## Open Educational Resources

Displaying 1 of 5 results
Rating | Views Title Posted Date Contributor Common Core Standards Grade Levels Resource Type

#### How Many Chickens?

Farmer Frank raises chickens and pigs. Students are asked to use specific given information to determine how many of Farmer Frank's animals are chickens. This problem will require students to persevere as they apply prior knowledge of fractions, ratios, and percents to algebra concepts such as solving a system of equations.

10/8/2015 Lynda Boepple
6.RP.A.3c 6.EE.B.7 AZ.6.NS.C.9 7.EE.B.4a 8.EE.C.8a 8.EE.C.8b 8.EE.C.8c MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 6 7 8 Activity

#### Coin Counting - Dan Meyer Three Act-Task

Systems of equations can be a difficult concept for students to understand. This activity is a useful tool for introducing the concept in a concrete way that will help them make sense of the ideas and procedures for solving a system of linear equations.

6/23/2015 Trey Cox
8.EE.C.8 8.EE.C.8a 8.EE.C.8b 8.EE.C.8c HSA-REI.C.6 HSA-REI.D.11 MP.1 MP.3 MP.4 MP.5 8 HS Activity

#### Solving Systems of Linear Equations

This is a lesson to introduce the idea of solving systems of equations using graphical methods and substitution.  The goal is to help students to make sense of the meaning of the solution to a system and to make sense of what it means to substitute.

8.EE.C.8b 8.EE.C.8a 8.EE.C.8 8.EE.C.8c MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 MP.8 7 8 Activity

#### Directed Distance - An Introduction to "Graph"

This annotated lesson can be used to introduce directed distance and the concept of graph. It can be used as the very first experience students have with graphs, as a review, and/or as an introduction to “circular” coordinates (you can choose to never refer to them as polar coordinates). It is highly interactive and connects the concepts of “new” graphing systems to rectangular coordinates. Initially, there is a brief history given and review of the Cartesian rectangular coordinate system.

9/5/2014 Trey Cox
5.G.A.2 6.G.A.3 5.OA.B.3 6.NS.C.8 7.RP.A.2d 8.EE.C.8a 8.F.A.1 MP.1 MP.2 MP.3 MP.4 MP.5 MP.6 MP.7 5 6 7 8 Activity

#### Explorations with Unit Rates, Slope, Equations of a Line and an Intro to Systems of Equations

Handouts to walk students through exploring unit rates, slope, equation of a line, x and y intercepts and an intro to systems of equations.

6/5/2014 Jacelyn O'Roark
8.EE.B.5 8.EE.B.6 8.EE.C.8a 8.EE.C.8b MP.5 MP.7 8 Resource