Lesson Plan
Curated OER

Identify Polygons: Algebra/Geometry Institute

For Teachers 8th
Eighth graders classify geometric figures.  In this polygon lesson, 8th graders identify given geometric figures.  They compare and contrast different polygons.  Students name line segments, identify parallel lines, and...
Lesson Plan
Texas Instruments

Points, Lines, and Planes

For Teachers 9th - 12th Standards
Students solve problems dealing with points, lines and planes. In this geometry lesson, students differentiate between parallel lines and planes. They find the intersection of lines and planes.
Lesson Plan
Curated OER

Napolean Triangle

For Teachers 9th - 11th
Learners investigate the Napoleon triangle theory. In this polygon lesson plan, students  differentiate between the boundary points, interior and lattice point of a polygon. They apply concepts of equilateral triangles to solve...
Lesson Plan
Curated OER

Let's Play Mathematical Baseball

For Teachers 3rd - 5th
Students explore the concept of spelling geometric terms and words with number prefixes. In this spelling geometric terms and words with number prefixes lesson, students play a game of baseball. Students spell words correctly to advance...
Lesson Plan
Curated OER

Right Triangles

For Teachers 4th - 8th
Learners classify triangles and make connections regarding angle measurements and attributes of acute, right, and obtuse triangles. They listen to teacher define and explain triangles. Everyone imagines a place where a broken wing for a...
Worksheet
Curated OER

Rotational Symmetry

For Students 10th
In this rotational symmetry worksheet, 10th graders identify and compare 10 different figures illustrated on the sheet. They write the order of rotational symmetry seen in each figure as compared to the others. They also define an object...
Worksheet
Curated OER

Compare Area and Perimeter of 2D Shapes

For Students 5th - 6th
In this area and perimeter worksheet, students compare area and perimeter, determining which shapes has the greater perimeter or area. A reference web site is given for additional activities. 
Activity
Exploratorium

Laser Jello

For Teachers 7th - 10th
The concepts of refraction and reflection gel with your physical science class during this colorful exploration. Shining lasers through Petri-dish-shaped gelatin desserts, they will notice how the light travels and bounces off the sides....
Worksheet
Curated OER

Lengths, Areas and Shapes - Week 9

For Students 12th - Higher Ed
In this lengths, areas and shapes worksheet, students explore overlapping and non-overlapping patterns. They identify the number of objects in a pattern, determine how the pattern may be folded to create additional patterns, and...
Lesson Plan
Curated OER

3-D Diorama

For Teachers 5th - 6th
Students view examples of 3-D art. The teacher demonstrates folding paper in half, cutting out shapes, and gluing 3-D figures onto the diorama. Students create their own diorama. Student dioramas are displayed for review and critique.
Worksheet
Curated OER

Match Game: Enrichment

For Students 4th - 5th
In this solid figures worksheet, students choose a shape from the box that fits the bar graph totals for the faces, edges, and vertices. Students then complete the last bar graph using the one unused shape.
Lesson Plan
Curated OER

Plane Figures

For Teachers 5th
Fifth graders create polygons requested by their teacher. In this polygons lesson, 5th graders watch a video and listen to a song about polygons. Then, students take turns labeling various polygons and practice making polygons.
Lesson Plan
Curated OER

Geometric Solids

For Teachers K
Students identify and create simple geometric shapes and describe simple spatial relationships. Through discussion, hands-on activities and show and tell, they identify geometric solids in real life and create graphs of commonly found...
Worksheet
Curated OER

Cubes and Cylinders

For Students 1st - 3rd
In this geometry worksheet, learners identify cubes and cylinders by coloring a given number of each shape red, green, blue, or yellow.
Worksheet
Curated OER

Working in 3-D Sudoku

For Students 7th
In this geometric shapes worksheet, 7th graders solve and complete 8 different problems that include working in a 3-D sudoku puzzle. First, they determine the area of a circle of a sphere to the nearest tenth. Then, students determine...
Worksheet
Curated OER

Polyhedra Book

For Students 9th - 12th
In this math activity, students are asked to read the book that focuses upon the creation and explanation of three dimensional shapes.
Worksheet
Curated OER

Area and Perimeter of Various Shapes

For Students 5th - 6th
In this area and perimeter worksheet, students find perimeter and area of 6 given shapes. An answer key and website reference are included.
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 lesson, students work on a two-question assessment embedded in the plan. The...
Worksheet
Curated OER

Math Club #24: Magic Shapes

For Students 7th
In this magic shapes activity, 7th graders work in groups to solve 9 magic square puzzles requiring logic and problem solving.
Lesson Plan
Curated OER

Trace a Face

For Teachers 1st - 2nd
Students find two dimensional shapes in three dimensional figures. They determine the shapes that make up the faces of three dimensional figures of common classroom objects such as crayon boxes.
Lesson Plan
Curated OER

Pass It On

For Teachers 5th
Fifth graders participate in a class activity that helps them learn some geometric terms along with their definitions. They describe relationships between two and three-dimensional shapes and analyze attributes and properties of...
Worksheet
Curated OER

Kite Shape with Primary Lines

For Students 1st - 2nd
For this writing worksheet, students use the kite shape with primary writing lines for any story writing or poetry writing purpose. There are no directions.
Organizer
Curated OER

Net (Triangular Pyramid)

For Students 3rd - 8th
In this 3-D folding objects worksheet, students cut out the model to fold and create a triangular pyramid. No instructions are included.
Worksheet
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K12 Reader

The Art of M.C. Escher

For Students 4th - 5th Standards
Show your class one way in which art and math are related by teaching them about M.C. Escher. Class members read a brief passage and then respond to five related questions.

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