Lesson Plan
Curated OER

Area And Perimeter Using Pentominoes

For Teachers 3rd
Third graders engage in an enrichment lesson exploring the concepts of area and perimeter. They construct new pentominoes that are 3 times the size of normal ones and then identify the area and perimeter measurements. They then create a...
Lesson Plan
Curated OER

Punch Patterns

For Teachers 5th
Fifth graders duplicate patterns, guess pattern results and identify the symmetries created. They are given an instructional handout, 5th graders replicate the patterns demonstrated by folding the paper and punching the appropriate...
Lesson Plan
Curated OER

Triangle Inequality

For Teachers 4th - 6th
Students discover that the sum of the lengths of any two sides of a triangle must be greater than the third side. They are shown how a triangle is formed using three strips such as that the triangle is seen inside the strips.
Lesson Plan
Curated OER

Shadow Casting

For Teachers 8th
Eighth graders use a meter stick that is placed on a horizontal surface and an object is moved along it so that the shadow length can be measured at different distances from the light source. They solve real-world problems involving...
Lesson Plan
Curated OER

Direct, Inverse, And Joint Variation

For Teachers 9th - 12th
High schoolers engage in a instructional activity that has them practice solving equations using multiplication and division. They practice solving problems using the properties needed and then students practice changing word problems...
Lesson Plan
Curated OER

Art or Junk? Discovering the Triangle Inequality

For Teachers 6th
Middle schoolers study the triangle inequality. They will identify, compare, and analyze attributes of two and three-dimensional shapes. Then they develop vocabulary to describe the attributes. They also use manipulatives to analyze the...
Lesson Plan
Curated OER

Shapes from Shapes

For Teachers K
Geometric shapes are really cool. Examine triangles, quadrilaterals, trapezoids, rhombuses, parallelograms, pentagons, and hexagons with your class. They draw large shapes and small shapes then compare them to understand their shapely...
Worksheet
Curated OER

Transformations

For Students 7th - 10th Standards
In this transformations worksheet, pupils draw the transformations of the triangles and parallelograms in graphs. They complete four drawings.
Lesson Plan
Curated OER

Quadrilateral Clues

For Teachers 4th - 5th Standards
Fourth and fifth graders work in pairs  explore quadrilaterals. In this problem-solving lesson plan, learners participate in hands-on activities that require them to identify, describe, compare, and classify quadrilaterals. This is...
Lesson Plan
Curated OER

Attributes of Polygons: Stretchy Shapes

For Teachers 4th
Fourth graders use dancing methodology in a polygon and shape activity. For this shape and dance lesson, 4th graders discuss shapes in dance, math, and everyday life. Students use dancing activities to recognize and analyze shapes.
Lesson Plan
Curated OER

Polygons in Symmetry: Animal Inventions

For Teachers 4th
Fourth graders use polygons to create animal figures with symmetry. In this polygons and symmetry lesson, 4th graders create a symmetrical animal collage by cutting and gluing geometric shapes and figures from math activities.  
Lesson Plan
Curated OER

Isosceles Triangle Theorem

For Teachers 8th - 9th
For this geometry worksheet, young scholars differentiate between isosceles and regular triangles. They calculate the area and perimeter of the triangle. There are eleven questions with an answer key.
Lesson Plan
Curated OER

Splitting the Penstock

For Teachers 8th - 11th
Students investigate the best way to calculate the measurements of an area. In this geometry lesson, students relate a large circle to a cylinder and its measurements. They use PVC pipes to gain hands on experience as they calculate the...
Lesson Plan
Curated OER

Roundup Shapes

For Teachers K
Shapes are all around us! Kindergartenrs identify shapes in their world and guess the shape being described. They participate in a shape hunt.
Lesson Plan
Arizona State University

Roundup Shapes

For Teachers K - 1st Standards
Let's study 2-D shapes! Young mathematicians compare and classify shapes according to attributes. They evaluate shape riddles and predict the shape being described. Here is the website where you can find the...
Lesson Plan
Curated OER

Building Sets of 13 and 14

For Teachers Pre-K - 1st
Compose and decompose sets of 13 and 14 and compare sets of each with your little learners. They use objects to construct sets of 13 and 14, record their answers, and compare sets in several different ways.
Lesson Plan
Curated OER

Volume and Surface Area

For Teachers 5th - 6th
Students explore volume and surface area. In this math activity, students fill boxes with cubes to identify the volume of the boxes. Students discuss area.
Lesson Plan
Curated OER

Special Education Plan

For Teachers 4th - 5th
Special needs students practice completing everyday tasks such as organizing a day plan, reading a clock and completing simple math problems. They define the proper learning techniques for their disorder and utilize props in...
Lesson Plan
Curated OER

The Truth About Triangles And Proofs

For Teachers 9th - 12th
High schoolers engage in a lesson that is about the classification of triangles and the mathematical proofs involved in working with them. They work on a variety of problems that are created by the teacher with the focus upon the...
Worksheet
Curated OER

Logical Relationship of Postulates & Theorems

For Students 10th - 12th
For this postulates and theorems worksheet, students explore a concept map containing information about angles and sides, alternate interior angles, and diagonals of a parallelogram.  They use the concept map to prove theorems...
Lesson Plan
Curated OER

Regular Pyramids

For Teachers 10th
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid.  The one page worksheet contains two multiple choice questions.  Answers are included. 
Worksheet
Curated OER

Properties of Quadrilaterals

For Students 9th - 11th
In this properties of quadrilaterals worksheet, students use the properties of quadrilaterals to find the perimeter, angle measurement or length of a missing side of a given polygon. Examples and explanations of the properties are...
Lesson Plan
Curated OER

Tantalizing Tangrams: What Are Transformations?

For Teachers 4th - 6th
Students use the Internet to learn about transformations and tessellations.  In this geometry lesson, students use the Internet to define the meaning of reflections, translations, rotations, glide reflection and symmetry. ...
Worksheet
Curated OER

Regular Pyramids

For Students 10th
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid.  The one page worksheet contains a combination of three multiple choice and free response questions.  Answers are...

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