+
PPT
Curated OER

Classifying Triangles

For Teachers 3rd - 5th
If you're looking for a presentation to assist you in your teaching of triangles, this one could be for you. In it, learners are shown how triangles are classified by the size of their angles and by their sides. These are tricky concepts...
+
Lesson Plan
Curated OER

Angles

For Teachers 4th - 5th
Fourth and fifth graders investigate angles and name them according to the criteria for obtuse, acute, and right angles. They examine a human-made yarn pattern on the floor of their classroom and identify angles, vertices, and types of...
+
PPT
Curated OER

Angles Lesson 15-2

For Teachers 3rd - 5th Standards
The four major types of angles, right, obtuse, acute, and straight are described in this fine presentation. First, the important vocabulary associated with angles is presented, then the types of angles are described. A protractor is...
+
Worksheet
Curated OER

Drawing Angles

For Students 4th - 5th
Get out those protractors! Once geometers can identify obtuse, acute, right, and straight angles, get them to measure and draw their own. There are six boxes here, each with an angle measurement. Learners use a protractor to draw the...
+
Lesson Plan
Curated OER

Lines and Angles with K'NEX

For Teachers 6th - 8th
Here is a geometry lesson planwhich invites learners to create models using their knowledge of lines, segments, rays, and angles. This lesson plan reinforces geometric vocabulary and concepts through practical application, it also...
+
PPT
Curated OER

Angles

For Teachers 3rd - 5th Standards
Here is a well-designed presentation on different types of angles for your young geometers. In it, learners view slides that clearly illustrate what these angles are, and how they are formed. Excellent practice when introducing these...
+
PPT
Curated OER

The Angles

For Teachers 2nd - 3rd
A very cute presentation on the four types of angles can be found in this resource. Young mathematicians are introduced to obtuse, acute, right, and reflex angles. Charming stick figures are depicted using the angles. Great for use in...
+
Lesson Plan
Curated OER

Know Your Angles

For Teachers 3rd - 7th
Explore types of angles and the characteristics of each. After observing a PowerPoint Presentation, learners tour the school facilities and use a digital camera to capture prescribed angles. Using the digital pictures and written...
+
Lesson Plan
Curated OER

Angles All Around Us

For Teachers 4th - 8th
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...
+
Lesson Plan
Curated OER

Toothpick Triangles

For Teachers 4th - 8th
Students draw a chart (included in the lesson) to use with their investigation. They review terminology of triangles and receive toothpicks to use in the lesson. Beginning with three toothpicks, students form a triangle. They complete...
+
Lesson Plan
Curated OER

Geometric Properties

For Teachers 9th - 12th
Students find triangular angles using the angle theorem. For this geometry lesson, students describe labeled triangles, use the pythagorean theorem, and rewrite information about triangles in standard form.
+
Worksheet
Curated OER

Classification of Triangle Measurement & Perimeter

For Students 10th
In this classification of triangles worksheet, 10th graders identify and complete 8 different problems that include determining the measurement and perimeter of various types of triangles. First, they color all right, acute, and obtuse...
+
Worksheet
Curated OER

Making an Angle Eater

For Students 3rd
Third graders create angle eaters where they use circles with cut outs to identify right, obtuse, and acute angles. Students complete 1 angle eater.
+
Worksheet
Raytheon

Just Measure It

For Students 5th - 7th
In this line segments and angles instructional activity, students solve problem solving problems and multiple choice questions about line segments and angles. Students complete 7 pages of problems.
+
Worksheet
Curated OER

Classify Triangles

For Students 4th - 7th
Here is a classifying triangles practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.
+
Lesson Plan
Curated OER

Poolroom Math

For Teachers 3rd - 4th
Learners identify, name, and measure angles using playing pool as a motivator in this instructional activity. They measure, define, and label different angles. They then discuss how their knowledge about angles could be used in a game of...
+
Lesson Plan
Curated OER

Identifying Angles

For Teachers 4th - 5th
Young scholars identify names of angles. They use a large clock to demonstrate angles using certain times of day. Given a geoboard, students create figures with acute, right, and obtuse angles.
+
Worksheet
Curated OER

Triangle Designs

For Students 4th - 6th
In this triangles worksheet, students draw different triangles and write how many sides and angles each one has. Students draw 4 kinds of triangles and have 2 that are impossible to draw.
+
Lesson Plan
Curated OER

Study Buddies: Classifying Triangles

For Teachers 4th - 5th
In this math worksheet, students analyze an informative chart about the measurement and angles of equilateral, isosceles and scalene triangles. Students then answer 5 questions about classifying triangles.
+
Worksheet
Curated OER

Triangles

For Students 4th
In this triangles instructional activity, 4th graders study the lengths that are stated for 3 triangles and describe each triangle by its sides. Students describe 3 additional triangles by their angles.
+
Worksheet
Curated OER

Classifying Angles

For Students 7th
In this classifying angles learning exercise, 7th graders identify and complete 17 different angles illustrated on the sheet. First, they use the key given to outline each angle. Then, students use a protractor to measure each angle and...
+
Worksheet
Curated OER

Countdown Challenge: Geometry Exploration

For Students 6th - 8th
In this geometry worksheet, students identify and draw right angles, acute angles, obtuse angles and straight angles. This one-page worksheet contains 34 problems.
+
Worksheet
Curated OER

Corresponding Angles

For Students 7th - 9th
For 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.
+
Lesson Plan
Curated OER

Fun Wth Angles

For Teachers 4th
Fourth graders explore angles in everyday life. In this angles lesson, 4th graders view examples of angles, then search magazines, newspapers and catalogues for more examples. Students work in pairs and check each other's work.