Cutting, Doubling, Food for All 6.RP.A.2

CCSS.MATH.CONTENT.6.RP.A.2
Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, “This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.”

 

I’ve always thought pictures that showed food split in half that shouldn’t be able to be split was super interesting so I believe this would be great way to get students interested and talking at the beginning of class. It allows the students to explore what they could possibly be learning about before they are thrown into word problems. From there, it can be used to talk about ratios and fractions of food.

They will be able to find the proportion between different groups of food and the cost and find the rate for a single bit of food and apply that to making sure there is enough money to pay for a large group of people. They will also be able to compare the ratios within a given recipe. As a teacher, I would have numbers that worked well in different sizes as they begin so that the students can apply them to interesting things that they want to be working with.

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