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Lesson Plan
Curated OER

Visualizing Multiplication

For Teachers 3rd - 5th
Upper graders represent multiplication of a two-digit number by a two-digit number as the area of a rectangle with dimensions of the two factors. They find patterns for the number of different base ten blocks in a rectangle representing...
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Lesson Plan
Curated OER

Finite Geometry

For Teachers 9th - 10th
Students solve for the area and perimeter of polygons. In this geometry instructional activity, students identify repeated patterns and create formula to solve problems. They make conjectures and prove hypotheses.
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Lesson Plan
Curated OER

Cut It Out!

For Teachers 8th - 11th
Students calculate the surface area of polygons. In this geometry activity, students use spacial reasoning to find the answer to their problem. They analyze solids and create formulas to estimate the measurements of the area.
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Worksheet
Curated OER

Area of Squares, Rectangles and Parallelograms

For Students 10th
In this geometry worksheet, 10th graders define polygon shapes. They calculate the area of each shape given the sides of the shapes. There are 14 questions with an answer key.
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Lesson Plan
Curated OER

Surface Area of Rectagular Prisms

For Teachers 6th
Sixth graders investigate the area of polygons. For this geometry lesson, 6th graders calculate area of prisms using geometric formulas. They work with prisms and other rectangular shapes.
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Activity
Curated OER

Inscribing a Square in a Circle

For Teachers 9th - 11th Standards
Inscribing a square in a circle brings up a number of interesting geometry topics including triangle congruence and how to prove a quadrilateral is a square. This activity is followed up by finding the area of the square and determining...
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Lesson Plan
Curated OER

What a Square

For Teachers 3rd - 8th
Students examine the painting "Old Man With A Gold Chain" by Rembrandt. They identify geometric shapes in the painting, measure these shapes and compare the relationships of these measurements.
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Worksheet
Mt. San Antonio Collage

Circles

For Students 9th - 12th Standards
Don't circle around the topic, but get right to the center with tons of practice regarding circles in geometry. The note-incorporated worksheet provides guided practice through many topics such as central angles, inscribed polygons and...
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Lesson Plan
Curated OER

Exploring Areas of Irregular Polygons

For Teachers 9th - 12th Standards
Students solve for the area of different polygons. In this geometry lesson, students identify and differentiate between regular and irregular polygons. They use properties of irregular polygons to solve problems.
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Lesson Plan
Curated OER

Same Area and Perimeter

For Teachers 9th - 12th
Students identify the shapes of different polygons. In this geometry lesson, students identify the same area and perimeter in shapes. They use the correct formula for the correct shape.
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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 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

Strongest Polygon

For Teachers 9th - 12th
Students define and identify shapes by name. In this geometry lesson, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
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Lesson Plan
Curated OER

Area of Irregular Polygons

For Teachers 10th
In this geometry worksheet, 10th graders determine the area of irregular polygons.  The one page worksheet contains three problems.  Solutions are provided.
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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

Exploring Projective Geometry

For Teachers 7th - 8th
In this exploring projective geometry worksheet, students use computer software for instruction, then answer 9 questions about 3D drawings.
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Worksheet
Curated OER

Area and volume, Prisms and Pyramids

For Students 9th - 10th
In this geometry worksheet, learners solve for the volume and area of given polygons. They find the surface area and identify the different parts of the polygon. There are 10 questions.
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Lesson Plan
Curated OER

Interior Angles of Regular Polygons

For Teachers 9th - 12th Standards
Students investigate the interior angles of a triangle. In this geometry instructional activity, students create the formula to calculate the angles inside a triangle. They observe the total sum of a triangles angle on the navigator.
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Lesson Plan
Curated OER

Up For Change?

For Teachers 7th - 9th
Students explore similar objects. They participate in a series of hands-on, multimedia and online activities to examine how the edge length affects the angle measures, perimeters and areas of similar regular polygons. Students find the...
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Worksheet
Curated OER

Geometric Word Problems

For Students 10th
In this geometric figures worksheet, 10th graders solve and complete 11 different word problems. First, they find the area of a regular octagon with a given side. Then, students find the area of each shaded region. They also find the...
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Lesson Plan
Texas Instruments

Construction Regular Polygons

For Teachers 9th - 12th Standards
Learners investigate the process necessary to construct regular polygons. They explore the degree measures of the angles in a regular polygon. Using this information and technology in the form of Cabri Jr., your pupils will construct...
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Lesson Plan
Curated OER

Flip's Flag

For Teachers 5th
Fifth graders apply the symmetry and angle properties of polygons and use fractions to express the relationships between the areas of rectangles, squares, and triangles. They analyze various country flags and develop mathematical...
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Lesson Plan
Curated OER

Linear/Planar Geometry - Week 5

For Teachers 12th - Higher Ed
In this plane geometry worksheet, students combine the basis of plane geometry and linear problems to solve problems. They determine total surface area, the length of a line, and the sum of the edges of a three-dimensional figure. This...
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Unit Plan
Mathematics Vision Project

Module 5: Circles A Geometric Perspective

For Teachers 9th - 12th Standards
Circles, circles, everywhere! Pupils learn all about circles, central angles, inscribed angles, circle theorems, arc length, area of sectors, and radian measure using a set of 12 lessons. They then discover volume formulas through...
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Worksheet
Curated OER

Math Club Worksheet #2e

For Students 3rd - 5th
In this geometry worksheet, students practice solving 1 warm up equation involving the missing side of a rectangle. Students find the area of a given rectangle.