Open Educational Resources

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Rating | Views Title Posted Date Contributor Common Core Standards Grade Levels Resource Type

Capture-Recapture

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Imagine that a city employee is given the task of counting the number of fish in a city pond in a park. The “capture-recapture” method may be used to approximate the number of fish in the pond. The employee could capture a number of fish, say 20, and tag them and release them back into the pond. Waiting until the fish have a chance to become mixed with the other fish in the pond, the employee can capture more fish. If the number of fish captured is 25 and 4 of them are tagged, we can use proportional reasoning to estimate the number of fish in the pond.

8/2/2016 Scott Adamson
7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c 7.RP.A.3 7.SP.A.1 7.SP.A.2 MP.4 MP.4 8 7 6 Activity

Preheating the Oven

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Students use rate of change ideas to predict how long it will take for an oven to preheat to 400 degrees. The youtube video may be used to bring drama to the lesson! A link to the video is here and also in the documents. https://www.youtube.com/watch?v=I2ooIWFAcII&list=UUiPlxONW80Z8rGpu3lSLwjg

8/2/2016 Scott Adamson
7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c 8.F.A.3 8.F.B.4 8.F.B.5 MP.1 MP.2 MP.3 MP.4 MP.6 MP.8 6 7 8 Activity

Sharing Pencils

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Sarah and Michelle are working on a class project using colored pencils. Given some information about the number of pencils that Sarah and Michelle had when they started, and how some sharing of pencils has taken place, students must employ proportional reasoning skills to determine how many colored pencils the girls now possess.

8/2/2016 Lynda Boepple
6.RP.A.2 6.RP.A.3 6.RP.A.3a 7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c MP.1 MP.3 MP.4 MP.6 MP.7 MP.1 MP.3 MP.4 MP.6 MP.7 6 7 Activity

Steeper, Faster, Division, and Slope

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What does "steeper" mean? What does "faster" mean? And how do these ideas connect to the idea of linear functions? This 3-part series explores these questions and helps students to understand why we divide when computing slope and what proportional correspondence has to do with it all!

8/2/2016 Scott Adamson
7.RP.A.1 7.RP.A.2 7.RP.A.2b 7.RP.A.2c 7.RP.A.2d 8.F.A.1 8.F.A.3 8.F.B.4 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 7 8 HS Activity

Here Fishy, Fishy!

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Yolanda and Zachary each have some fish. Zachary gives Yolanda some of his fish, and now he has twice as many fish as she does. Students must utilize given information and apply proportional reasoning skills in order to figure out how many fish Zach gave Yolanda.

8/2/2016 Lynda Boepple
6.RP.A.2 6.RP.A.3 6.RP.A.3a 7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c MP.1 MP.3 MP.4 MP.6 MP.7 MP.1 MP.3 MP.4 MP.6 MP.7 6 7 Activity

How Many Houses?

CC_BY-NC-SA

Carpenters and apprentices are busy building houses... Students are asked to answer four questions regarding the relationships between the number of workers and how many houses can be built during a specific number of days.

8/2/2016 Lynda Boepple
6.RP.A.1 6.RP.A.2 6.RP.A.3 6.RP.A.3b 6.RP.A.3d 7.RP.A.1 7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 6 7 Activity

Tesla Roadster Loan

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8/2/2016 Linda Meng
7.RP.A.2c 7.RP.A.3 6.RP.A.3b 6.RP.A.3c 6.EE.B.6 6.EE.C.9 7.EE.B.4a 7.EE.B.4 7.EE.B.3 MP.1 MP.3 MP.4 MP.8 7 Activity

Ratios & Proportions Unit

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8/2/2016 Sarah Gummow
6.RP.A.3 6.RP.A.3a 6.RP.A.3b 7.RP.A.1 7.RP.A.2 7.RP.A.2a 7.RP.A.2b 7.RP.A.2c 7.RP.A.2d MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 6 7 Lesson