Diona Ortiz's List: Algebra Pre-K - 2

Algebra (Grades Pre-K - 2)
Virtual manipulatives related to the NCTM Algebra standard for grades Pre-K - 2.
Algebra Tiles – Visualize multiplying and factoring algebraic expressions using tiles.
Color Patterns – Arrange colors to complete a pattern.
Fifteen Puzzle – Solve this virtual version of the classical fifteen puzzle by arranging its tiles.
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.
Triominoes – Manipulate the puzzle pieces and find multiple solutions.
Turtle Rectangles – Change variables to observe differences in spiral designs.