Worksheet
Curated OER

Area and Perimeter

For Students 10th
In this area and perimeter learning exercise, 10th graders solve and complete 18 various types of geometry problems. First, they find the area of a figure shown with consecutive sides perpendicular. Then, students find the area and...
Lesson Plan
Curated OER

Line Construction

For Teachers 9th - 11th
In this geometry worksheet, students construct perpendicular and parallel lines through a given points using a straightedge and a compass. There are 5 questions with an answer key.
Lesson Plan
Curated OER

Angle Relationships

For Teachers 10th
Tenth graders explore the angle relationships that exist when two lines intersect. In this geometry lesson, 10th graders estimate the measure of given angles and use their graphing calculator tools. Students use this knowledge to find...
Worksheet
Curated OER

Reflections

For Students 9th - 10th
In this geometry worksheet, students identify the different types of reflections across the x and y axis. There are 6 questions on this worksheet with an answer key.
Worksheet
Curated OER

Vertical Angles

For Students 10th
In this geometry learning exercise, 10th graders investigate vertical angles, solve for vertical angles using equations that are equal and relate it to solving linear equation. There are 10 problems on this learning exercise.
Worksheet
Curated OER

Circles

For Students 9th - 10th
In this geometry worksheet, students solve problems by finding the diameter, radius and chord of a circle. They also solve for the area of the circle. There are 10 questions with an answer key.
Lesson Plan
Curated OER

Pyramids

For Teachers 10th
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid.  The two page worksheet contains a combination of seven multiple choice and free response questions.  Answers are...
Lesson Plan
Curated OER

Chords of a Circle

For Teachers 10th
In this geometry worksheet, 10th graders calculate the length of a chord and the distance from the center of a circle or radius. They compare diameter, chords and radius. There are 10 questions with an answer key.
Worksheet
Curated OER

Midpoints and Bisectors

For Students 9th - 10th
In this geometry activity, students calculate the midpoints of polygons using coordinate pairs. They find the  angle bisector, altitude and median of the given triangles. There are 33 questions.
Worksheet
Curated OER

Planes and Lines

For Students 10th
In this geometry activity, 10th graders determine the number of planes that can pass through a given point and are perpendicular to a given line.  The one page activity contains one multiple choice question.  Answer is...
Lesson Plan
Curated OER

Parallel and Perpendicular Line Construction

For Teachers 9th - 11th
In this geometry worksheet, students construct parallel and perpendicular lines given a straight edge and a compass. Their lines pass through a given point. There are 4 questions with an answer key.
Worksheet
Curated OER

Inverse, Converse and Contra-positive

For Students 10th
In this geometry worksheet, 10th graders identify the inverse, converse and contra-positive in each given sentence. They rewrite the sentences to make the statement true. There are 6 questions with an answer key.
Worksheet
Curated OER

Inverse and Converse

For Students 9th - 11th
In this geometry learning exercise, students identify given statements for the inverse, converse and contra-positive of a conditional statement. There are 9 questions with an answer key.
Worksheet
Curated OER

Distance on a coordinate plane

For Students 10th
In this geometry worksheet, 10th graders solve problems in which they find the distance between two points on a coordinate plane.  The two page worksheet contains a combination of eleven multiple choice and free response...
Worksheet
Curated OER

Geometry Tracing and Matching Worksheet - Squares

For Students 2nd
In this geometry worksheet, 2nd graders trace the squares on the left and draw a line to connect the ones that are the same size on the right.
Worksheet
Curated OER

Grade 5 Geometry

For Students 5th
In this grade five geometry worksheet, 5th graders utilizing mathematical strategies to calculate the perimeter of a triangle. Students recognize that the perimeter of a triangle is side a plus side b plus c.
Worksheet
Curated OER

Grade 4 Geometry

For Students 4th
In this grade four geometry worksheet, 4th graders calculate the perimeter of a rectangle by figuring out the formula of the width and length of each side.
Worksheet
Curated OER

Geometry Worksheet

For Students 10th
In this geometry worksheet, 10th graders solve for the missing angles using the angles theorems. There are 3 questions asking about angle bisectors and missing angles.
Lesson Plan
EngageNY

Scale Drawings

For Students 9th - 10th Standards
Are you searching for a purpose for geometric constructions? Use an engaging approach to explore dilations. Scholars create dilations using a construction method of their choice. As they build their constructed dilation, they...
Lesson Plan
EngageNY

The Inscribed Angle Alternate – A Tangent Angle

For Teachers 9th - 12th Standards
You know the Inscribed Angle Theorem and you know about tangent lines; now let's consider them together! Learners first explore angle measures when one of the rays of the angle is a tangent to a circle. They then apply their...
Lesson Plan
EngageNY

Proving the Area of a Disk

For Teachers 9th - 10th Standards
Using a similar process from the first lesson in the series of finding area approximations, a measurement resource develops the proof of the area of a circle. The problem set contains a derivation of the proof of the circumference...
Lesson Plan
EngageNY

Secant Angle Theorem, Exterior Case

For Teachers 9th - 12th Standards
It doesn't matter whether secant lines intersect inside or outside the circle, right? Scholars extend concepts from the previous activity to investigate angles created by secant lines that intersect at a point exterior to the...
Lesson Plan
EngageNY

Finding Systems of Inequalities That Describe Triangular and Rectangular Regions

For Students 9th - 12th Standards
How do you build a polygon from an inequality? An engaging lesson challenges pupils to do just that. Building from the previous lesson in this series, learners write systems of inequalities to model rectangles, triangles, and even...
Lesson Plan
West Contra Costa Unified School District

Congruence Through Transformations

For Teachers 9th - 12th Standards
Transform your lesson on transformations. Learners use given congruent triangles and tracing paper to determine the single transformation that carries one to the other. The concept is extended to combinations of transformations to...

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