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Lesson Plan
Curated OER

Tangram Tantrums

For Teachers 4th - 6th
Students discuss tangram vocabulary, and act out slide, flip, and turn. They observe tangram puzzles on a web page, and solve their own tangram puzzles.
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Worksheet
Curated OER

Circles, Cylinders, Cones and Spheres

For Students 4th - 5th
In this comparing geometric figures worksheet, students continue patterns and observe circles. In this problem solving worksheet, students answer seven questions.
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Lesson Plan
Curated OER

Surface Area of Pyramids

For Teachers 9th - 12th
Students identify the surface area of pyramids and other polygons. In this geometry lesson, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the surface area,
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Lesson Plan
Curated OER

Internet Field Trip on Fractions and Geometry

For Teachers 2nd - 4th
Students take an Internet field trip to research fractions. ESOL strategies include using pattern block manipulatives and pairing ESOL and non-ESOL students on computers.
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Lesson Plan
Curated OER

Investigating Quadrilaterals

For Teachers 4th
Fourth graders discuss the various attributes of quadrilaterals. In groups, they use the attributes to sort quadrilaterals into different classes and a hierarchy. They review the new vocabulary and attributes with a partner to end the...
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Lesson Plan
Curated OER

The Search for Pythagoras' Treasure

For Teachers 8th - 10th
Students identify and define properties of triangles. In this geometry lesson, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
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Lesson Plan
Curated OER

Lines, Segments, and Rays

For Teachers 5th
Fifth graders use their arm, toothpicks, and marshmallows to create lines, segments, and rays. In this lines, segments, and rays lesson plan, 5th graders learn how these appear on a plane.
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Lesson Plan
Curated OER

Play Dough Day

For Teachers 12th
Twelfth graders build a model of the following figures with the base from column I and the cross-section from column II. Draw the base with labeled axes on the graph paper and construct the figure on top of the base with the play dough...
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Lesson Plan
Curated OER

Identifying Lines of Symmetry

For Teachers 8th - 10th
Students calculate the lines of symmetry using polygons. In this geometry lesson, students graph, compare and estimate using collected data. They identify different attributes to the polygons based on their sides.
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Lesson Plan
Curated OER

Area of Complex Figures

For Teachers 5th
Fifth graders use formulas for calculating areas of squares and rectangles to find area of complex figure, compare their own ideas with their classmates' ideas, and recognize that there are multiple methods for finding area of complex...
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Lesson Plan
Curated OER

Does the Area of the Quadrilateral Change?

For Teachers 7th
Seventh graders complete activities to further their understanding of area formulas. In this area instructional activity, 7th graders watch as the teacher uses Polystrips to model parallelograms. Students find the area of a rectangle and...
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Lesson Plan
Curated OER

Incredible Edible Bridges

For Teachers 7th - 10th
Students create a bridge using engineering and geometric concepts. In this geometry lesson, students identify the missing measures of polygons sides and angles. They work together to solve real life situation using problem solving skills.
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Lesson Plan
Curated OER

Review Geometry Week

For Teachers 5th
Fifth graders participate in a review game of geometry topics. In this geometry lesson, 5th graders use the "Eggspert" interactive classroom game system to review the geometry skills taught that week. Students work in teams to complete...
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Lesson Plan
Curated OER

Slope Right Up

For Teachers 6th - 8th
Students use triangles to find the length and slope of each side. After connecting the vertices, they add points based on their specific instructions. They use the Pythagorean Theorem to complete a worksheet to end the lesson plan.
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Lesson Plan
Curated OER

Equilateral Triangles

For Teachers 4th - 5th
Students examine the attribute of equilateral triangles. In this equilateral triangle lesson, students examine a number of paper triangles to determine how they are classified. They determine how triangles are depicted in Navajo rugs.
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Lesson Plan
Curated OER

Navy Sail Design

For Teachers 9th - 12th
Learners use the Pythagorean Theorem to explore sailboat design. In this Pythagorean Theorem lesson, two sides of a triangular sail are measured, and the theorem is used to calculate the third side. A worksheet, bulletin board design,...
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Lesson Plan
Curated OER

Fractals

For Teachers 10th - Higher Ed
Pupils explore the concept of fractals. In this fractal instructional activity, students use applets to explore Koch's Snowflake, Sierpinski's Triangle, and other fractals. Pupils develop these concepts through exploration and teacher...
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Lesson Plan
Curated OER

Building Tetrahedral Kites

For Teachers 6th - 8th
Students work together to build tetrahedral kites. They must follow directions and the provided materials. They discover the engineering concepts needed to make the kite.
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Lesson Plan
Curated OER

Hurricane Tracking

For Teachers 5th - 8th
Students access the Internet to find information on current hurricanes. They get locations, speeds, and air pressures and then plot the location of the hurricane on a hurricane-tracking map. They also access the FEMA website to solve...
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Lesson Plan
Curated OER

Directing Me

For Teachers 1st
First graders practice the language of directions and positions in this unit. They follow sequences in which they rotate their bodies and other objects through quarter and half turns while participating in games.
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Lesson Plan
Curated OER

Let's Explore the World of Triangles and Quadrilaterals!

For Teachers 2nd
Second graders explore the features of triangles and quadrilaterals. In this lesson on triangles and quadrilaterals, 2nd graders rotate with their group to five different activities all exploring a different aspect of geometry.
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Lesson Plan
Curated OER

An Introduction to Quadrilaterals

For Teachers 6th - 10th
Students explore different types of quadrilaterals. Students define the terminology used with quadrilaterals. They create particular quadrilaterals based on specific characteristics of the quadrilaterals using an online tool.
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Lesson Plan
Curated OER

Hexagon Island

For Teachers 9th - 12th
Students identify different polygons. In this geometry lesson, students name polygons using the number of sides. They calculate distance and slopes using the correct formula.
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Lesson Plan
Curated OER

Diagonals to Quadrilaterals II

For Teachers 8th - 10th
Students identify the properties of different polygons. In this geometry lesson, students find the slope of a line and calculate the distance between two lines. They differentiate between similar and congruent polygons.