Divide numbers into two factors, and build arrays to represent each factorization.

Web Interactive

Grades: 3rd to 5th, 6th to 8th

Measurement & Data

Num & Ops Base Ten

Algebraic Thinking

Geometric measurement: understand concepts of area and relate area to multiplication and to addition.

Use place value understanding and properties of operations to perform multi-digit arithmetic.

Gain familiarity with factors and multiples.

4.OA.B.4, 4.NBT.B.5, 3.MD.C.7b

Explore the amplitude, period, and phase shift by
examining the graphs of various trigonometric functions.

Grades: 9th to 12th, High School

Functions

Trigonometric Functions

Interpreting Functions

HSF-IF.C.7e, HSF-TF.B.5

Web Interactive

Grades: Pre K to 2nd

Measurement & Data

Counting & Cardinality

Relate addition and subtraction to length.

Count to tell the number of objects.

Know number names and the count sequence.

K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, 2.MD.B.6

Create customized activity sheets for your classroom.

Web Interactive

Grades: High School, 6th to 8th, 3rd to 5th, PreK to 2nd, 9th to 12th, Pre K to 2nd

Functions

Geometry

The Number System

Num & Ops Fractions

Measurement & Data

Linear, Quadratic, and Exponential Models

Use functions to model relationships between quantities.

Solve real-world and mathematical problems involving area, surface area, and volume.

Apply and extend previous understandings of numbers to the system of rational numbers.

Graph points on the coordinate plane to solve real-world and mathematical problems.

Develop understanding of fractions as numbers.

Relate addition and subtraction to length.

Analyze, compare, create, and compose shapes.

Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).

K.G.A.2, K.G.B.4, 2.MD.B.6, 3.NF.A.2a, 3.NF.A.2b, 5.G.A.1, 6.NS.C.6c, 6.NS.C.7a, 6.G.A.4, 8.F.B.5, HSF-LE.A.1b

Determine the volume of a box by filling it with
cubes, rows of cubes, or layers of cubes. Determine the surface area as
well by using the box's net.

Web Interactive

Grades: 3rd to 5th

Measurement & Data

Geometric measurement: understand concepts of volume and relate volume to multiplication and to addition.

5.MD.C.3a, 5.MD.C.3b, 5.MD.C.4, 5.MD.C.5a, 5.MD.C.5b