Lesson plan

# 5. Sort shapes (FP)

teaches Common Core State Standards MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards K.MD.B.3 http://corestandards.org/Math/Content/K/MD/B/3
teaches Common Core State Standards K.CC.B.5 http://corestandards.org/Math/Content/K/CC/B/5

# 5. Sort shapes (FP)

Lesson objective: Sorting and count to identify how many objects are in a category.

This lesson helps to build fluency with sorting and counting objects. Shapes are used here because they are familar and can be a concrete representation of a number. This work develops students' understanding that objects can be grouped and counted.

Students engage in Mathematical Practice 3 (Construct viable arguments and critique the reasoning of others). Students will defend their choice in categorizing objects and counting objects.

Key vocabulary:

• color
• group
• shape
• sort

Special materials needed:

• number cube