lesson introduces students to the concept of ratio through a hands-on,
delicious experiment. After an introductory activity where students
identify the ratio of girls to boys in a group of 10 selected students,
they create six different peanut butter and jelly sandwiches with
different ingredient ratios to find which is the tastiest. Students then
plan their own similar experiment using other concoctions which can be
expressed in ratios.
Using this resource
|Educational standard|Common Core State Standards for Mathematics
- Math > grades 6
- 6.RP.1: 1. Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities.
For example, "The ratio of wings to beaks in the bird house at the zoo
was 2:1, because for every 2 wings there was 1 beak." "For every vote
candidate A received, candidate C received nearly three votes."
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
Comments: 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.". Expectations for unit rates in this grade are limited to
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