**Proportions and Ratios (6-8)**

*Ratio Rumble*

Link to App Store: Ratio Rumble, by Learning Games Lab/NM State University

Price:

The battle is on in this game where you build your own potions! Create ratios to win this mixture mix-off!

Ratio Rumble supports mathematical learning about equivalent ratios, and is relevant to Common Core topics such as:

•Identifying ratios when used in a variety contextual situations

•Providing visual representations of ratios

•Solving common problems or communicating by using rate

•Explaining why ratios and rates naturally relate to fractions and decimals.

Price:

**$1.99**The battle is on in this game where you build your own potions! Create ratios to win this mixture mix-off!

Ratio Rumble supports mathematical learning about equivalent ratios, and is relevant to Common Core topics such as:

•Identifying ratios when used in a variety contextual situations

•Providing visual representations of ratios

•Solving common problems or communicating by using rate

•Explaining why ratios and rates naturally relate to fractions and decimals.

**√ BUILDS CONCEPTUAL UNDERSTANDING***Desmos - Graphing Calculator and More*

Link to App Store: Desmos Graphing Calculator, by Desmos

Price:

Explore math with Desmos! Plot functions, create tables, add sliders, animate your graphs, and more -- all for free.

At Desmos, we imagine a world of universal math literacy and envision a world where math is accessible and enjoyable for all students. We believe the key is learning by doing.

To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free.

Price:

**FREE**Explore math with Desmos! Plot functions, create tables, add sliders, animate your graphs, and more -- all for free.

At Desmos, we imagine a world of universal math literacy and envision a world where math is accessible and enjoyable for all students. We believe the key is learning by doing.

To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free.

**√ BUILDS CONCEPTUAL UNDERSTANDING**