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Lesson 9: Math Investigation – Prepare to Party (1)

Operations with Decimals and Percentages Unit Plan - Year 5 and Year 6 | Lesson 9 | 60 minutes

A 60 minute lesson in which students will apply knowledge of decimals and percentages to a real-world context.

Common Core State Standards alignment

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Perform operations with multi-digit whole numbers and with decimals to hundredths
Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. (CCSS.MATH.CONTENT.5.NBT.B.7)

Grade 6 > Standards for Mathematical Practice > Ratios & Proportional Relationships > Understand ratio concepts and use ratio reasoning to solve problems > CCSS.MATH.CONTENT.6.RP.A.3
Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent. (CCSS.MATH.CONTENT.6.RP.A.3.C)