Lesson plan

# 10. How many can the garden grow? (A)

teaches Common Core State Standards CCSS.Math.Content.2.MD.A.1 http://corestandards.org/Math/Content/2/MD/A/1
teaches Common Core State Standards CCSS.Math.Content.2.MD.A.2 http://corestandards.org/Math/Content/2/MD/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Relate the size of the unit of measure to the number of units needed in a measured length and apply this relationship to solve a task.

This lesson provides an opportunity for students to apply their knowledge and understanding of measurement to a real-life situation. Students are asked to identify the number of objects needed based on the unit of measure in a given length. Students will construct a garden based on the directions and identify the number of plants in each row.

Key Concept students will use:

• There is an inverse relationship between the size of a unit of measurement and the number of those units it takes to equal a given length.

Skills students will use:

• Measurement and Comparing Length (Grade 1, Unit 16)

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they make sense of the problem and the units involved. Students will analyze the problem and create a map of the garden to show their solution.

Key vocabulary:

• foot
• inch
• inverse
• length
• meter
• meter stick
• relationship
• ruler
• tape measure
• tool
• unit of measure
• yard
• yardstick

Special materials needed:

• centimeter ruler
• inch ruler
• meter stick
• ruler
• tape measure
• yardstick