Worksheet
Curated OER

Quadrilaterals

For Students 9th - 10th
In this geometry worksheet, students identify the missing measures of rectangles and quadrilaterals. They use the properties of quadrilaterals to solve for the missing sides. There are 2 charts to be completed.
Interactive
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Quadrilaterals Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students identify the properties of quadrilaterals. they find the length of th sides and angles of quadrilaterals. There are 5 questions with an answer key.
Interactive
Curated OER

Rhombi and Squares Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students identify the missing parts of polygons. They use algebra to solve the equations using the rules of polygons. There are 5 questions with an answer key.
Interactive
Curated OER

Geometric Mean Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students find the measures of the side of a triangle. They use the Pythagorean Theorem to find the different parts of a right triangle. There are 10 questions with an answer key.
Worksheet
Curated OER

Trigonometry Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students solve word problems. They find the height and distance of triangular measurements. They identify missing angles using triangular properties. There are 10 questions.
Worksheet
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Arcs and Chords Homework

For Students 9th - 12th
In this geometry worksheet, students examine a circle with chords and apply formulas to solve for the missing segments or arc. There are 9 questions.
Interactive
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Arcs and Chords Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students answer questions about triangles using the correct properties. They find missing angles and sides of triangles. There are 15 questions with an answer key.
Worksheet
Curated OER

Angle Formulas

For Students 9th - 10th
In this geometry worksheet, students identify the different properties and characteristics of a circle. They use angle formulas to solve for the missing angles. There are 20 questions.
Worksheet
Curated OER

Discovering Euler’s Formula for Planar and 3D Figures

For Students 10th
In this Geometry worksheet, 10th graders investigate the number of regions, edges, and vertices of sixteen planar figures in order to discover Euler’s Formula.  The two page worksheet contains a chart for the results of the...
Lesson Plan
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Translations

For Teachers 9th - 10th
Students perform translations on different polygons. In this geometry lesson, students create figures that will be used as an assessment to represent transformation. They perform hands on creation and relate it to the real world.
Lesson Plan
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Reflections

For Teachers 9th - 10th
Pupils investigate image and pre-image. In this geometry lesson, students identify the reflection and rotation of different shape on a coordinate plane. They identify similarities and differences of image and pre-image of a reflection.
Lesson Plan
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Conjectures and Conclusions

For Teachers 9th - 10th
Students draw conclusions and make conjectures given a specific scenario. In this geometry lesson, students model real life scenarios using properties of triangles. They model number facts and explain why the outcome is what it is.
Lesson Plan
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Triangle Classification

For Teachers 9th - 12th
Students classify different types of triangles. In this geometry lesson, students identify and use properties of triangles. They differentiate between isosceles and equilateral triangles.
Lesson Plan
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Simson Line

For Teachers 9th - 12th
Stuednts identify triangles for the Simson Line. For this geometry lesson, students solve triangular problems using the properties of triangles.They differentiate between the height, congruency and similarity.
Lesson Plan
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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
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Hospital Locator

For Teachers 7th - 9th
Students apply properties of triangles to the real world. In this geometry lesson, students identify the median and angle bisectors of triangles. They plan the appropriate are to place a new medical center based on their knowledge of...
Lesson Plan
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Soda Cans

For Teachers 8th - 10th
Students identify and use properties of similar figures. In this geometry lesson, students use proportions of the sides of triangles to solve triangular relationships. They use soda can as their visuals.
Lesson Plan
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Light Bounce

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

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

For Teachers 9th - 11th
Students 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
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Diagonals of Quadrilaterals

For Teachers 9th - 10th
Pupils find the diagonals of the quadrilaterals. In this geometry lesson, students identify and use properties of quadrilaterals. They define different parts of a quadrilateral shape.
Lesson Plan
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Hexagon Island

For Teachers 9th - 12th
Young scholars identify different polygons. In this geometry lesson, students name polygons using the number of sides. They calculate distance and slopes using the correct formula.
Lesson Plan
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Diagonals to Quadrilaterals II

For Teachers 8th - 10th
Students identify the properties of different polygons. For 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
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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...