加州小学数学教材

1
Key Vocabulary
ones tens compare pattern estimate
Number Sense and Patterns
Explore
This caterpillar has a pattern on its body. Can you see it? Draw the pattern below.
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Chapter 1
Michael & Patricia Fogden/CORBIS
thirteen
13

Name
Take the Chapter Readiness Quiz at https://www.360docs.net/doc/985207616.html,.
Write the number of each. Circle the group that has more. 1.
trucks Match the number word and the number. 2. ten 3. three 4. eight Write the missing numbers. 5. 8 10 3
cars
1
2
3
5
8
10
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write the numbers in order from least to greatest. 6. 2, 9, 4, 3 , , ,
7. Ben found these 5 note cards on the sidewalk. five 5 six 6 one 1 seven 7
Help Ben put the note cards in order.
14
fourteen
This page checks skills needed for Chapter 1.

Dear Family, Today my class started Chapter 1, Number Sense and Patterns. In this chapter, I will learn to estimate, compare, and order numbers through 100. Here is an activity we can do and a list of books we can read together. Love,
Key Vocabulary
Activity
e raisins Pour som te. Have onto a pla d estimate your chil s, r of raisin e b m u e n the how clos d n fi to t then coun ue to is. Contin . te a m ti s e d estimate the n a t n u o e am t change th mates ge ti s e ’s d il ur ch ber. See if yo tual num c a e th closer to
The number 38 has 3 tens and 8 ones.
tens
ones
estimate to find a number close to an exact
amount
Click on the eGlossary link at https://www.360docs.net/doc/985207616.html, to find out more about these words. There are 13 languages.
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Books to Read
Spunky Monkeys on Parade by Stuart J. Murphy Harper Collins Publishing, 1999.
Earth Day—Hooray! by Stuart J. Murphy Harper Collins Publishing, 2004.
The Father Who Had 10 Children by Benedicte Guettier Penguin Young Readers Group, 2001.
fifteen
Eclipse Studios
15

Estimada familia: Hoy mi clase comenzó el Capítulo 1, El sentido numérico y los patrones. En este capítulo, aprenderé a estimar, a comparar y a ordenar los números hasta 100. A continuación, hay una actividad que podemos hacer y una lista de libros que podemos leer juntos. Cari?os,
Vocabulario clave
d Activida
obre un Viertan s z plato die ídanle pasitas. P (a) que sy a su hijo de pasita o r e m ú n estime el para s cuente lo o g e lu que e la certeza d la r es a u ig r ave arias vec v n ie b m . Ca en conjetura . Verifiqu n e m ti s e ad y ) se la cantid e su hijo(a d a r tu je eal. si la con número r l a s á m acerca
El número 38 tiene 3 decenas y 8 unidades.
decenas
unidades
estimar hallar un número que se acerca
a una cantidad exacta
Visiten el eGlossary en https://www.360docs.net/doc/985207616.html, para averiguar más sobre estas palabras, las cuales se muestran en 13 idiomas.
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Libros recomendados
Monos animados en un desfile de Stuart J. Murphy Harper Collins Publishing, 1999.
El Día de la Tierra — ?Hurra! de Stuart J. Murphy Harper Collins Publishing, 2004. El padre que tenía 10 hijos de Benedicte Guettier Penguin Young Readers Group, 2001.
16
Eclipse Studios
sixteen

Name
Tens and Ones
Get Ready
Main Idea
I will group ones to make ten.
You can group 10 ones as 1 ten.
I can group ones to make tens.
Vocabulary
ones tens
30 ones =
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
70 ones =
7
tens
90 ones =
3 9
tens tens
You can also group tens and ones.
24 ones =
24 is two tens and four ones.
2 24
tens
4
ones
20 + 4 =
Chapter 1
Richard Hutchings
Lesson 1
seventeen
17

Check
Write how many. 1. 2.
20 ones = 2
3.
tens
ones =
tens
Write how many tens and ones. Then write the number. 4.
3 tens 2 ones 30 + 2 = 32
5. 6.
tens + =
ones
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
tens + =
ones
tens + =
ones
7.
Explain how 26 is different from 62.
eighteen
18

Name
Practice
Write how many. 8. 9.
ones =
ten
tens =
ones
10.
11.
ones =
tens
ones =
tens
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write how many tens and ones. Then write the number. 12. 13.
tens +
Chapter 1
ones =
tens + =
ones
nineteen
19

Write how many tens and ones. Then write the number. 14. 15.
tens + 16. =
one
tens + 17. =
ones
tens + 18. =
ones
ten + 19.
ones =
tens + =
ones
tens + =
ones
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
a picture to solve. 20. Number Sense Juan has 4 packs of baseball cards. Each pack has ten cards. He has 3 more cards in his pocket. How many baseball cards does Juan have? baseball cards
20
twenty
Math at Home Activity: Write some 2-digit numbers, such as 67, and have your child tell you how many tens and how many ones (6 tens and 7 ones).

Name
Place Value to 100
Get Ready
Main Idea
I will find the place value in numbers to 100.
The place of a digit in a number tells its value. The digits in 29 are 2 and 9. What is the place value of each digit in 29?
Vocabulary
digit place value
2
tens
9
ones
2 tens = 20
9 ones = 9
Check
Circle the value of the red digit. 1. 25
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
2. 34
5
or
50
3 4. 42
or
30
3. 18
8 5.
or
80
2
or
20
Is 3 tens and 9 ones greater than 9 tens and 3 ones? Explain.
Lesson 2 twenty-one
Chapter 1
21

Practice
Circle the value of the red digit. 6. 78 8 or 80 7. 12 1 or 10 8. 59 5 or 50 9. 94 4 or 40
10. 65 6 or 60
11. 90 9 or 90
12. 21 1 or 10
13. 47 7 or 70
14. 81 8 or 80
15. 26 6 or 60
16. 39 9 or 90
17. 73 7 or 70
18. 25 2 or 20
19. 53 3 or 30
20. 75 5 or 50
21. 50 5 or 50
22. 47 7 or 70
23. 96 9 or 90
24. 38 8 or 80
25. 12 2 or 20
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
26. Cindy has 87 pennies. She needs 78 pennies to buy a pen. Does she have enough money to buy this pen? How do you know?
22
twenty-two
Math at Home Activity: Look at a newspaper. Find two-digit numbers. Name the tens and ones.

Name
Use Logical Reasoning
Main Idea
I will use logical reasoning to solve problems.
A hamster, a snake, and a frog are kept in 3 cages. The hamster is in the cage that is the same color as a stop sign. The snake is not in the cage that is the same color as the sun. Which animal is in each cage?
What do I need to find out? Circle the question.
How will I solve the problem?
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Use logical reasoning.
Look Back Does my answer make sense?
Chapter 1
Lesson 3
twenty-three
23

Remember
Use logical reasoning to solve. 1. Yolanda’s chain is the shortest. Jasmine’s chain is between the length of Barry’s chain and Yolanda’s chain. Who has the longest chain?
has the longest chain. 2. Antonio is more than 7 years old. He is less than 10 years old. He is not 8 years old. How old is Antonio? Antonio is years old.
Use logical reasoning to solve. 3. Each dinosaur is a difficult color. Looking from left to right the green dinosaur is between the red and brown one. The purple dinosaur is first. The red dinosaur is last. What is the order of the dinosaurs from left to right? , , ,
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
4. Maria picked a number. In her number, the digit in the tens place is greater than the digit in the ones place. What number did Maria pick? Maria picked .
24
twenty-four
Math at Home Activity: Take advantage of problem-solving opportunities during daily routines such as riding in the car, bedtime, doing laundry, putting away groceries, planning schedules, and so on.

Name
Read and Write Numbers
Get Ready
Main Idea
I will read and write numbers.
You can write numbers as words. Each number has a name. Sixteen is 16. Numbers to 20
1 2 3 4 5 6 7 8 9 10 one two three four ?ve six seven eight nine ten 11 12 13 14 15 16 17 18 19 20 eleven twelve thirteen fourteen ?fteen sixteen seventeen eighteen nineteen twenty 10 20 30 40 50 60 70 80 90 100
Tens
ten twenty thirty forty ?fty sixty seventy eighty ninety one hundred
Check
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Write the number. 1. thirty-five 3. sixty-three Write the number names. 5. 14 7. 6. 80 How do you know what digits to use to write twenty-three?
Lesson 4 twenty-five
2. seventy 4. forty-one
Chapter 1
25

Practice
Write the number or number name. 8. eleven 9. seventy-two 10. thirty-six
Look back at the chart if you need help.
11. eighty
12. seven
13. sixty-eight
14. twenty-seven
15. fourteen
16. eighty-six
17. one hundred
18. thirteen
19. forty-three
20. ninety
21. twenty-two
22. fifty-eight
23. seventy-seven
24. ninety-four
25. sixty-one
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
26. 15
27. 70
28. 40
29. Thinking Math What are two ways to write
?
26
twenty-six
Math at Home Activity: Write a 2-digit number, such as 17. Ask your child to write and read the number name.

Name
Estimate Numbers
Get Ready
Main Idea
I will estimate to find about how many.
Sometimes you do not need an exact number. You need an estimate. An estimate tells about how many.
Vocabulary
estimate
It looks like about 2 groups of ten or 20 marbles.
? 10 First Think what you know about ten. Next Use the group of ten to help you. Last Write your estimate. about
20
marbles
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Check
Estimate about how many. Circle the answer. 1. 2.
? about 30 3.
Chapter 1
about 60
10 buttons about 90
? about 20
10 olives about about 40 80
Explain how you estimated.
Lesson 5 twenty-seven
27
(tl tc bl bcl)Mike Houghton/StudiOhio, (cr)Richard Hutchings, (bcr br) StudiOhio

Practice
Estimate about how many. Circle the answer. 4. 5.
? about 20 6.
10 pencils about 40 about 90 7.
? about 20
10 balls about 40 about 70
? about 10
10 flowers about about 30 100
? about 20
10 pennies about about 50 80
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
8. Critical Thinking Emily estimates that she needs 50 paper plates for her class picnic. There are 22 students in her class. Is Emily’s estimate reasonable? Explain.
28
twenty-eight
Math at Home Activity: Look in the cupboard. Have your child estimate about how many cups there are.
(tl tcl tcr tr bcr br)Mike Houghton/StudiOhio, (bl bcl)StudiOhio

Mid-Chapter Check Lessons 1-5
Name Count. Write how many. 1. 2.
ones =
tens
tens + =
ones
Circle the value of the red digit. 3. 72 7 or 70 4. 24 4 or 40 5. 39 3 or 30
Write the number or number names. 6. eighty-nine 7. 15
Estimate about how many. Circle the answer.
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
8.
about 20
about 40
about 80
?
10 peppers
9. Mrs. Andrews picked a number. The number in the tens place is a 7. The number in the ones place is more than 3 but less than 5. What is the number?
Chapter 1
(cl cr)StudiOhio
twenty-nine
29

Chapter 1 Circle the value of the red digit. 10. 29 9 or 90 11. 32 3 or 30 12. 64 4 or 40
Write the number or number names. 13. ninety-three 14. fifty-two 15. 10
Count. Write how many. 16. 17.
ones =
ten
tens + =
ones
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Estimate about how many. Circle the answer. 18. 19.
? about 30
10 pickles about 50 about 80 about 60
?
10 grapes about 30 about 20
Formative Assessment
30
thirty
(bl bcl)Mike Houghton/StudiOhio

Name
Order Numbers
Get Ready
Main Idea
I will put numbers in order using a number line.
You can use a number line to order numbers.
5 is between 4 and 6.
Vocabulary
number line before after between
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
4 comes before 5. 6 comes after 5. 4,
5 is between 4 and 6.
5
,6
Check
Use the number line to fill in the blanks.
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1. 10, 3. 7, 5. 7, 7.
11 , 12
, 9, ,5
2. 13, 4. 6. 15,
, 15 , 4, 5 , 13
Choose four different numbers. Tell what you would do to put them in order.
Lesson 6 thirty-one
Chapter 1
31

Practice
Use the number line to fill in the blanks.
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
8. 21, , 23 9. , 12, 13 10. , 28, 29
11.
, 12, 11
12.
, 19, 20
13.
, 20, 21,
14.
, 13, 14
15. 25,
, 27
16. 17, 18,
,
17. 29,
, 27
18. 28, 29,
19. 15,
, 17
20. 13, 14,
21. 19,
, 17
22. 10,
,
, 13
Copyright ? Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Silicon Valley is a large area around Palo Alto, California. Many of the people who work there know a lot about computers. Computers can sort information very, very quickly. 23. Put this information in order; 1,5,9,4. Write the numbers from least to greatest.
32
thirty-two
Math at Home Activity: Ask your child to name the number that comes between 24 and 26. Try other numbers and ask what comes before and after the number.
David Chasey/Getty Images