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Lesson Plan
Government of Hong Kong

Areas and Volumes - 2D Shapes

For Teachers 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 determine the area...
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Worksheet
Curated OER

2D and 3D figures

For Students 3rd - 4th
In this 2D and 3D figure worksheet, students name different shapes and decide if they are polygons or not. Students complete 8 problems.
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Worksheet
Curated OER

Area of 2D Shapes Homework

For Students 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.
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Worksheet
Curated OER

Names of 2D Shapes

For Students 2nd - 3rd
In this 2D shapes worksheet, students fill in the blanks to name and describe the following four 2D shapes: circle, square, triangle and rectangle.
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Worksheet
Curated OER

2D Shape Sheet

For Students 3rd - 4th
In this polygons activity, students examine 20 different polygons that are quadrilaterals.  It is not clear what they are to do with them.
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Worksheet
Curated OER

Find the 2D shape

For Students 2nd - 4th
In this 2D shapes instructional activity, students find the rectangular prism, triangular prism, pentagon, and triangle. Students have 3 shapes to choose from in each of the 4 problems.
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Worksheet
Curated OER

2D and 3D Shapes

For Students 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.
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Interactive
Curated OER

Area of 2D Shapes Multiple Choice

For Students 7th - 10th
For this area worksheet, students compute the area of circles, parallelograms and rectangles.  This one-page worksheet contains 5 multiple-choice problems.  Answers are provided in this online worksheet.
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Worksheet
Curated OER

Geometric Shapes: Review of 2D and 3D Figures

For Students 5th - 6th
In this geometric shapes worksheet, students identify 4 drawings as polygons or not, 1 drawing as regular or not and then write the name of 3 solid figures.
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Worksheet
Curated OER

Area of 2D Shapes

For Students 9th - 12th
In this area worksheet, students commence solving for area of squares and rectangles, and continue to parallelograms and triangles, and continue again to rhombi and trapezoids and finish with circles, polygons, and shaded regions. There...
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Worksheet
Curated OER

2D Shapes (1)

For Students 3rd - 4th
In this shape recognition worksheet, students study each of the shapes and then write the names of the two-dimensional polygons on the lines.
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Worksheet
Curated OER

Polygon Shapes

For Students 2nd - 3rd
In this polygon worksheet, students study the various shapes and then name each of the two-dimensional shapes. Students write the shape names on the provided lines.
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Worksheet
Curated OER

Three- and Two- Dimensional Geometry

For Students 7th
In this three- and two- dimensional geometry activity, 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...
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Worksheet
Curated OER

Concave and Complex 2-D Shapes

For Students 3rd - 4th
In this concave and complex 2-D shapes worksheet, students study, analyze and determine and circle which shapes out of 6 are concave pentagons.
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Worksheet
Curated OER

Identifying Parallelograms

For Students 2nd - 3rd
In this identifying parallelograms worksheet, students look at the colorful shapes and identify the ones that have two pairs of parallel lines.
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Organizer
Curated OER

Area, Perimeter, Volume Formulas

For Students 9th - 10th
In this formulas worksheet, students write the area, perimeter, and volume formulas of 17 2D and 3D polygons.  Students list properties of various types of triangles and the metric conversions for metric units.
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Worksheet
Curated OER

Closure Activity for Square Numbers

For Students 9th
In this closure activity for square numbers worksheet, 9th graders evaluate if numbers are square numbers by determining if it can be modeled by a square (the shape) for 13 tasks.
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Lesson Plan
Curated OER

Ratios for Area and Volume

For Teachers 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.
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Lesson Plan
Curated OER

Exploring Projective Geometry

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