Comparing shapes
  Grade 2

Using informal units
  Grade 2

Grid papers
  Grade 3

Area problem solving
  Grade 3

Using informal units
  Grade 4

Area of Squares and Rectangles
  Grade 4

Units of measurement for area
  Grade 4

Area problem solving
  Grade 4

Area problem solving
  Grade 5

Area of Squares and Rectangles
  Grade 6

Area problem solving
  Grade 6

Area of Squares and Rectangles
  Grade 7

Area of Triangles
  Grade 7

Area of a Parallelogram
  Grade 7

Area of a Rhombus
  Grade 7

Area of Trapezoids
  Grade 7

Area of a Circle
  Grade 7

Area of a Sector
  Grade 7

Regular shapes
  Grade 7

Using informal units
  Mixed Grades

Area of Squares and Rectangles
  Mixed Grades

Area of Triangles
  Mixed Grades

Area of a Circle
  Mixed Grades