Lesson plan

# 2. Organize and count shapes using a counting strip (FP)

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

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Lesson objective: We can count to answer how many objects are arranged in a line.

This lesson helps to build grouping within a counting strip in order to count easily and efficiently. This work develops students' understanding of one to one correspondence and counting.

Students engage in Mathematical Practice 1 (Make sense of problems and persevere in solving them) as they represent, group, and count objects in this practice.

Key vocabulary:

• counting strip

Special materials needed:

• counters or shapes