Grade One Mathematical Stories 

Addition Practice and Introduction to Subtraction

Addition Practice

3 swimmers jumped in the pool.

Then 2 more dove in.

On the SmartBoard, a student records his thinking ...
3+2=5



3 kids swimming in the pool, 6 more join them.


2 people the pool 5 kids jump in.

Introduction to Subtraction


What happens when simmers leave the pool.
5 children are swimming in the pool.
3 of them get out of the pool.
2 children are still in the pool


12 swimmers are swimming in the pool.
9 swimmers leave.
Now, there are 3 swimming.
12-9=3 



Please they to create more math own stories at home.

Tomorrow will be our last day for swimming lessons.