Worksheet
Curated OER

Right Triangle Trigonometry

For Students 10th
In this geometry activity, 10th graders use right triangle trigonometry to find the missing angle measure.  The two page activity contains fourteen problems.  Answers are provided. 
Lesson Plan
Curated OER

Trajectory Perplexity

For Teachers 11th - 12th
Students investigate measuring angles correctly through projectiles. In this geometry lesson, students launch a projectile to investigate the importance of how to measure an angle correctly and to explore trajectory. They collect...
Lesson Plan
Curated OER

Water to the Max

For Teachers 9th - 12th
Students experiment with the angle that yields the greatest distance of water at constant pressure.  In this experiment with the angle that yields the greatest distance of water at constant pressure instructional activity, students...
Worksheet
Curated OER

Trigonometric Ratios

For Students 10th
In this geometry learning exercise, 10th graders use right triangle trigonometry to find the missing angle measure or side length.  The three page learning exercise contains a combination of twelve multiple choice and free response...
Worksheet
Curated OER

Classifying Triangles

For Students 8th - 10th
In this classifying triangles worksheet, students explore given lengths or angle measurements and then classify each triangle as isosceles, scalene or equilateral. They also determine if the triangle may be right, acute or obtuse. This...
Lesson Plan
Curated OER

Properties of Parallelograms

For Teachers 9th - 12th Standards
High schoolers discover properties of parallelograms as they construct a parallelogram using Cabri Jr. They will measure angles and side lengths of their construction and determine the relationship between the diagonals of a...
Worksheet
Curated OER

Corresponding Angles

For Students 7th - 9th
In this corresponding angles worksheet, students identify corresponding angles and determine their angle measurement.  This two-page worksheet contains 6 problems.  Answers are provided on the last page.
Worksheet
Curated OER

Properties of Quadrilaterals

For Students 9th - 11th
In this properties of quadrilaterals worksheet, students use the properties of quadrilaterals to find the perimeter, angle measurement or length of a missing side of a given polygon. Examples and explanations of the properties are...
Worksheet
Math Worksheets Land

Co-Interior Angles Worksheet

For Students 6th - 9th Standards
Examine parallel lines with a transversal. From the given information, geometry fledglings find the angle measurement of interior angles. This two-page task contains six multi-step problems. Answers are provided on the last page.
Worksheet
Curated OER

Easy Worksheet: Classify the Triangle

For Students 9th - 12th
In this classify the triangle worksheet, students solve 6 short answer problems. Students identify the type of triangle being described according to its angle measures and side lengths.
Worksheet
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Curated OER

Right Triangle Trigonometry: Evaluating Trigonometric Ratios

For Students 10th - 12th
In this right triangle trigonometry learning exercise, students use trigonometric ratios to determine the length of a missing side of a triangle or to find a specified angle measurement. This four-page learning exercise contains 32...
Lesson Plan
Curated OER

Mirror Symmetry/Mirror Images

For Teachers 5th - 6th
Students explore lines of symmetry in geometric shapes. In this geometry instructional activity, students construct angles using mirrors and rubberbands, then predict the number of images that will appear in the reflection. Students...
Lesson Plan
Curated OER

Measurement

For Teachers 9th - 11th
Young scholars measure angles, perimeter, area and volume. In this geometry lesson, students define different ways to measure and solve for the perimeter, area and volume of geometric shapes. They analyze and process information to help...
Worksheet
Curated OER

Trig Ratios of General Angles

For Students 10th - 12th
In this trig ratios worksheet, learners determine the angle measurement of trigonometric ratios. They find the value of trigonometric function. This approximately four-page worksheet contains 24 problems. Answers are provided on the last...
Interactive
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Mixed Right Triangles

For Students 10th
In this geometry worksheet, 10th graders use right triangle trigonometry to find the missing angle measure or side length in right triangles. The one page interactive worksheet contains ten questions. Answers and hints are included. 
Lesson Plan
Curated OER

Super Gelatin

For Teachers 9th - 12th
Students measure angles of refraction as the light travels through gelatin.  For this experimental lesson students complete a refraction lab and plot their data.
Worksheet
Curated OER

Proving Lines Parallel Homework

For Students 9th - 12th
In this parallel lines worksheet, students solve 13 short answer and fill in the blank problems. Students determine which lines are parallel given a statement such as if these angle measures are equal then which lines are parallel?...
Worksheet
Curated OER

Properties of Parallelograms

For Students 10th
In this geometry worksheet, 10th graders apply the properties of parallelograms to find the indicated angle measure or segment length. The two page worksheet contains twenty-two problems. Answers are included.
Worksheet
Curated OER

Latitude and Longitude

For Students 5th - 6th
For this latitude and longitude worksheet, students complete 4 activities to demonstrate understanding. Students use a protractor to measure angles on a map of the earth. Students fill out a latitude and longitude chart after studying a...
Worksheet
Curated OER

Trapezoids

For Students 9th - 12th
In this trapezoids activity, student solve 46 fill in the blank problems. Students find unknown side lengths and angle measures of an isosceles trapezoid and a rhombus.
Worksheet
Curated OER

Triangle Fundamentals Multiple Choice

For Students 7th - 12th
In this triangles worksheet, students identify the parts of a triangle.  They determine the value of an angle measurement, and identify the characteristics of triangles.  This two-page worksheet contains 10 problems.  This...
Worksheet
Curated OER

Complementary and Supplementary Angles #3

For Students 4th - 6th
Learners are given one angle measurement and determine either the corresponding supplementary or complementary angle measurement. A reference web site is given for additional activities.
PPT
Curated OER

Classifying Triangles

For Teachers 5th - 7th
This presentation shows how triangles are classified by angle measurement and length of sides.  It reviews isosceles, scalene, obtuse, right, and acute classifications and includes questions for students to classify some of the...
Lesson Plan
Curated OER

Biography of a Star: Our Sun's Birth, Life, and Death

For Teachers 9th - 12th
High schoolers examine how astronomers use parallax to determine the distances of stars in the Sun's neighborhood. They construct a pinhole protractor, and measure angles and calculate distances.

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