Open Educational Resources

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

Ratios & Proportions Unit

1/27/2018 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

1/3/2018 Linda Meng
6.RP.A.3 6.RP.A.3b 6.RP.A.3d 7.RP.A.1 7.RP.A.2 MP.1 MP.4 MP.5 MP.7 6 7 Activity

1/3/2018 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

Is a Super Ball REALLY Super?

Is a Super Ball REALLY "super?"  This activity allows students to collect data and to make an argument regarding this quetions. See the PowerPoint for details about the activity... Note: It is best to gain access to an authentic, Wham-O Super Ball made with Zectron! https://www.amazon.com/orginal-super-ball-wtih-zectron/dp/B0001ZN49I/ref=sr_1_2?ie=UTF8&qid=1513808409&sr=8-2&keywords=whamo+super+ball

6.RP.A.1 6.RP.A.3 7.RP.A.2 7.RP.A.3 8.F.A.3 8.F.B.4 8.F.B.5 HSF-IF.C.7 HSF-IF.B.6 HSA-CED.A.2 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 5 6 8 7 HS Activity

How Many Houses?

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.

8/8/2015 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

Here Fishy, Fishy!

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.

2/20/2015 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 6 7 Activity

Steeper, Faster, Division, and Slope

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!

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 7 8 HS Activity

Sharing Pencils

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.

2/19/2015 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 6 7 Activity

2015 Excellence in Mathematics Contest

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.

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

This activity is from the 2011 CGCC Junior High Math Contest Team Project. You may pick and choose which parts of the project to use or use it all! Percent increase/decrease and Area of circles The Counting Principle Pythagorean Theorem and Ratios

7.RP.A.3 7.G.B.4 7.G.B.6 8.G.B.7 7.RP.A.2 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 7 8 Activity

Number Sense: Getting a Feel for "BIG" numbers

Good number sense is fundamental for success in estimation, approximation, and problem solving. We need to develop a sense of large numbers because newspaper and television news reports contain many references to large quantities. This activity has students working with large numbers to understand their relative magnitudes.

9/26/2014 Trey Cox
8.EE.A.3 8.EE.A.4 7.RP.A.2 7.RP.A.1 MP.1 MP.2 MP.3 MP.4 8 7 Activity

How Big or How Little?

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?