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Lesson Plan
Curated OER

The Corner Problem

For Teachers 11th - Higher Ed
Students explore the concept of the corner problem. In this corner problem lesson, students use the TI-NSpire to determine the maximum length a rod can be and still pass horizontally around a corner. Students use similar triangles to...
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Lesson Plan
Curated OER

A Lesson on the Root Spiral

For Teachers 9th - 10th
Students create lines and shapes with a compass and a straight edge. In this geometry lesson, students investigate square roots, irrational numbers and spirals. They explore nature to see the shapes representing mathematics and geometric...
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Lesson Plan
Curated OER

Special Right Triangles

For Teachers 9th - 10th
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
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Lesson Plan
Curated OER

Exploring Geometric Mean

For Teachers 8th - 10th
Students solve problems using geometric means. In this geometry lesson, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
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Lesson Plan
Curated OER

Exploring Geometric Mean

For Teachers 8th - 10th
Student identify the solution using geometric mean. For this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
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Lesson Plan
Curated OER

Can You Make a Hole in One?

For Teachers 8th - 11th
Young scholars relate miniature golf to reflection of an image. In this algebra instructional activity, students collect and graph data as they study linear equations. They apply properties of graphing to solve real life scenarios.
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Lesson Plan
Curated OER

Surface Area of Cones

For Teachers 9th - 12th
Students find the surface area of cones. In this geometry lesson, students calculate the dimensions of each three-dimensional shape and use the correct formula to solve the problem. They relate concepts of cones to the real world.
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Lesson Plan
Curated OER

Surface Area of Pyramids

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

The Overlooked Regular Pentagon

For Teachers 10th
Tenth graders discuss the history of geometry as it relates to pentagons. In this geometry lesson plan, 10th graders solve problems of a pentagon inscribed inside of a circle using ratio. They review other properties for shapes of...
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Lesson Plan
Curated OER

Optional Laboratory: Measuring Tree Heights

For Teachers 6th - 8th
Students work together to measure tree heights. They make predictions on what they believe the calculations are and answer questions during the experiment. They share their results with the class.
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Lesson Plan
Curated OER

Gridding a 2 x 2 Meter Unit

For Teachers 6th - 8th
Students use the internet to examine what happens at an archeological dig site. In groups, they practice measuring a 2x2 meter square unit and gridding it out as an archeologist would do. They review the possible solutions at the end of...
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Lesson Plan
Curated OER

Hexagoning the Circle

For Teachers 6th - 9th
Students explore similarity to see that the area of a circle should be a constant times the square of its radius. Students create a hexagon. Students share their designs with the class.
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Lesson Plan
Curated OER

Vectors

For Teachers 11th - 12th
Students differentiate distance and displacement. In this physics lesson, students use formulas to calculate for displacement. They draw vectors using the grid.
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Lesson Plan
Curated OER

Unit Perimeters and Areas

For Teachers 9th - 11th
Students use Geometers SketchPad to find the area and perimeter of several shapes. For this geometry lesson, students determine area of rectangles and progress through irregular polygons. None of the referenced worksheets are included...

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