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28 resources with the keyterm obtuse angle

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Algebra 50 - Three Variable Systems in the Real World - Problem 2 Video
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Other Resource Types (28)
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Printables
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Amazing Angles

For Teachers 4th - 9th Standards
Three letter-sized mini posters can be displayed in your elementary geometry class when teaching about angles. One provides information about degree measurement and additive properties, and the other two define acute, right, obtuse,...
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Instructional Video5:32
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Acute Right and Obtuse Angles

For Students 9th - 10th
Highlighting the basics of working with angles, this resource could provide a sound introductory activity for students who are beginning to learn about angles. Eager mathematicians will be introduced to the terminology associated with...
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Lesson Plan
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The Angle Tangle

For Teachers 4th - 5th Standards
Fourth and fifth graders identify three types of angles, recognize that angles are measured in degrees, measure angles using protractors or angle rulers. They classify angles as a class, classify angles on pattern blocks, and complete a...
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Worksheet
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Square Corners

For Students 2nd - 4th Standards
Are these angles greater than, less than, or equal to a square corner? Using a visual guide, young geometers label 16 angles into one of these three categories. Use this before introducing the terms acute, obtuse, and right angle, but...
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Lesson Plan
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Angles

For Teachers 3rd - 5th
Learners identify obtuse and acute angles in comparsion to a right angle. They identify obtuse, acute, and right angles. Pupils use "Shape Measure" to construct obtuse, acute, and right angles. They review line segements to locate right...
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Worksheet
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Lines, Line Segments, Rays, and Angles - Practice 15.1

For Students 3rd - 5th Standards
Is it a line, line segment, ray, or angle? Identifying geometric figures is the focus. In addition to identification, learners recognize right angles or tell if an angle is less than or greater than a right angle. They tell if lines are...
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Interactive
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Measuring Angles - Pretest Questions

For Students 4th - 6th
Upper graders solve ten multiple choice problems about angles and measuring angles.
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Worksheet
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Rays and Angles - Homework 16.2

For Students 3rd - 5th
Learners name seven different angles in three different ways and then classify each angle as acute, obtuse, right or straight. They solve one word problem.
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Lesson Plan
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Identify and Label Different Types of Angles

For Teachers 3rd - 4th
Students identify and label acute, obtuse, and right angles within a picture. Using Kid Pix software and digital photos, they manipulate, identify, and label the angles and describe the angles to a classmate.
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Lesson Plan
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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...
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Worksheet
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Measuring Angles

For Students 10th
Solve and complete 18 problems about angles. First,  demonstrate that each conjecture is false by giving a counterexample. Then write the inverse, contrapositive, and converse for the each statement. In addition, write a biconditional...
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Worksheet
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Three Ways to Name an Angle

For Students 4th - 6th
Learners first name angles in three ways, then classify them as acute, obtuse or right angles. Good practice when introducing the concept of different types of angles.
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Worksheet
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Draw Angles of Given Type

For Students 3rd - 6th
In this angle type worksheet, students draw 9 angles. Each angle is of a specified type rather than a given number of degrees.
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Lesson Plan
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Lesson 3: Measuring Angles

For Teachers 3rd - 5th
Students use a protractor to measure angles. They classify angles by type: right angle, acute angles, and obtuse angles. Students build and draw right, acute, and obtuse angles. They discuss how do people in various professions use...
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Lesson Plan
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Construct, Identify, and Label Angles

For Teachers 3rd - 5th
Students create angels using various models. In this math lesson, students label the three types of angels and their parts. Additionally, students create the angle with their bodies.
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Lesson Plan
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Mr. Bo Jangle, What's Your Angle?

For Teachers 3rd
Third graders explore angles. In this geometry activity, 3rd graders identify and define acute, obtuse, and right angles. Students form angles with their bodies, find angles in picture books, and record angles found outside in their...
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Lesson Plan
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An Introduction to Angles

For Teachers 4th - 8th
Students identify and create angles. In this angle measurement instructional activity, students use sticks to make models of angles, then measure and name each angle.
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Lesson Plan
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Angles, Bearings and Maps

For Teachers 6th - 8th
Students review what they comprehend about angles. They name the differnt types of angles and define them. Students use their protractors to answer questions, the teacher walks around to look at the positioning of the protractors. ...
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Lesson Plan
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8th Grade Math Classifying Angles

For Teachers 8th
Eighth graders identify and compare acute, right, obtuse, and straight angles. They draw two angles on pieces of construction paper so they can accurately know what it looks like. Students hang the drawings on the wall. They are asked...
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Lesson Plan
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Geometry Lesson 7: Line Segments And Angles

For Teachers 4th
Fourth graders examine and identify line segments and angles using dot paper to draw them. They look at vertical, horizontal, intersecting, parallel and perpendicular lines, draw right angles and angles that are greater than and less...
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Lesson Plan
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Daily Upkeep 7

For Teachers 4th
For this geometry worksheet, 4th graders complete a quick set of math activities where they first identify which portion of a model is shaded in fraction form. Then, they select which angle best describes a given angle. Finally, students...
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Worksheet
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Angle Constructions

For Students 6th
In this angle constructions instructional activity, 6th graders solve and complete 4 various types of problems. First, they construct a perpendicular bisector of two points. Then, students construct an angle bisector for the angle shown....
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Worksheet
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Measuring Angles with a Protractor

For Students 7th - 8th
In this measuring angles worksheet, learners solve and complete 3 various types of problems. First, they complete each statement by measuring each angle shown. Then, students measure all three angles in a triangle and add them.
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Worksheet
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Right Triangles

For Students 10th
In this right triangles instructional activity, 10th graders solve and complete 12 different types of problems. First, they solve for a variable given each of the right triangles with the sides as indicated. Then, students determine the...