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Size of Group in Division


Videos and solutions to help Grade 3 students understand the meaning of the unknown as the size of the group in division.

Common Core Standards:3.OA.1, 3.OA.3

Related Topics:
Lesson Plans and Worksheets for Grade 3

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 3

Common Core For Grade 3

New York State Common Core Math Module 1, Grade 3, Lesson 4

Lesson 4 Concept Development

Concrete to abstract: Division as fair share, relate the answer to the unknown factor. I bought a new pack of 18 markers. I wanted to share them with Mrs. Sanders, so I divided them into 2 equal groups. How many markers did I give to Mrs. Sanders?
Pictorial to abstract: Analyze a picture to write a division equation wherein the solution tells the size of the group.
Abstract to pictorial: Analyze equations for the meaning of the solution and represent the equation with a drawing.

Lesson 4 Homework


Divide 25 erasers into ______ equal groups.

There are _________ erasers in each group.

8. Mr. Doyle has 20 pencils. He divides them equally between 4 tables. Draw the pencils on each table.

There are ___________ pencils on each table.

20 ÷ ________ = __________

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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