Algebra Tiles
Base Ten Blocks
Color Tiles
Cuisenaire Rods
Fraction Circles
Fraction Tiles
Geoboard
Hundred Board
Linking Cubes
Number Lines
Pattern Blocks
Place Value Disks
Rekenreks
Two-Color Counters
XY Coordinate Board 5 Ways to Multiply Adding Fractions Addition as Count and Measure Addition with Regrouping Area of a Circle Bar Graph Comparing Multi-Digit Numbers Counting Counting On and Back Distributive Property Division Division with a Remainder Division with Unit Fractions Equivalent Fractions Equivalent Ratios Estimating Area Finding Missing Numbers Improper Fractions to Mixed Numbers Isometric Drawings Many Ways to Show 213 Mixed Numbers Multiplication Models Multiplying by Multiple of 10 Multiplying Integers Multiplying Whole Numbers Open Number Line Addition Partitioning Rectangles Pattern Blocks in Base-10 Prime and Composite Numbers Proportions Simplifying Expressions Skip Counting Skip Counting Slope Intercept Form Subtracting Subtracting Subtracting Subtraction Strategies Subtraction Strategy Tens Frames Addition Understanding Fractions Ways to Make a Number What is In a Number