Lesson Plan
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Investigating Pythagorean Triples

For Teachers 9th - 10th
Students investigate and solve Pythagorean triples. In this geometry lesson, students find the missing sides and angles of a right triangle. They graph right triangles and move the sides around to create different angles.
Lesson Plan
Curated OER

Investigating the Pythagorean Triples

For Teachers 9th - 10th
Students investigate the Pythagorean triples. In this geometry lesson plan, students solve for different parts of a right triangle. They identify the missing side or angle using the pythagorean theorem.
Lesson Plan
Curated OER

Who's In The Fact Family?

For Teachers Pre-K - 2nd
Students study related addition and subtraction facts. In this math lesson, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.
Lesson Plan
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Learning about Shapes with Tangrams and the Net

For Teachers 1st - 5th
Students use tangrams, student literature, and Websites to explore shapes.
Lesson Plan
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Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Students investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
Lesson Plan
Curated OER

Investigating Trigonometric Ratios Through Similar Right Triangles

For Teachers 9th - 10th
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
Lesson Plan
Curated OER

Investigate the Rigid Motions of Reflection, Rotation, Translation, and Dilation

For Teachers 7th - 8th
Students investigate the rigid motions of reflection, rotation, translation, and dilation. This investigation be accomplished through classroom instruction and exploration using Geometer's Sketchpad.
Lesson Plan
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Similar and Congruent Triangles

For Teachers 2nd - 4th
Students create and classify different types of triangles using an online geo-board. They explore the concepts of similar and congruent as they discover how to draw similar and congruent triangles.
Worksheet
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Rotations and reflections

For Students 4th - 8th Standards
In this rotations worksheet, students complete problems having to do with shapes and their rotations, reflections, symmetry, translations, and more. Students complete 6 problems.
Lesson Plan
Pennsylvania Department of Education

Tetrominoes and Translations

For Teachers 7th - 9th
Students explore geometry by participating in a pattern identification activity. In this tetrominoes lesson, students define the characteristics of congruent and symmetrical shapes. Students practice translating shapes across quadrants...
Lesson Plan
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Area of Rectangles

For Teachers 7th
Seventh graders review the concept of finding the areas of a rectangle. This instructional activity uses the classroom as a real life application for the formula of area. They measure classroom in order to compute the area.
Lesson Plan
Beacon Learning Center

Perfect Polygons

For Teachers 4th - 5th Standards
Don't worry if you do not have the mentioned textbook; there is enough material here for you to carry out a pertinent polygon plan. After introducing your class to various polygons and the prefixes that help identify them, hand out...
Worksheet
Curated OER

Transformations and Translations

For Students 7th - 8th Standards
In this transformations/translation worksheet, students draw transformations based on shapes and vectors of given translations. A reference web site is given for additional activities.
Worksheet
Curated OER

Effect of Transformations on Coordinates

For Students 9th - 10th
In this effect of transformations on coordinates worksheet, students determine the coordinates of 4 geometric shapes on a grid after a given transformation.
Lesson Plan
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Polydron Fun

For Teachers 9th - 11th
Students investigate nets as they relate to volume and area. In this geometry lesson, students use nets as a visual to deepen their understanding of surface area and volume of objects. They make conjectures about different objects and...
Lesson Plan
Curated OER

Surface Area and Volume

For Teachers 3rd - 4th
Students are introduced to the notion of surface area and volume, learn the terminology used with surface area and volume and have experimented with the surface area and volume of different prisms.
Lesson Plan
Curated OER

Angle Exploration and Classification

For Teachers 4th - 7th
Students compare and contrast angles and identify them as acute, obtuse, right, or straight angles. They create rays and angles using uncooked spaghetti, read and discuss key vocabulary terms, and complete a variety of geometry worksheets.
Lesson Plan
Curated OER

Shaping Up with Nature at Black Bayou Lake

For Teachers 1st - 2nd
Students visit a local lake refuge and identify shapes they find in nature. They take pictures of the various shapes and use KidPix to draw shapes around the shapes in the pictures. They watch a slideshow of all the shapes found by their...
Lesson Plan
Curated OER

Beautiful Butterfly Tiles

For Teachers 3rd
Third graders create a butterfly drawing that includes the elements of art and principles of design. They create artwork that can be made into ceramic tiles to be installed around the classroom doorways in our new addition.
Lesson Plan
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What are the Kinds of Triangles?

For Teachers 5th
Fifth graders classify triangles. For this triangle lesson, 5th graders learn about the characteristics that make up a triangle. They are instructed through video, PowerPoint slides, and teacher-led demonstrations.
Lesson Plan
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Powerful Polygons

For Teachers 2nd - 4th
Students scan the classroom to find different common shapes. They listen as the teacher defines polygon and regular polygon. The teacher demonstrates regular polygons via the Internet and the "Math is Fun" web site. Students go outside...
Lesson Planet Article
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Creating 3-D Shapes in Art

For Teachers 2nd - 4th
By learning techniques for drawing 3-D shapes, students can create realistic drawings.
Lesson Plan
Curated OER

Rectangles and Trapezoids in the Coordinate Plane

For Teachers 7th - 9th
Students determine the missing vertices of quadrilaterals. In this rectangles and trapezoids instructional activity, students examine the characteristics of quadrilaterals. They identify the missing vertices of a quadrilateral on a...
Lesson Plan
Curated OER

Quandaries, Quagmires, and Quadrilaterals

For Teachers 3rd - 5th
Students classify, flip, slide, and turn a quantity of quadrilaterals.

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