Today in mathematics. we learned about word problem solving for addition to 20 and subtraction within 20.

1. Questioning and
M1S1U1
Problem Posing
Addition and Subtraction Word Problem

2. Persisting
Habit Of Mind:

3. Persisting means not giving up
until something good happens.
Habit Of Mind:

4. I will not give up on problems.
I will think positive thoughts.
I will do my best to find
answers.
How do I become persisting?
1.
2.
3.
Habit Of Mind Statements:

5. How do I solve
problems correctly?
What do I do
when I’m stuck?
Essential Question:

6. What do I do when I have a problem?
Essential Question Thoughts:

7. Pretest:
Instructions:
Solve the word problem by following
the steps and answering the guide
questions.

8. Pretest:
Ryder has 15 green cups and 6 yellow
cups. How many cups does he have
all in all?

9. Find what is asked.
Find what is given.
Choose an operation.
Here are the steps in solving word problems.
1.
2.
3.
Is it addition?
Is it subtraction?
4.Write a number sentence.
5.Box the answer
Topic 1: Solving Word Problems

10. Janine has 13 umbrellas and
Virakpich has 6 umbrellas. How
many umbrellas do they have
together?
Topic 1: Solving Word Problems

11. What is asked?
How many umbrellas do they
have together?
What is given?
Janine has 13 umbrellas
VIrakpich has 6 umbrellas
Topic 1: Solving Word Problems

12. Choose an operation.
I choose addition.
Topic 1: Solving Word Problems

13. Write a number sentence.
Topic 1: Solving Word Problems

14. Box the answer
13 + 6 =
Topic 1: Solving Word Problems
19

15. On Christmas Day, Johnny ate 12 red candies. Later that
day, he ate 8 blue candies.
How many did he eat altogether?
Topic 2: Addition to 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.

16. On Christmas Day, Johnny ate 12 red candies. Later that
day, he ate 8 blue candies.
How many did he eat altogether?
Topic 2: Addition to 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
12 red candies
8 blue candies
How many did he eat
altogether?
I choose addition.
12 + 8 = 20

17. There were 11 apples on a tree. There were 5 apples on
another tree.
How many apples were there on the two trees in total?
Topic 2: Addition to 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.

18. Topic 2: Addition to 20 Word Problem
Jen had 14 crayons. Her friend gave her 3 crayons. How
many crayons does Jen have in total?
What is given? What is asked?
Choose an operation. Write a number sentence.

19. Topic 2: Addition to 20 Word Problem
Bob made 13 cookies for the school bake sale. Paul baked
6. How many cookies did they make altogether?
What is given? What is asked?
Choose an operation. Write a number sentence.

20. Topic 2: Addition to 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
Ben ate 10 donuts. Later that day, he ate 7 more donuts.
How many did he eat altogether?

21. Topic 3: Subtraction within 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
John had 19 crayons. He lost 9 of them. How many crayons
does John have now?

22. Topic 3: Subtraction within 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
If you had 16 ice cubes and 11 of them melted, How
many you have left?

23. Topic 3: Subtraction within 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
If you had 20 candy and you ate 11 of them, how
many would you have left?

24. Topic 3: Subtraction within 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
If you had 15 birds in your garden and 12 of them
flew away, how many birds would you have left?

25. Topic 3: Subtraction within 20 Word Problem
What is given? What is asked?
Choose an operation. Write a number sentence.
If you had 18 marbles and 9 of them have rolled
away, how many of them would you have left?

26. Post Test:
Instructions:
Solve the word problem by following
the steps and answering the quide
questions.

27. Ryder has 15 cups.. How many cups does he
have left if he gives away 6 cups?
Post Test
What is given? What is asked?
Choose an operation. Write a number sentence.

28. Tyler bought 20 eggs and fried only 15 eggs. How many
fried eggs does he have left if he ate 3 fried eggs?
What is given? What is asked?
Choose an operation. Write a number sentence.
Seatwork A:

29. Tyler bought 10 eggs and fried only 5 eggs. How many
fried eggs does he have left if he ate 3 fried eggs?
What is given? What is asked?
Choose an operation. Write a number sentence.
Seatwork B:

30. THE END