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Lesson Plan
Curated OER

Geoboard Squares

For Teachers 2nd - 3rd
Students create squares of different sizes on a geoboard. They find and describe a pattern. Students use the pattern to determine the number of squares possible on a 10-by-10 geoboard. They create squares with a horizontal base (and...
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Worksheet
National Council of Teachers of Mathematics

Perplexing Parallelograms

For Students 9th - 10th
In this geometry worksheet, young mathematicians divide a parallelogram into four, by choosing points along a diagonal.  Students calculate the area of each parallelogram and look for any patterns that may emerge.  The one-page worksheet...
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Lesson Plan
Curated OER

Intro To Quadrilaterals

For Teachers 1st - 3rd
Students engage in a lesson plan that is concerned with the concept of quadrilaterals and how they are used to create a rectangle for a door. They create a drawing of a quadrilateral while finding the sum of the angles. They practice...
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Lesson Plan
Curated OER

Shapes

For Teachers K
Students review basic shapes, such as circles, squares, triangles, and rectangles, find objects in those shapes in classroom, watch Clifford's Fun with Shapes video, practice reproducing four shapes, and rotate through four classroom...
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Lesson Plan
Curated OER

Shapes Activities and Lessons

For Teachers Pre-K - K
A fabulous lesson on identifying circles, triangles, squares, and rectangles awaits your students. They use large motor skills hopping from shape to shape, use visual and kinesthetic skills passing a ball of yarn between three people to...
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Worksheet
Curated OER

Attributes of Shapes

For Students Pre-K - 1st
There are five shapes for scholars to identify: rectangle, circle, square, trapezoid, and triangle. Although there isn't much here, consider projecting this as an all-class warm up. Ask kids to verbalize attributes of each shape before...
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Worksheet
Curated OER

Building Blocks of Geometry

For Students 9th - 11th
In this geometry activity, students answer questions about midpoints, distance, lines and segments. They are given different shapes and asked to calculate the angles, and sides of polygons.
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Lesson Plan
Curated OER

Finding Perimeter and Area

For Teachers 3rd - 5th
Geometers find the perimeter and area of rectangles. They discuss the definitions and characteristics of rectangles and squares. In groups, they use yarn to discover the perimeter of squares and rectangles. They count cubes to explore...
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Worksheet
Curated OER

Geometry Worksheet

For Students 10th - 12th
In this geometry activity, students find the area of four polygons. They compute the measure of an angle. Students find the length of the sides of a right triangle. They name one arc and find the measure of two arcs.
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Lesson Plan
Curated OER

Battle Shapes

For Teachers 5th
Fifth graders play Battleshapes which is a variation of Battleship with geometry. In this geometry lesson, 5th graders get a graph paper with four quadrants. They call out coordinate points and attempt to sink their opponents shapes. 
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Worksheet
Curated OER

Shape Definitions

For Students 4th - 6th
In this shapes definitions worksheet, students match a set of descriptions with their correct shape names, 10 total, then answer a set of 4 additional questions. Answers included on page 2.
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Lesson Plan
Curated OER

Math: a World of Symmetry

For Teachers 6th - 8th
Learners expand their knowledge of quadrilaterals and identify basic symmetrical forms. Over three weeks, they explore the math, application, and discussion of symmetry. After conducting Internet research, students create symmetrical...
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Worksheet
Curated OER

Going to the Dogs and Horsin' Around

For Students 4th - 5th
In these rectangle perimeter worksheets, students complete two worksheets for perimeter. Students answer four questions for each rectangular pen they create for a dog and horse pen.
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Worksheet
Curated OER

Forty Mental Math Angle Problems

For Students 10th - 11th
In this angle worksheet, students answer forty mental math questions divided into four problem sets.  These problems require students to remember angle facts and so simple calculations mentally.
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Lesson Plan
Curated OER

Properties of Special Parallelograms

For Teachers 9th - 10th
Young scholars identify properties of trapezoids. In this geometry lesson, students are put into groups and use computer programs to analyze polygons. They drag and move the shapes around as they make predictions.
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Lesson Plan
Curated OER

Squares

For Teachers Pre-K - K
Students identify shapes that are squares. In this square lesson, students identify the square items and then sing songs about squares.
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Worksheet
Curated OER

Lines of Slope

For Students 9th
In this lines of slope learning exercise, 9th graders solve and complete 40 various types of problems. First, they find the equation of the lines described and write in slope-intercept form. Then, students graph each equation. They also...
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Lesson Plan
Curated OER

Area and Perimeter of Rectangles

For Teachers 3rd - 5th
Discover the difference between area and perimeter. Learners are grouped in twos and threes and each group has one advanced/gifted learner to serve as the peer helper. They receive manipulatives to help them determine the area and...
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Lesson Plan
Curated OER

Area and Perimeter Review

For Teachers 8th - 10th
Students calculate the area and perimeter of different shapes. In this geometry activity, students name the different polygons based on their number of sides. They use the correct formula for each shape to calculate the area and perimeter.
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Lesson Plan
Curated OER

Geometry and Shapes

For Teachers 4th
Fourth graders are asked to name different shapes.Four to five students to share their answers with the class. The teacher leads the discussion in geometry about the properties associated with shapes.
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Lesson Plan
Curated OER

Properties of Special Parallelograms

For Teachers 8th - 10th
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
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Lesson Plan
Curated OER

The Honey Bee's Home

For Teachers K - 3rd
Students study honey bees by researching handouts and books. In this honey bee lesson plan, students make a comb out of polygons, learn about the 4 stages of insect development, and view how the hive hierarchy works.
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Lesson Plan
Curated OER

Shapes and Introduction to Geometry

For Teachers 2nd - 4th
Students make a quilt. In this geometry lesson, students discuss patchwork quilts and learn some different geometric shapes and patterns that are commonly used. Students explore designs with triangles and squares and then make their own...
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Lesson Plan
Curated OER

Geo-Critters (Geometry Critters)

For Teachers 2nd - 5th
Students read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Students create a geo-critter.