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2nd Grade Task: Addie's Equation

Standards & Objectives

Essential and guiding questions:

Part‐Part‐Whole

Can anyone tell me some ways you solved for the missing number?
Why did you choose this method?
Why do these give you the same answer? Explain.

Comparing Stories

How do we know that these stories match the equation?
What are some key words that help us out?
Are there words that help us know when to add and subtract in each story?

Activity/Task Variations

Blooms taxonomy level:

Understanding

Differentiation suggestions:

If students can’t get started….

Assessing Questions

Where do you think you should start? What do you know you can do? Draw a picture to help you.
Think about your favorite game or candy. Using these ideas, try to write a story based on those things. Can you come up with a game or activity to make this fun to read?

Extension suggestions:

If students finish early….

Assessing Questions

How did you solve for the missing number? Discuss your method with a peer.
Trade stories with a partner. Are you able to write out the equation the story is telling you about?
Does it match the equation given in the problem?
Advancing Questions
Instead of a 6, make that number a 12. How does that change the missing number?
Can you compute this mentally?
How?
Come up with your own equation. Switch with a partner and write a story based on your partner’s equation.

Originator:

Tennessee Department of Education