Lesson Plan
Curated OER

Simson Line

For Teachers 9th - 12th
Stuednts identify triangles for the Simson Line. In this geometry lesson plan, high schoolers solve triangular problems using the properties of triangles.They differentiate between the height, congruency and similarity.
Lesson Plan
Curated OER

Circle Packing

For Teachers 9th - 10th
Students identify different parts and properties of circles. In this geometry lesson, students identify the radius, diameter, semicircle and inscribed angle of a circle. They identify the tangent lines to a circle.
Lesson Plan
Curated OER

Light Bounce

For Teachers 9th - 11th
Pupils solve problems involving triangles. In this geometry lesson, students apply properties of triangles to find the missing angles and sides. They identify angles of parallel lines cut by a transversal.
Lesson Plan
Curated OER

Classifying Transformations

For Teachers 7th - 9th
Students analyze different polygons by shapes and sides. For this geometry lesson, students differentiate between similar and congruent polygons. They name the different polygons based on the number of sides.
Lesson Plan
Curated OER

Power of a Point

For Teachers 9th - 11th
Learners solve problems by finding the radius or diameter. In this geometry lesson, students identify the tangent line of a circle and use properties of circles to find the radius. They relate circles to the real world.
Lesson Plan
Curated OER

Hexagon Island

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

Square Graphs

For Teachers 7th - 11th
Students identify the different properties of quadrilaterals. In this geometry-lesson, students define parallel sides and diagonals of polygons as they compare to a quadrilateral. They identify the methods to find the angles in a...
Lesson Plan
Curated OER

Line, Ray, Segment

For Teachers 9th - 12th
High schoolers define vocabulary words. In this geometry lesson, students identify the graph as a line, ray or segments. They understand the properties of each and calculate the distance on a number line. 
Lesson Plan
Curated OER

Perpendicular Lines

For Teachers 9th - 10th
Learners differentiate between parallel and perpendicular lines. For this geometry lesson, students identify the different angles created by perpendicular lines and parallel lines. They name the angles that are form when parallel lines...
Lesson Plan
Curated OER

Soccer Problem

For Teachers 9th - 12th
Students solve problems with triangles. In this geometry lesson, students use the properties of triangles to solve problems. They identify the median, altitude and side vs angle relationship.
Lesson Plan
Curated OER

Angle Bisectors

For Teachers 9th - 12th
Students identify different angles. In this geometry lesson, students identify different properties of triangles. They find the altitude, median and angle bisector.
Lesson Plan
Curated OER

Isosceles Triangle Investigation

For Teachers 9th - 12th
Students solve problems with isosceles triangles. In this geometry lesson, students identify and use the properties of triangles to solve their problems. They find the median, altitude, and angles to the triangles.
Lesson Plan
Curated OER

Median

For Teachers 9th - 11th
Students solve problems involving triangles. In this geometry lesson, students use the properties of triangles to find the angles and side. They identify the median and altitude of the triangle.
Lesson Plan
Curated OER

Mirror Tool

For Teachers 9th - 12th
Students define properties of polygons. In this geometry lesson, students differentiate between similar and congruent polygons. They identify and use the properties of solids to solve problems.
Lesson Plan
Curated OER

Light Beam

For Teachers 8th - 10th
Students measure and convert between units. For this geometry lesson, students investigate through measurements of distances. They relate the properties of circle to solving problems with radius, diameter and area.
Lesson Plan
Curated OER

Volumes of Prisms and Cylinders

For Teachers 8th - 10th
Learners calculate the volume of prisms and cylinders. In this geometry activity, students are give part of the formula, and must calculate the missing parts. They use 80% accuracy for their dimensions.
Lesson Plan
Curated OER

If You Can’t Stand the Heat

For Teachers 9th - 12th
Students design and build their own solar cooker. In this math lesson, students determine the relationship between the angles of the sun, reflection and cooking time of the solar cooker. They test their project, collect data and...
Lesson Plan
Curated OER

U Boat Hunt

For Teachers 10th - 12th
Students recognize patterns and sequences in numbers. In this geometry lesson, students create rules to define the sequences and patterns they obsere. They translate coded messages as they dicuss navigational terms.
Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 9th - 11th
Students solve problems using the Pythagorean Theorem. For this geometry lesson, students identify the sides and angles of a right triangle. They find the different trigonometric ratios and solve using sine, cosine and tangent.
Assessment
Concord Consortium

Three Rubber Bands

For Students 7th - 12th Standards
Stretch your mind about triangles. Given a triangle, scholars consider a smaller triangle formed when they stretch three rubber bands from each vertex to the opposite side. They determine the ratios of the areas and perimeters of the...
Lesson Plan
Curated OER

Now You See Me, Now You Don't

For Teachers 2nd
Second graders develop an awareness of the power of their minds to work with visual images. All the activities in this unit help strengthen visualization that is an important tool or process in Geometry.
Lesson Plan
Curated OER

Finding The Center Mass of a Triangle

For Teachers 9th - 10th
Students calculate the center mass of a triangle. In this geometry lesson, students use the median to find the center mass. They discuss the different characteristics of triangles and their center of mass.
Lesson Plan
Curated OER

Unit Perimeters and Areas

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