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By Emily Grace Little and Rachel Spencer

Anna’s Shopping Adventure. By Emily Grace Little and Rachel Spencer. Anna got $10.00 from her grandma for her birthday. She wondered what she should spend her money on… She decided to take a shopping trip with her mom.

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By Emily Grace Little and Rachel Spencer

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  1. Anna’s Shopping Adventure By Emily Grace Little and Rachel Spencer

  2. Anna got $10.00 from her grandma for her birthday. She wondered what she should spend her money on… She decided to take a shopping trip with her mom.

  3. When Anna was at the candy store, she saw a chocolate bar. “I want to get that!” she said happily. The chocolate bar cost $1.00. Does Anna have enough money to get the chocolate bar?

  4. $10.00 is the same as ten $1.00 bills So Anna has enough money to buy something that only costs $1.00! =

  5. Anna was so happy when she realized she had enough money to get the candy bar. She handed $1.00 to the cashier and skipped out of the store with her bar of chocolate. How much money does Anna have left?

  6. $10.00 take away $1.00 is $9.00 10.00 - 1.00 9.00 So Anna has $9.00 left!

  7. Anna realized she had $9.00 left. She was excited to get something else with her birthday money. She decided to go into a toy store next. On the shelf, she saw a beautiful doll. “I really hope I can take this home!” she said. But then she also saw a coloring book on the next shelf. “I really want this too,” Anna thought. “But I don’t know if I have enough money to get both things!” The doll costs $2.00, and the book costs $2.50. Does Anna have enough money to get the doll and the book?

  8. + = We show the number of cents by putting it after the number of dollars. To show 50 cents we write .50. 2.00 +2.50 4.50 and we know that… $4.50 < $9.00 So Anna has enough money!

  9. Anna decides to get both the doll and the coloring book because she has enough money. How much money does she have left after buying the doll and the coloring book?

  10. $1 is the same as 4 quarters. We can split a dollar into quarters so that we can take away just part of the dollar. $9.00 take away $4.50 is $4.50 8 10 9.00 -4.50 4.50 So Anna has $4.50 left!

  11. Anna sees a movie store across the street and decides to go in while she eats her chocolate bar. She sees one of her favorite movies and wants to buy it. The movie costs $5.00. Does Anna have enough money to buy the movie?

  12. Anna has 50 cents is only half of $1.00. Anna has four and a half dollars. $4.50 is less than $5.00 $4.50 < $5.00 So Anna does not have enough money for the movie. Anna needs

  13. How much more money does Anna need to buy the movie?

  14. Anna has Anna needs

  15. Anna has Anna needs These $4 are the same But these quarters and this dollar are different

  16. How can we figure out how much more $1.00 is than two quarters (50cents?)

  17. We know that $1.00 is the same as four quarters. So we could replace the dollar bill with four quarters.

  18. Anna has Anna needs To make these the same, Anna needs two more quarters. So Anna needs two more quarters to buy her movie, or 50 cents.

  19. Anna decided to go home and offer to do chores for her mom to earn the extra 50 cents to buy the movie. Besides…she had too much to carry home already!

  20. Questions to Ask Page 3: Does Anna have enough money to get the chocolate bar? Page 5: How much money does Anna have left? Page 7: Does Anna have enough money to get the doll and the book? Page 9: How much money does she have left after buying the doll and the coloring book? Page 11: Does Anna have enough money to buy the movie? Page 13: How much more money does she need to buy the movie? Page 16: How can we figure out how much more one dollar is than two quarters (50 cents)?

  21. Activity Each student will be given a plastic bag containing pretend money: ten 1 dollar bills, one 10 dollar bill, and eight quarters. Using this money, students can model the problems in the story by counting out the correct amount of money. First, they will use the pretend money to find the correct answers to the questions. They will then draw how they figured out the problems, and finally, they will write the addition or subtraction algorithm they used to solve the problem. Students will be encouraged to use more than one way to represent and solve each story problem. While the students solve the problems, the teacher should observe the class to see that they understand the task. After each story problem, the teacher should invite several students to share their answers and to explain how they found the right answer. Follow- Up Activity: Students can work with a partner or a small group. Each group will get an envelope containing pictures of items. The price of each of the items will be written on the back of each picture. Students can practice “buying” these items while adding and subtracting money, just like they did during the story. They will continue to use direct modeling, drawing, and writing out the algorithms.

  22. Standard, Content, and Processes Standard 3rd Grade, Math Standard 4, Objective 4b: Find the sum or difference of numbers, including monetary amounts, using models and strategies such as expanded form, compensation, partial sums, and the standard algorithm. Content Adding and subtracting monetary amounts Processes Direct modeling, drawing, and writing addition and subtraction problems involving money

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