Lesson Plan
Government of Hong Kong

Areas and Volumes - 2D Shapes

3rd - 6th Standards
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to...
Worksheet
Curated OER

Area of 2D Shapes Homework

9th - 12th
In this geometry worksheet, students solve the area of 2D shapes starting with squares, rectangles, parallelograms, triangles, rhombi, trapezoids, circles, and ending with area of shaded regions. There are 20 questions.
Worksheet
Curated OER

2D and 3D Shapes

2nd - 4th
In this geometry worksheet, students draw 6 different shapes as requested by 6 specific directives in the circles provided. Students draw 2D and 3D shapes.
Worksheet
Curated OER

2D Shapes for sorting into groups

1st - 2nd
In this geometry worksheet, students cut out and sort nine shapes. Shapes have up to nine sides and angles. They can be sorted according to number of sides, angles or shapes with equal sides.
Worksheet
Curated OER

Compare Area and Perimeter of 2D Shapes

5th - 6th
In this area and perimeter worksheet, students compare area and perimeter of pairs of figures, determining which has either the greatest area or perimeter. A reference web site is given for additional activities. 
Worksheet
Curated OER

Three- and Two- Dimensional Geometry

7th
For this three- and two- dimensional geometry worksheet, 7th graders solve 12 various problems related to geometric shapes and measurement. They first use paper and a pencil to sketch the front, side, back, top and bottom views of each...
Lesson Plan
Curated OER

Ratios for Area and Volume

5th - 8th
In this ratios for area and volume worksheet, students solve problems where they find the ratios for problems of shapes dealing with area and volume. Students complete 4 problems.
Lesson Plan
Curated OER

Exploring Projective Geometry

7th - 8th
In this exploring projective geometry worksheet, students use computer software for instruction, then answer 9 questions about 3D drawings.
Worksheet
Curated OER

Review of 2D and 3D Figures

5th - 6th
In this 2 and 3 dimensional figures activity, learners determine whether given shapes are regular or irregular. A reference web site is given for additional activities.