等概念的一门学科，从某种角度看属于形式科学的一种，在人类历史发展和社会生活中，数学发挥着不可替代的作用，是学习和研究现代科学技术必不可少的基本工具。
本教案根据数学课程标准的要求和针对教学对象是小学生群体的特点，将教学诸要素有序安排，确定合适的教学方案的设想和计划、并以启迪发展学生智力为根本目的。
便于学习和使用，本文下载后内容可随意修改调整及打印。
练习六第五课时教学内容：教科书第76~78页。
教学目标：1、帮助学生整理和复习什么是奇数、偶数、素数、合数；怎样找出一个数的因数和倍数，进一步了解2、3、5的倍数的特征，并能正确判断一个数是不是2、3、5的倍数等。
2、在巩固倍数和因数的同时让学生再次感受数学知识的内在联系，体验数学分类的严谨性和数学结论的确定性，体会数学内容的奇妙、有趣，产生对数学的好奇心。
教学准备：小黑板、百数表等。
教学过程：谈话：前几节课我们学习了有关倍数和因数方面的知识，今天这节课我们重点来复习前段时间的知识。
一、复习倍数和因数1、练习六第1题出示题目，指名读题目要求，然后让学生独立完成在书上，交流时让学生说说怎样有序的找出一个数的因数和倍数。
二、复习2、3、5、等数的倍数的特征1、练习六第2题让学生先独立完成在书上，交流时引导学生回忆2、3、5等数的倍数有什么特征。
2、练习六第3题先让学生独立完成在书上，然后集体交流，并向学生说明类似的题目可以利用倍数和因数的知识来解答。
3、练习六第4题出示题目，让学生独立完成在书上，集体交流让学生说说想法，再引导学生整理所有的答案，并使学生明白当一个数同时具有两个数的倍数的特征时，它就是这两个数的倍数。
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小学数学Grade 4 （第一学期）测试
一、直接写得数。
（12分）
16×3= 25×4= 620+78= 130×8=
18×20= 700×50= 42×5= 280÷7=
120×7= 11×40= 60×90= 24×60=
二、竖式计算。
（16分）
73×62 540×60
306×25 820×14
三、填空。
（共20分）
⑴ 30400000读作： ，把它改写成用“万”作单位的数
是 。
⑵ 六千零三亿五千零一万写作： ，用“四舍五入”法省略亿位后面的尾
数是 亿。
⑶ 最小的自然数是 ，最大的八位数是 。
⑷ 在○里填上“＜”“＞”或“＝”。
63750 ○ 74300 1080600 ○ 890450
578600 ○ 576800 980009000 ○ 980000900
⑸ 如右图，已知∠1=30○ ，
那么∠2= ，
∠3= 。
⑹ 1个周角= 个平角= 个直角。
3
1
2
⑺ 右图中有 个梯形，
个三角形。
⑻ 估算： 68×102≈ 198×21≈
⑼ 一个因数是60，另一个因数是88，他们的积是 。
⑽ 用一副三角尺可以拼出 度和 度的钝角。
四、判断：
（对的打“√”，错的打“×”）（4分）
⑴ 线段只有一个端点。……………………………………（ ）
⑵ 长方形是特殊的梯形。…………………………………（ ）
⑶ 平行四边形的高有无数条。……………………………（ ）
⑷ 由六百万和六百组成的数是6000600。………………（ ）
五、选择正确答案的序号添在括号里。
（6分）
⑴ 不属于锐角的是（ ）。
① 89○ ② 91○ ③ 30○
⑵ 下面哪个数的近似数是67万（ ）
① 675000 ② 663000 ③ 666000
⑶ 下列哪一句话是错误的（ ）。
①平行四边形两组对边分别平行。 ②等腰三角形至少有两个锐角。
③平行线无限延长也可能相交。
六、量一量，画一画。
（8分）
⑴ 量出图中各角的度数。
⑵ 过点A分别画出直线的垂线和平行线。
1
2
∠1= ∠2=
七、文具店一个月卖出的几种文具情况如下表，请在空格中填上适当的数。
（9分）
品名 单价/元 数量 总价/元
笔记本 2 480（本）
计算器 25 20（台）
水笔 3 （支） 360
八、解决问题。
（25分）
1、海沧野生动物园的狮子一天要吃35千克的食物，十月份一个月要吃多少千克食物？
2、一本故事书有193页，如果笑笑每天看8页，25天能看完吗？
3、司机王叔叔从厦门出发到福州送货，前3小时的速度是60千米/小时，后2小时的
速度是50千米/小时，王叔叔一共行驶了多少千米？
4、小亮要从下面的长方形纸上剪下一个最大的正方形。剩下部分是什么图形？它的周
长是多少厘米？
12厘米
8厘米
·
A