Lesson Plan

# 10. Comparing numerals and objects (A)

teaches Common Core State Standards CCSS.Math.Content.K.CC.C.6 http://corestandards.org/Math/Content/K/CC/C/6
teaches Common Core State Standards CCSS.Math.Content.K.CC.C.7 http://corestandards.org/Math/Content/K/CC/C/7
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Relate comparing objects to comparing numerals to determine which has a greater or lesser value.

This lesson provides an opportunity for students to apply their knowledge and understanding of comparison of numbers presented as written numerals to a real-life connection to which students can relate. Students are asked to compare who scored more or who scored less between team members of a soccer team.

Key Concept students will understand that:

• Written numerals can be compared using the language greater than, less than, or equal to.

Skills students will use:

• Counting and matching strategies to support their understanding of comparing numerals.
• The number path and counting sequence to support understanding.
• Comparison language of greater than, less than, and equal to, when explaining their reasoning.

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they apply and extend their understanding of comparing with objects to comparing written numerals. They also apply Mathematical Practice 6 (Attend to Precision) as they use correct comparison language: greater than, less than, and equal to. Students may rely on counting and matching strategies and the counting sequence as they transition to comparing written numerals.

Key vocabulary:

• compare, comparison
• counting, counting sequence
• equal, equal to
• greater, greater than
• less, less than
• more, more than
• number path
• same

Special materials needed:

• number path (optional)
• ten frames (optional)
• counters or connecting cubes for support