Lesson Plan
Curated OER

Surface Area with Polydrons

For Teachers 3rd - 4th
Students explore measurements by analyzing geometric shapes. In this surface area lesson, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students utilize...
Lesson Plan
Curated OER

Line and Shape Game

For Teachers 9th - 12th
Students play the "space-breaker" game, in which they are required to create a picture using shapes or lines called out to them) to reinforce the concept of geometric shape and line.
Lesson Plan
Curated OER

Three-Dimensional Figures

For Teachers 6th
Sixth graders explore three-dimensional objects. Using various objects found in the classroom, they identify faces, edges, and vertices of objects. Students create their own objects. They describe the polydron, telling the faces,...
Lesson Plan
Curated OER

Nature's Polyhedrons

For Teachers 9th - 12th
Students are introduced to polyhedrons through using straw models to explore geometric solids and constructing Christmas tree ornaments using Epsom salt crystals. Students will view interactive videos and investigate and retrieve...
Lesson Plan
Curated OER

Captain Invincible and the Space Shapes

For Teachers 1st - 2nd
Students identify geometric solids. In this geometric shapes lesson, students listen to the teacher read Captain Invincible and the Space Shapes  by Stuart J. Murphy. Students then visit a web site where they identify types of...
Interactive
Curated OER

Geometric Mean Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students find the measures of the side of a triangle. They use the Pythagorean Theorem to find the different parts of a right triangle. There are 10 questions with an answer key.
Lesson Plan
Curated OER

Measurement

For Teachers 7th
Seventh graders measure surface area. In this geometry lesson, 7th graders find the surface area of various geometrical shapes. Using a computer program, students compute the area of 2-D and 3-D shapes.  Students use...
Lesson Plan
Curated OER

Investigation-On the Surface

For Teachers 5th - 7th
Students compute the surface area of 3 geometric solids to determine the shape of package that would require the least amount of paper to wrap. In this geometry instructional activity, students work on a two-question assessment embedded...
Interactive
Curated OER

My Test Book: Geometry Skills 2

For Students 5th - 7th
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding geometry skills. Students may submit their answers to be scored.
Worksheet
Curated OER

Pentagonal Prism Net

For Students 4th - 5th
In this math worksheet, students create a geometric model by cutting, folding and pasting the tabs on this pentagonal prism net. There is no picture of what it should look like when finished.
Worksheet
Curated OER

Classifying Triangles

For Students 10th
In this classifying triangles worksheet, 10th graders solve 9 various problems that classify triangles into categories. First, they refer to the figure shown of an isosceles triangle with two line parallel. Then, students name the sides,...
Worksheet
Curated OER

Proving Triangles Congruent

For Students 10th
In this proving triangles congruent worksheet, 10th graders solve 4 different proofs for congruent triangles. First, they mark all congruent parts on each figure, then complete the prove statement and identify the postulate that can be...
Worksheet
Curated OER

Parallelograms

For Students 10th
In this parallelograms worksheet, 10th graders solve 8 different types of problems related to measuring various parallelograms. First, they use the figure, a parallelogram, illustrated at the top to solve each problem. Then, students...
Worksheet
Curated OER

Identifying Similar Triangles

For Students 10th
For this identifying similar triangles worksheet, 10th graders solve 5 different proofs related to similar triangles. First, they identify the similar triangles in each figure and explain why they are similar, using the information to...
Worksheet
Curated OER

Shape Matching Worksheet - Black and White

For Students K - 1st
In this geometry worksheet, students draw a line from each geometric shape shown on the left to the matching shape on the right side of the page. They work with plane figures such as a triangle, an oval, a rectangle, and a hexagon.
Worksheet
Curated OER

Names of figures

For Students 2nd - 3rd
In this shapes worksheet, students pick the correct names of the 2D shapes, and pick out the correct 2D shape. Students complete 4 problems total.
Interactive
Curated OER

My Test Book: Geometry

For Students 6th - 8th
In this online interactive math skills instructional activity, middle schoolers solve 10 multiple choice math problems regarding geometry skills. Students may submit their answers to be scored.
Lesson Plan
Curated OER

Math: Gears and Wheels

For Teachers 12th
Twelfth graders solve problems involving linear and angular speed. Using information about a compact disc, they solve the problem using multiple rates and conversion factors. Students also solve additional problems involving bicycle...
Worksheet
Curated OER

Rectangular Pyramid Net

For Students 4th - 5th
In this math worksheet, learners construct a model of a rectangular pyramid by cutting, folding and taping this math net. This is fairly small; teachers may wish to enlarge the page.
Worksheet
Curated OER

Second Grade Geometry

For Students 2nd
In this second grade geometry worksheet, 2nd graders answer 10 multiple choice questions about geometric shapes, with the answers available online.
Lesson Plan
Curated OER

What a View!

For Teachers 4th - 6th
Students examine two- and three-dimensional shapes and figures. Individually, they practice identifying the shape from various viewpoints. By completing this activity, they develop a spatial sense about how figures and shapes are...
Lesson Plan
Curated OER

Our World of shapes

For Teachers 1st
First graders listen to Shapes and The Greedy Triangle to identify and describe examples of geometric shapes.  For this geometric shapes lesson, look for geometric shapes in real world places.  Students make a mobile of shapes...
Lesson Plan
Curated OER

Investigating Shapes in Our World

For Teachers 1st
First graders explore shapes. In this geometry instructional activity, 1st graders make shapes with geo-boards, use play-dough to make three-dimensional figures, and make a shape book using pre-cut shapes.
Lesson Plan
Curated OER

Rep Tiles

For Teachers 3rd
Third graders use pattern blocks of one shape at a time to try to create a similar shape. They compare the perimeter of the new figure with the perimeter of the original shape and look for a pattern. Students use the pattern to predict...