Lesson plan

# 7. Organizing a collection (A)

teaches Common Core State Standards CCSS.Math.Content.K.CC.A.3 http://corestandards.org/Math/Content/K/CC/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2

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Lesson objective: Connect written numerals with sets of objects.

This lesson provides an opportunity for students to apply their knowledge and understanding of written numerals to a real-life situation. Students are asked to organize a set of marbles by counting the various colors and writing a numeral to represent each count.

Key Concept students will use:

• Any number of objects can be represented with a written numeral.

Skills students will use:

• rote counting to 10 (Grade K, Unit 1)
• naming a set of objects with the last number name said (Grade K, Unit 1)
• indentifying and writing numerals

Students engage in Mathematical Practice 2 (Reason abstractlly and quantitatively) as they count sets of objects and write numerals to represent them.

Key vocabulary:

• numeral
• organize

Special materials needed:

• counters or cubes to represent the marbles