7th Grade

Online Resources

The Number System


The Area Model:

Area Model: Multiplication with Whole Numbers

Interactive Simulation - PhET


Area Model: Decimals

Interactive Simulation - PhET


Area Model - Algebra

Interactive Simulation - PhET


Expressions and Equations:


Equality Explorer Basics

Interactive Simulation - PhET


Equality Explorer

Interactive Simulation - PhET


Equality Explorer: Two Variables

Interactive Simulation - PhET


Expression Exchange

Interactive Simulation - PhET

Number Sentence - Equations (Desmos)

The title doesn’t capture what this task is about.  It focuses on matching algebraic expressions to contexts and word descriptions.  It is a worthwhile task.


Equivalent Expressions (Desmos)


Desmos Pool Border Problem 

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.)


NCTM’s Pan Balance Equations 

Enter algebraic or numeric expressions and compare. **Cool modeling!**


NCTM Algebra Tiles

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


Balancing Scales to Solve Equations 

(PBS Media Learning)

Interactive opportunity to balance a scale.


Inequalities Polygraph (Desmos)

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

Obstacle Course

Video to Give you Inspiration