# Operations & Algebraic Thinking – 3rd Grade

#### Represent and solve problems involving multiplication and division.

CCSS.Math.Content.3.OA.A.2
Interpret whole-number quotients of whole numbers, e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each. For example, describe a context in which a number of shares or a number of groups can be expressed as 56 ÷ 8.

Teacher Notes
Making sense of the meaning of division and quotients of whole numbers is critical and lays the foundation for students as they learn more complex mathematical concepts.

Student Knowledge Goals

I know the meaning of division.
I know what the numbers in a division problem represent.
I know a dividend is the number of objects to be shared equally.
I know a divisor is the number of equal shares or the number in each equal share.
I know a quotient is an answer to a division problem.
I can interpret and/or create an accurate context for a division problem.
I can use common division situations to help them understand the context of a division problem.
I can interpret quotients of whole numbers.

Vocabulary
dividend
division
divisor
equal shares
groups
partition
quotient

Lessons
Engage NY Module 1 B-4 – Understand the meaning of the unknown as the size of the group in division.
Engage NY Module 1 B-5 –  Understand the meaning of the unknown as the number of groups in division.
Engage NY Module 1 B-6 – Interpret the unknown in division using the array model.
Learn Zillion Lesson – Relate multiplication and division to the array model using equal groups.

Student Video Lessons
Learn Zillion – Interpreting whole-number quotients of whole numbers
Virtual Nerd - Interpret whole-number quotients of whole numbers
Study Jams – Relate multiplication and division

Online Problems and Assessments
Khan Academy – Questions and Video Lessons
Division word problems - facts to 10
Complete the division table