Open Educational Resources

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

How Big or How Little?

CC_BY-NC-SA

This activity is designed to have students think about what it means to “keep it in proportion” – a very common phrase, but what does it mean?

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

Nana's Lemonade - Dan Meyer Three Act Task

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In a brief video, students are confronted with the situation of a person squeezing a lemon slice into a small cup of water. Then a "big gulp" cup is placed next to the smaller, lemon filled cup. By asking the question, "How many lemon wedges do you need to add for the same lemony taste?" students will begin to experiment and mathematically determine the answer.

8/2/2016 Trey Cox
6.NS.A.1 6.RP.A.1 6.RP.A.2 6.RP.A.3 6.RP.A.3b 6.RP.A.3d MP.1 MP.2 MP.4 MP.1 MP.2 MP.4 6 Activity

2015 Excellence in Mathematics Contest

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This is the Team Project from the 2015 Junior High Excellence in Mathematics Contest at Chandler-Gilbert Community College. It involves lots of open ended problems from many mathematical areas: Find the weight of a snowman (geometry, proportional reasoning) Find how long it takes ice to form on a lake (rate of change, awkward units) Questions about the amount of mining done in Northern Minnesota (proportional reasoning, conversions) You can use just one part or all parts depending on the audience and the purpose.

8/2/2016 Scott Adamson
6.RP.A.2 6.RP.A.3 6.RP.A.3b 7.RP.A.2 7.RP.A.2a 7.RP.A.3 7.G.A.1 7.G.B.6 8.G.C.9 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 6 7 8 Activity

Sharing Pencils

CC_BY-NC-SA

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

Here Fishy, Fishy!

CC_BY-NC-SA

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