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Lesson Plan
Curated OER

The Greedy Triangle

For Teachers 3rd - 4th
Students discuss figures with various numbers of sides.  In this geometry instructional activity, students are read The Greedy Triangle by Marilyn Burns, they participate in a class discussion of many sided figures and are...
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Lesson Plan
Curated OER

Drawing Regular Polygons

For Teachers 9th - 12th Standards
Learners investigate properties of regular polygons. In this geometry lesson, your class will use a graphing calculator and parametric equations to construct regular polygons and investigate the relationship between the measure of...
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Worksheet
Print and Practice

Triangles and Rectangles

For Students K - 2nd
In this triangle and rectangle activity, students color triangles red and rectangles blue in a given set of shapes. A reference web site is given for additional activities.
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Interactive
Curated OER

Customized Handwriting: the Square

For Students 1st
In this customized handwriting:  the square worksheet, 1st graders change style, font and text then print the worksheet to practice printing and color the picture.
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Worksheet
Curated OER

Polygons- Vertices and Sides

For Students 3rd - 4th
In this polygons worksheet, students name a set of 8 polygons, then state how many vertices and sides each has. Answers included on page 2.
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Worksheet
Curated OER

Hexagon: Print and Color

For Students Pre-K - 1st
In this word recognition worksheet, learners trace the word "hexagon", write the word independently, and color the picture of the shape.
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Worksheet
Curated OER

Octagon: Print and Color

For Students Pre-K - 1st
In this word recognition instructional activity, students trace the word "octagon", write the word independently, and color the picture of the shape.
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Worksheet
Curated OER

Pentagon: Print and Color

For Students Pre-K - 1st
In this word recognition worksheet, students trace the word "pentagon", write the word independently, and color the picture of the shape.
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Lesson Plan
Curated OER

Formula Determination

For Teachers 9th - 12th
Students derive a formula for the interior degrees in any convex polygon. In this geometric figure lesson, students determine the shapes of various polygons and the number of triangles formed. They use this information to derive the...
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Worksheet
Curated OER

Polygons

For Students 2nd - 4th
For this polygons worksheet, students name each polygon, and state how many vertices and sides each one has. Students do this for 8 different polygons.
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Worksheet
Curated OER

2D and 3D figures

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

Geometry: Cut, Construct and Think

For Teachers 5th - 8th
Learners explore polygons. In this geometry skills lesson, students complete an activity that requires them to solve geometry problems that involve polygons as they piece together geometric shapes. Learners analyze the shapes they create...
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Worksheet
Curated OER

Properties of Geometric Shapes: All, Some or None

For Students 4th
In this properties of geometric shapes worksheet, 4th graders write the words all, some or no to complete twelve statements about the properties of the shapes.
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Worksheet
Curated OER

Use Measurement

For Students 2nd - 4th
In this measurement lesson, students follow the instructions to draw a sandbox on a grid. Students also respond to 2 short answer questions regarding the area question.
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Worksheet
Curated OER

Find the 2D shape

For Students 2nd - 4th
In this 2D shapes worksheet, 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

Regular or Irregular Polygons

For Students 6th - 8th
In this geometry skills instructional activity, learners respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
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Worksheet
Curated OER

Regular or Irregular Polygons

For Students 3rd - 4th
In this polygons worksheet, learners decide whether each shape is a regular polygon or an irregular polygon. Students complete 6 problems.
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Lesson Plan
Curated OER

Cut, Construct and Think

For Teachers 4th - 5th
Students complete geometrical shapes construction activities. In this geometrical concepts lesson, students cut shapes from a worksheet to create a geometrical study activity. Students analyze their shapes and complete a table. Students...
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Worksheet
Curated OER

Geometric Shapes

For Students 1st - 3rd
In this geometric shapes activity, students respond to 4 multiple choice questions that require them to identify triangles, squares, and rectangles.
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Worksheet
Curated OER

Geometry

For Students K - 6th
In this geometry worksheet, students determine what if 6 different shapes are a circle, square, triangle or a rectangle. Students bubble in their answers.
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Worksheet
Curated OER

Identifying Geometric Shapes: Hexagon, Polygon, or Heptagon

For Students 5th - 6th
In this identifying geometric shapes worksheet, students mark 12 multiple choice pictures of shapes as hexagons, polygons or heptagons.
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Organizer
Curated OER

Triangle Worksheet: Cut, Construct and Think 1

For Students 6th
In this triangle learning exercise, 6th graders draw and cut out a triangle, cut it into three pieces, then arrange the pieces to make new shapes.
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Worksheet
Curated OER

Circles and Squares

For Students 2nd - 6th
In this circles and squares worksheet, students try to make a circle by only using straight lines and a square. Students follow 4 sets of directions.
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Lesson Plan
Curated OER

Folding to Make Shapes

For Teachers 2nd
Second graders identify different polygons and their attributes. In this geometry lesson, 2nd graders get to know polygons by studying the vocabulary and finding polygons in their classroom. They create these shapes and then find their...