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# Math Problem of the Day

8th Online Interactives

Expressions and Equations

Pool Border Problem (Desmos)

Students explore different ways to find the number of tiles in the border of a square swimming pool.  They discover that the expressions they generate are all equivalent. (You would probably need to introduce this during a synchronous lesson and then have students work on it.)

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Enter algebraic or numeric expressions and compare. **Really cool modeling!**

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NCTM’s Algebra Tiles

Poses problems, has students model with algebra tiles and solve, tells them if they are correct or incorrect.

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(PBS Media Learning)

Interactive opportunity to balance a scale.

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Smallest Solution (Desmos)

Solving multi-step equations with variables on both sides. Algebraic thinking and justifying.

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A fantastic task about the fairness of tipping formulas.  Video-launched.  Best launched synchronously.

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Central Park (Desmos)

This experience contains a series of scaffolds leading students to be able to write an equation for a linear relationship.  It is an older Desmos task with some missing features so might be better used synchronously so you can provide instruction.

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Picture Perfect (Desmos)

This experience is engaging and challenging.  Students go generate linear equations that match a “hanging picture frames” context.  Scaffolding makes the algebra accessible.

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Classification of Solutions (Desmos)

Solve multi-step linear equations and classify them.

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Video Game:  Dragon Box (algebra 12+)

Teaches all the rules for solving algebraic equations but does it visually in a virtual video game environment..

The App is \$7.99

Data Science

8th Games
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