Lesson plan

# 4. Mathematical relationships can be represented as expressions (A)

teaches Common Core State Standards CCSS.Math.Content.6.EE.B.6 http://corestandards.org/Math/Content/6/EE/B/6
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1

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Lesson objective: Apply the understanding of writing expressions to represent recipe amounts.

This lesson provides an opportunity for students to apply their knowledge and understanding of writing expressions to a real-life situation. Students are asked to convert a bulk recipe to a managable amount to make lemonade.

Key Concept students will use:

• Mathematical relationships can be represented with expressions, and we can use those expressions as we use numbers.

Skills students will use:

• ratio and rate reasoning to convert measurement (Grade 6, Unit 1)
• unit rate to write expressions (Grade 6, Unit 2)
• proportional reasoning to write expressions

Students engage in Mathematical Practice 1 (make sense of problems and persevere in solving them) as they find ways to using proportional reasoning to convert a bulk recipe into usable expressions.

Key vocabulary:

• conversion
• cups
• expression
• gallons
• values