Lesson plan

# 3. Use math drawings to represent equal groups and relate to repeated addition (A)

teaches Common Core State Standards CCSS.Math.Content.2.OA.C.4 http://corestandards.org/Math/Content/2/OA/C/4
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

## You have saved this lesson plan!

Here's where you can access your saved items.

Dismiss

Lesson objective: Apply knowledge of organizing objects into equal groups to create arrays.

This lesson provides an opportunity for students to apply their knowledge and understanding of arrays to a real-life situation. Students are asked to help a character determine whether or not she has enough tickets for herself and her two friends to each ride two carnival rides.

Key Concept students will use:

• A group of objects can be organized in an array and thought of as a number of equal groups.

Skills students will use:

• Students may add to find the total and naturally point out a connection to skip-counting. (Grade 2, Unit 8)

Students engage in Mathematical Practice 7 (Look for and make use of structure). As they compose arrays they recognize that the array structure is a collection of rows and columns and that it can be seen as a unit.

Key vocabulary:

• array
• columns
• equal
• organize
• rows
• share
• skip count