Worksheet
Curated OER

Acute or Obtuse Angles

For Students 6th - 7th
In this geometry worksheet, students view ten angles of varying degrees and identify if the angle is acute or obtuse. The students write the answer on the lines provided.s
Worksheet
Curated OER

Pairs of Angles

For Students 10th
In this geometry worksheet, 10th graders determine the measures of various angle pairs:  supplementary, complementary, and vertical angles.  The two page worksheet contains a combination of twelve multiple choice and free...
Worksheet
Curated OER

Parallel and Perpendicular Lines

For Students 9th - 10th
In this algebra/geometry worksheet, learners investigate the slopes and equations of parallel and perpendicular lines.  The two page worksheet contains a combination of eleven multiple choice and free response questions. ...
Worksheet
Curated OER

Tangents, Secants, and Chords

For Students 10th
In this tangents, secants and chords worksheet, 10th graders identify and solve 48 different problems that include using 3 different theorems for defining circles. First, they determine the area of each circle with C as the center and a...
Worksheet
Curated OER

Diagnostic Test: Angles & Parallel Lines

For Students 9th - 11th
In this diagnostic test worksheet, students solve problems involving angles, parallel lines, and perpendicular lines. They identify alternate interior angles, alternate exterior angles, and corresponding angles. Students find the...
Worksheet
Curated OER

Downtown Landmarks: geometry on Firstside

For Students 5th - 10th
In this geometry worksheet, students look at a picture of downtown landmarks and identify different shapes, lines, and more. Students identify 18 items.
Lesson Plan
Curated OER

Geometry of Triangles - Week 6

For Teachers 12th - Higher Ed
In this geometry of triangles worksheet, students find the length of sides, are, and angle measurement of inscribed triangles, pentagons, and midpoint of a line. This two-page worksheet contains seven problems.
Worksheet
Curated OER

Geometric Proof and Angles

For Students 10th
In this geometry activity, 10th graders write two-column and paragraph proofs to prove angle pair relationships.  The one page activity contains five problems.  Answers are not included. 
Worksheet
Curated OER

Parallel Lines

For Students 10th
In this parallel lines worksheet, 10th graders solve and complete 16 different types of problems. First, they name the lines that are parallel to those listed. Then, students find that values that make each set of line parallel. They...
Worksheet
Curated OER

Solve Word Problems with Geometry

For Students 7th - 12th
In this geometry learning exercise, students solve word problems having to do with lines, angles, shapes, area, perimeter, and more. Students complete 57 problems total.
Lesson Plan
EngageNY

Similar Triangles in Circle-Secant (or Circle-Secant-Tangent) Diagrams

For Teachers 9th - 12th Standards
First angle measures, now segment lengths. High schoolers first measure segments formed by secants that intersect interior to a circle, secants that intersect exterior to a circle, and a secant and a tangent that intersect exterior to a...
Lesson Plan
Curated OER

Sea Squares

For Teachers 10th
In this sea squares worksheet, 10th graders solve 5 different problems that include various geometrical figures. First, they draw a number line using one color. Then, students draw 2 obtuse angles and 3 isosceles triangles with different...
Worksheet
Curated OER

Challenge: Skills and Applications Lesson 3.4

For Students 9th - 10th
In this geometry activity, students identify the missing angles formed by parallel lines and a transversal. They differentiate between parallel and perpendicular lines. There are four questions.
Worksheet
Curated OER

Geometric Proofs

For Students 10th - 11th
In this geometric proof worksheet, students use geometric theorems and rules to prove given statements. They prove that given lines and angles are similar. This five-page worksheet contains ten problems.
Lesson Plan
EngageNY

Tangent Segments

For Teachers 9th - 12th Standards
What's so special about tangents? Learners first explore how if a circle is tangent to both rays of an angle, then its center is on the angle bisector. They then complete a set of exercises designed to explore further properties and...
Assessment
Inside Mathematics

Quadrilaterals

For Teachers 9th - 12th Standards
What figure is formed by connecting the midpoints of the sides of a quadrilateral? The geometry assessment task has class members work through the process of determining the figure inscribed in a quadrilateral. Pupils use geometric...
Lesson Plan
EngageNY

Designing a Search Robot to Find a Beacon

For Students 9th - 12th Standards
Build right angles using coordinate geometry! Pupils explore the concept of slope related to perpendicular lines by examining 90-degree rotations of right triangles. Learners determine the slope of the hypotenuse becomes the opposite...
Worksheet
Curated OER

Picking Patterns

For Students 4th - 6th
In this pattern worksheet, students enumerate the number of objects that comes next in the sequence including triangles, blocks, and circles. There are 6 questions.
Worksheet
Curated OER

Angles ~ Right Angles

For Students 9th - 10th
Have your class review how to identify right angles. Learners identify right angles, and then write the number of angles found in each shape.
Lesson Plan
Curated OER

Exploring Geometry on the Sphere

For Teachers 9th - 10th
In this geometry worksheet, young scholars define important vocabulary dealing with circles. They measure cricles to the nearest degree. There are 11 word problems to be solved.
Activity
National Council of Teachers of Mathematics

Bank Shot

For Teachers 9th - 12th Standards
Bank on geometry to line up the shot. The resource asks the class to determine the location to bank a cue ball in a game of billiards. Using their knowledge, class members determine where to hit the bumper to make a shot and discuss...
Assessment
EngageNY

Geometry Module 5: End-of-Module Assessment

For Teachers 9th - 12th Standards
The lessons are complete. Learners take an end-of-module assessment in the last installment of a 23-part module. Questions contain multiple parts, each assessing different aspects of the module.
Worksheet
Curated OER

Circles and Cylinders

For Students 10th
In this geometry lesson, 10th graders break down a circle and identify the different parts. They discuss chords, diameter, radius, circumference, major and minor segment. There are 42 problems broken down into 5 different sections.
Worksheet
Curated OER

Symmetry Fun

For Students 7th
In this symmetry learning exercise, 7th graders identify and complete 12 different lines of symmetry in polygons. First, they color all of the polygons that have a line of symmetry. Then, students circle all of the regular polygons and...

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