
Algebra Tiles – Visualize multiplying and factoring algebraic expressions using tiles. 

Base Blocks – Illustrate addition and subtraction in a variety of bases. 

Color Patterns – Arrange colors to complete a pattern. 

Fifteen Puzzle – Solve this virtual version of the classical fifteen puzzle by arranging its tiles. 

Grapher – A tool for graphing and exploring functions. 

Pattern Blocks – Use six common geometric shapes to build patterns and solve problems. 

Pentominoes – Use the 12 pentomino combinations to solve problems. 

Polyominoes – Build and compare characteristics of biominoes, triominoes, quadrominoes, etc. 

Space Blocks – Create and discover patterns using three dimensional blocks. 

Towers of Hanoi – Solve the tower problem and test your theory by varying the number of disks. 

Triominoes – Manipulate the puzzle pieces and find multiple solutions. 

Turtle Rectangles – Change variables to observe differences in spiral designs. 