Curated OER
Complementary Angles
Elementary schoolers find the missing angle in a complementary angle. This two-page worksheet contains six problems. Answers are provided.
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Relationship of Angles
A direct, graphically clean practice sheet for identifying complementary, supplementary, and vertical angles. Given a diagram, learners simply write the correct designation on the line. Six problems are presented.
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Angles All Around Us
Explore with your class the characteristics of acute, obtuse, right, complementary, and supplementary angles. They take digital photographs around the school and identify the angles in the images. Uisng software, they label and print the...
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Does Your Field Measure Up
Learners measure angles using a plane table kit. In this geometry lesson, students use trigonometric identities to find the values of the length of a football field.
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Geometric Properties
Students find triangular angles using the angle theorem. In this geometry instructional activity, students describe labeled triangles, use the pythagorean theorem, and rewrite information about triangles in standard form.
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Extra Practice with Proofs
In this practice with proofs worksheet, students give a reason for each step of a proof. They complete missing portions of a proof. This one-page worksheet contains three multi-step problems.
K6 Math
Complementary and Supplementary Angles #1
Learners are given one angle measure, and then determine the corresponding supplementary or complementary angle. A reference web site is given for additional activities. This assignement can be adapted to demonstrate that angle measure...
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Classifying Angles
In this classifying angles worksheet, 10th graders solve and complete 21 various types of problems. First, they use the diagram shown on the right to answer the questions that follow. Then, students solve for x and find the measure of...
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Angle Measures
In this angle measures instructional activity, 10th graders solve and complete 6 different types of problems. First, they find the coordinates of each angle given. Then, students determine if the angles are complementary or...
National Endowment for the Humanities
Lesson 1: In Depth with the Full Spectrum
High schoolers study the ways in which an artist can use color. They view various images of artwork and discuss the effect of color on spacial dimensions, focal points, tone, and mood.
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Complementary and Supplementary Angles #3
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.
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Sixteen Angle Pre-calculus Trig Problems
In this angle worksheet, students solve ten multiple choice and six free response questions. These precalculus questions cover angles, radians, and right triangles.
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Measurement
For this measurement worksheet, students find the value of complementary and supplementary angles. They identify angles, parallel lines, and find the angle measurement of missing angles in a triangle. This one-page worksheet contains 10...
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Pre-Proof Warm-Ups
In this pre-proofs worksheet, 10th graders solve and complete 10 different problems that include various proofs and their definitions. They use the diagram shown and the given information to write the direct conclusion for each case....
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Angle Measurements
For this angle measurements worksheet, 10th graders solve 12 problems that refer to the illustrations on the sheet and find the measures of various types of angles. First, they refer to the first figure to respond to 6 questions about...
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Angles and Parallel Lines
In this angles and parallel lines worksheet, 10th graders solve 27 different variations of angle types and parallel lines. They name a linear pair, a pair of vertical angles, a pair of complementary angles, and a pair of supplementary...
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Deductive Reasoning
In this deductive reasoning worksheet, 10th graders solve 6 various problems applying deductive reasoning to each. First, they determine if a valid conclusion can be reached from the 2 true statements using the Law of Detachment or the...
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Gee's Bend Quilts
Third graders identify five new facts about the quilts, women, and community of Gee's Bend and finish their quilts by sewing the four edges of the quilt down. They review the color wheel and what the terms Primary, Secondary, Analogous,...
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Angles and Parallel Lines
Sixth graders draw parallel and intersecting lines to observe and examine the characteristics of alternate interior angles, vertical angles, corresponding angles, and supplementary angles. Through observation, they discover the...
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Gee's Bend Quilts One
Third graders identify analogous and contemporary colors on the color wheel and identify the five facts about the quilts, women, and community of Gees Bend. Finally, 3rd graders pinned their fabric pieces to the copy paper in the exact...