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GRADE 2

PRESENTER MATERIALS

©2016 Texas Education Agency. All Rights Reserved 2016 Mathematics Achievement Academy, Grade 2

PARTICIPATION NORMS

• Be fully present.

• Minimize distractions.

• Minimize “air time.”

• Take a chance.

• Celebrate accomplishments.


DISCOURSE NORMS

• Listen.

• Be involved.

• Contribute ideas.

• Participate by asking questions.

• Develop understanding, if not at the beginning, by the end.

Krusi, 2009 Krusi, J. (2009). Revoicing: The good, the bad, the questions. In B. A. Herbel-Eisenmann & M. Cirillo (Eds.), Promoting Purposeful Discourse (pp. 117-135). Reston, VA: National Council of Teachers of Mathematics.


MATHEMATICS NORMS

• Look for patterns in order to make generalizations.

• Make connections among models, representations, and algorithms.

• Communicate using academic vocabulary.

• Use mistakes as opportunities to support new

learning about mathematics. Yackel & Cobb, 1996

Yackel, E., & Cobb, P. (1996). Sociomathematical Norms, Argumentation, and Autonomy in Mathematics. Journal for Research in Mathematics Education, 27(4), 458-477.


Mathematics Achievement Academy Grade 2: Day 1

Academic Vocabulary

Algorithm

Anchor Chart

Balanced Pre-Assessment

Foundational–Bridging–Target Knowledge and Skills

Learning Progression

Represent • Equations • Number Lines • Pictorial Models

Strategies/Mental Strategies/Solution Strategies

• Place Value • Properties of Operations • Relationship Between Addition and

Subtraction

10

10

11

11

12

12


Determining Sums and Differences: Carousel Cards

A Harry and Zayn go to a carnival and play some games. Harry wins 236 tickets. Zayn also wins some tickets. Together the boys have 448 tickets. How many tickets did Zayn win?

B Harry and Zayn go to a carnival and spend $118 on tickets and food. The boys have $17 left at the end of the day. How much money did Harry and Zayn have at the beginning of their day?

C A carnival game has a large board with 158 balloons attached. The board has space for 175 balloons. How many more balloons can be attached to the board?

D Harry and Zayn go to a carnival and track the steps they walk during the morning. Harry walked 746 steps. Zayn walked 51 fewer steps than Harry. How many steps did Zayn walk?


Determining Sums and Differences: Speed Learning Cards

A Farmer Ted collected 293 eggs from his chicken coop. His wife used some of the eggs to make breakfast for the family. Farmer Ted has 278 eggs left. How many eggs did Farmer Ted’s wife use to make breakfast?

B Farmer Ted has 375 cows on his ranch. Farmer Ted also has some horses. Altogether, there are 615 cows and horses on Farmer Ted’s ranch. How many horses are on the ranch?

C Farmer Ted sheared some wool from his sheep. He sold 132 pounds of the wool. He still has 83 pounds. How many pounds of wool did Farmer Ted shear from his sheep?

D Farmer Ted had 265 bales of hay on his ranch. He buys some more bales of hay from a neighbor. Now Farmer Ted has 458 bales of hay. How many bales of hay did Farmer Ted buy?



Academic Vocabulary

Algorithm

Anchor Chart

Balanced Pre-Assessment

Foundational–Bridging–Target Knowledge and Skills

Learning Progression

Mathematics • Addend • Equation • Minuend • Subtrahend

Represent • Equation • Number Line • Pictorial Model

Strategies/Mental Strategies/Solution Strategies • Place Value • Properties of Operations • Relationship Between Addition and Subtraction


Equation Cards and Picture Cards Cut along the dotted lines. Card A

127 635+ =

Card G

432 719+ =

Card B

224 28− = Stickers

Card C

425 61+ =

Books

Card D

245 126− =

Pennies

Card E

49 83+ =

Cupcakes

Card F

107 67− =

Beads


Ryan’s Jelly Beans Use your number sense and mental strategies to solve the problem. Ryan had some jelly beans. He ate 27 of the jelly beans. Then he bought a new pack of 134 jelly beans. Now Ryan has 465 jelly beans. How many jelly beans did Ryan have at the beginning?


Solving Addition and Subtraction Problems: Scavenger Hunt Posters

A

341 Kimberly has a collection of tea sets. • She bought 26 tea sets at the state fair. • Kimberly sold 12 tea sets online. • She now has 264 tea sets.

With how many tea sets did Kimberly start?



B

528 Petra, Giovanni, and Kellan are playing a card game. • Petra collected 254 points. • Giovanni collected 145 points. • Kellan collected 263 points.

How many more points did Petra and Kellan collect together than Giovanni?



C

475 Andrew had $639. He spent $256 on a video game controller. He also spent $369 on a monitor. How much money does Andrew have now?



D

250 Zachary had $228 in his savings account. On Friday, he deposited $250 of his birthday money into his savings account. On Saturday, Zachary deposited $50 of his babysitting money into his savings account. How much money does Zachary have in his savings account?



E

14 Truman had some money in his savings account. • He deposited $369 in his savings account on

Sunday. • He deposited $250 in his savings account on

Tuesday. • He now has $960 in his savings account.

How much money did Truman have in his savings account before he made the two deposits?



F

372 Vi was making spirit bracelets to sell at the school fair. She started with 861 ribbons. Some ribbons were red. Some ribbons were white.

• She used 214 red ribbons to make the bracelets.

• She used 172 white ribbons to make the bracelets.

How many ribbons did Vi have left after making the spirit bracelets?


Spinners

Spinner 1:

Spinner Two:


Cut along the dotted line. Two sets are provided.

Check Point: 1, 2, and 0 Facts

1 3 + 2 = ______

2 ______ — 0 = 10

3 1 + 8 = ______

4 7 —2 = ______

5 9 — ______ = 1

6 0 + 6 = ______

7 5 + 1 = ______

8 4 — ______ = 0

9 10 — ______ = 8

10 9 + ______ = 11

Check Point: 1, 2, and 0 Facts

1 3 + 2 = ______

2 ______ — 0 = 10

3 1 + 8 = ______

4 7 — 2 =______

5 9 — ______ = 1

6 0 + 6 = ______

7 5 + 1 = ______

8 4 — ______ = 0

9 10 — ______ = 8

10 9 + ______ = 11


Set A Number Cards Cut along the bold dotted lines. Two sets are provided.

Copy on yellow cardstock.

0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10


Set B Number Cards Cut along the bold dotted lines. Two sets are provided.

Copy on blue cardstock.

20 19 18 17 16 15 14 13 12 11 10 20 19 18 17 16 15 14 13 12 11 10



Check Point: Using a 10

1 10 + 2 = ______

2 19 — 10 = ______

3 17 — 10 = ______

4 8 + 10 = ______

5 10 + 7 = ______

6 14 — 10 = ______

7 3 + 10 = ______

8 14 —______= 4

9 12 — ______ = 2

10 6 + ______= 16

Check Point: Using a 10

1 10 + 2 = ______

2 19 — 10 = ______

3 17 — 10 = ______

4 8 + 10 = ______

5 10 + 7 = ______

6 14 — 10 = ______

7 3 + 10 = ______

8 14 —______= 4

9 12 — ______ = 2

10 6 + ______= 16


Halving Facts Cards Cut along the dotted lines.

2 —1

4 —2

6 —3

8 —4

10 —5

12 —6

14 —7

16 —8

18 —9

20 —10


Difference Cards Cut along the dotted lines.

1 2 3 4

5 6 7 8

9 10


Halving Facts Cards Cut along the dotted lines.

2 —1

4 —2

6 —3

8 —4

10 —5

12 —6

14 —7

16 —8

18 —9

20 —10


Difference Cards Cut along the dotted lines.

1 2 3 4

5 6 7 8

9 10



Check Point: Doubling and Halving Facts

1 7 + 7 = ______

2 10 — 5 = ______

3 8 + 8 = ______

4 8 — 4 = ______

5 10 + 10 = ______

6 18 — 9 = ______

7 ______ + ______ = 10

8 ______ — 7 = 7

9 ______ + ______ = 18

10 ______ — 8 = 8

Check Point: Doubling and Halving Facts

1 7 + 7 = ______

2 10 — 5 = ______

3 8 + 8 = ______

4 8 — 4 = ______

5 10 + 10 = ______

6 18 — 9 = ______

7 ______ + ______ = 10

8 ______ — 7 = 7

9 ______ + ______ = 18

10 ______ — 8 = 8


Make a 10 Cards Cut along the dotted lines.

0 1 2 3

4 5 6 7

8 9 10



Check Point: Making a 10 and Subtracting from a 10 Facts

1 7 + ______ = 10

2 10 — 5 = ______

3 ______ + 10 = 10

4 10 — ______ = 4

5 8 + 2 = ______

6 10 — 9 = ______

7 ______ + 5 = 10

8 10 — ______= 7

9 9 + ______ = 10

10 10 — 8 = ______

Check Point: Making a 10 and Subtracting from a 10 Facts

1 7 + ______ = 10

2 10 — 5 = ______

3 ______ + 10 = 10

4 10 — ______ = 4

5 8 + 2 = ______

6 10 — 9 = ______

7 ______ + 5 = 10

8 10 — ______= 7

9 9 + ______ = 10

10 10 — 8 = ______


Copy on color paper. Cut along the dotted line. Two sets are provided.

Check Point: Using Tens

1 9 + 6 = ______

2 15 — 6 = ______

3 7 + 9 = ______

4 16 — 9 = ______

5 8 + 4 = ______

6 12 — 8 = ______

7 7 + 8 = ______

8 14 — 5 = ______

9 9 + 5 = ______

10 17 — 8 = ______

Check Point: Using Tens

1 9 + 6 = ______

2 15 — 6 = ______

3 7 + 9 = ______

4 16 — 9 = ______

5 8 + 4 = ______

6 12 — 8 = ______

7 7 + 8 = ______

8 14 — 5 = ______

9 9 + 5 = ______

10 17 — 8 = ______


Copy on different color paper than Check Point: Using Tens. Cut along the dotted line. Two sets are provided.

Check Point: Using Near Doubles and Halving

1 8 + 6 = ______

2 16 — 7 = ______

3 7 + 8 = ______

4 14 — 8 = ______

5 6 + 5 = ______

6 12 — 5 = ______

7 6 + 7 = ______

8 12 — 5 = ______

9 9 + 8 = ______

10 18 — 7 = ______

Check Point: Using Near Doubles and Halving

1 8 + 6 = ______

2 16 — 7 = ______

3 7 + 8 = ______

4 14 — 8 = ______

5 6 + 5 = ______

6 12 — 5 = ______

7 6 + 7 = ______

8 12 — 5 = ______

9 9 + 8 = ______

10 18 — 7 = ______



Academic Vocabulary Anchor Chart Feedback

• Intervention • Process • Task

Learning Progression Mathematics

• Partitive Division • Partitioning • Quotative Division

Practice

• Blocked • Interleaved • Skill

Represent

• Linear Models


Bonnie’s Birthday Bash • Use counters to model each situation. • Draw a picture of your model. • Fill in the blanks to describe your model. • Answer each question.

1 Bonnie is having a birthday party. She is making treat bags to give to her

friends at the party.

• Bonnie has 18 toy cars for the treat bags. • She puts exactly 2 toy cars in each treat bag.

How many treat bags can Bonnie make? Picture: Description: 18 toy cars separated into groups of 2 toy cars makes ________ groups of toy cars. Answer: Bonnie can make ________ treat bags.


2 Bonnie is filling vases with flowers to place on the tables at the party. She has 27 flowers. She uses exactly 9 flowers for each vase. How many vases can Bonnie fill with flowers? Picture: Description: 27 flowers separated into groups of ________ flowers makes ________ groups of flowers. Answer: Bonnie can fill ________ vases with flowers.

3 Bonnie has 24 balloons to use as party decorations. She will place

bunches of balloons around the party room. She uses exactly 6 balloons to make each bunch. How many bunches of balloons can Bonnie make? Picture: Description:

________ balloons separated into groups of ________ balloons makes

________ groups of balloons.

Answer: Bonnie can make ________ bunches of balloons.


Julian’s Sticker Collection • Use counters to model each situation. • Draw a picture of your model. • Fill in the blanks to describe your model. • Answer each question.

1 Julian is organizing his sticker collection.

• Julian has 18 superhero stickers. • He has 2 pages in his sticker book for the superhero stickers. • Julian places the same number of stickers on each page.

How many superhero stickers does Julian place on each page? Picture: Description: 18 superhero stickers separated into 2 groups makes

________ superhero stickers in each group.

Answer: Julian places ________ superhero stickers on each page.


2 Julian has 27 airplane stickers. He has 9 pages in his sticker book for the airplane stickers. Julian places the same number of airplane stickers on each of these pages. How many airplane stickers does Julian place on each page? Picture: Description: 27 airplane stickers separated into ________ groups makes ________ airplane stickers in each group. Answer: Julian places ________ airplane stickers on each page.

3 Julian has 24 monster truck stickers. He has 6 pages in his sticker book

for the monster truck stickers. Julian places the same number of monster truck stickers on each of these pages. How many monster truck stickers does Julian place on each page? Picture:

Description:

________ monster truck stickers separated into ________ groups makes

________ monster truck stickers in each group.

Answer: Julian places ________ monster truck stickers on each page.


Practice Type A Adding Doubles

55+

33+

66+

88+

44+

22+

77+

99+

66+

11+

33+

44+

77+

22+

88+

55+

11+

00+

99+

55+


Practice Type A Addition

9 4 ___+ = 6 ___ 13+ =

7 ___ 10+ = 12 ___ 20+ =

5 7 ___+ = ___ 6 14+ =

7 2 ___+ = 8 7 ___+ =

___ 4 14+ = 3 ___ 16+ =

___ 12 14+ = 2 ___ 11+ =

___ 15 19+ = 2 17 ___+ =

8 8 ___+ = 9 3 ___+ =

3 ___ 15+ = 5 ___ 10+ =


Practice Type B Identify Examples of Halves, Fourths, and Eighths

In 1 through 8, determine if the model is an example of halves, fourths, or eighths. Circle your answer choice.

1. 2.

Halves Fourths Eighths Halves Fourths Eighths

3. 4.

Halves Fourths Eighths Halves Fourths Eighths

5. 6. Halves Fourths Eighths Halves Fourths Eighths

7. 8. Halves Fourths Eighths Halves Fourths Eighths

0 1 0 1

0 1


Practice Type B Problem Solving with Subtraction

1. Mary has 419 books. She gave

237 books to charity. How many total books does Mary have now?

2. Fernando bought 98 trading cards. Max bought 47 trading cards. How many more trading cards did Fernando buy than Max?

3. Sharee collects stickers. She collected 528 stickers last year. She gave away 125 stickers that were doubles in her collection. How many stickers does Sharee have left?

4. Isaiah made a card tower with 375 cards. When he was finished, 129 cards fell down. How many cards are left standing in the card tower?

5. Terrance purchased 100 sodas for his family reunion. There were 24 sodas left after the reunion. How many sodas did Terrance’s family drink?

6. Jasmine is passing out free fruit snacks for a soccer tournament. She started with 1000 packages of fruit snacks. At the end of the tournament, Jasmine had 147 fruit snacks. How many fruit snacks did Jasmine pass out?

7. Niah is playing a video game. She collected 132 extra coins in her game. The next day, Niah lost 118 of the coins playing her game. How many extra coins does Niah have left in her game?

8. Marla collected 987 pennies for the Pennies for Your Heart Foundation. When she turned in the pennies, the bag broke and 329 pennies fell out. How many pennies were left in the bag?


Practice Type C Adding Numbers

1 Below is an example of adding two numbers using properties of

operations. Study the example so that you can complete the next problem.

( ) ( )( ) ( ) ( )

645 312600 40 5 300 10 2

600 300 40 10 5 2900 50 7

950 7957

+

+ + + + +

+ + + + +

+ ++

2 Determine the sum of the following expression using the mental strategy

shown above.

256 407+

3 Below is an example of adding two numbers using properties of operations. Study the example so that you can complete the next problem.

( ) ( )( ) ( )

473 108400 70 3 100 8

400 100 70 3 8500 70 11

570 11581

+

+ + + +

+ + + +

+ ++


shown above.

256 407+


5 Below is an example of adding two numbers using properties of operations. Study the example so that you can complete the next problem.

( ) ( )( ) ( )

498 220400 90 8 200 20

400 200 90 20 8600 110 8

710 8718

+

+ + + +

+ + + +

+ ++


shown above.

179 650+

7 Below is an example of adding two numbers using properties of

operations. Study the example so that you can complete the next problem.

( ) ( )( ) ( ) ( )

267 358200 60 7 300 50 8

200 300 60 50 7 8500 110 15

610 15625

+

+ + + + +

+ + + + +

+ ++


shown above.

579 145+


Practice Type C Counting Parts

A circle equals one whole. How many parts of the whole are shown below?

Let’s Take Another Look!

• Look at the whole that is being partitioned. • Count how many equal parts makes the whole.

• The circle is being partitioned into 8 equal parts or eighths.

• Each part equals one eighth.

• Count how many one-eighth parts are shown.

• There are 10 one-eighth pieces or ten eighths. In 1 and 2, how many parts of the whole are shown below?

= one whole

1

2

One eighth


In question 3 and 4, how many parts of the whole are shown below? = one whole 3 4 5 Represent the number 1,086 using expanded form. 6 Myra is placing smiley face stickers in her sticker book. She places

7 stickers in 5 rows on each page.

Which model represents the stickers on each page of Myra’s sticker book?

A C

B

D


7 Name the following shape. 8 Compare. Use <, >, or =.

836 863 9 Brad read 163 pages. Doug

read 96 pages. How many more pages did Brad read than Doug?

10 Ms. Suarez has 726 paper clips in her drawer. She gave some away to other teachers who needed them. Now she has 362 paper clips in her drawer. How many paper clips did Ms. Suarez give away?

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