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Lesson Plan
Curated OER

Reflections Of

For Teachers 4th - 6th
Students create angles using mirrors. In this angle reflection lesson plan, students draw angles, then use mirrors to create angles using reflections and measure the new angles.
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Worksheet
Curated OER

Estimate then Measure the Angle #4

For Students 4th - 6th
In this angles worksheet, students estimate angles to within 15 degrees, then measure and name each. A reference web site is given for additional activities.
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Activity
Curated OER

Task: Range of Motion

For Teachers 7th - 10th Standards
If you have ever injured your shoulder, you know it takes a while to improve your arm's range of motion. In this real-world example, young mathematicians gain insight into the world of physical therapy while they analyze a case study...
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Lesson Plan
Curated OER

Exploring Geometric Figures

For Teachers 10th
Tenth graders explore mathematics by participating in hands-on daily activities. Learners identify a list of different shapes and classify them by shape, size, sides and vertices. They utilize tangrams and geometric pieces to gain an...
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Lesson Plan
EngageNY

Making Scale Drawings Using the Ratio Method

For Students 9th - 10th Standards
Is that drawn to scale? Capture the artistry of geometry using the ratio method to create dilations. Mathematicians use a center and ratio to create a scaled drawing. They then use a ruler and protractor to verify measurements. 
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Lesson Plan
Curated OER

Rays and Angles

For Teachers 9th - 12th
Students view examples of a ray, opposite rays, collinear rays, angles, and straight angles. They discuss and demonstrate how to use a protractor and complete worksheet problems on rays and angles.
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Worksheet
Curated OER

Measuring Angles

For Students 5th - 6th
In this measuring angles worksheet, students solve 10 problems in which angles are measured with a protractor and labeled with: acute, obtuse, right.
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Worksheet
Curated OER

Angles measure and classify

For Students 5th - 8th
In this angles worksheet, students measure angles with a protractor and figure out if it is acute, right, obtuse, or straight. Students complete 6 problems.
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Worksheet
Curated OER

Measuring angles and segments

For Students 7th - 8th
In this middle school geometry worksheet, students use a ruler and a protractor to measure segment length and angle size.  The one page worksheet contains six problems.  Answers are not provided. 
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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...
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App
Bytes Arithmetic

Geometry Pad+

For Students 6th - 10th Standards
Graphing paper, pencil, ruler, protractor, and compass, all get replaced or supplemented with this dynamic geometry application. Here, you can create, move, and scale many different shapes, as well as, explore and change their properties...
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Instructional Video2:16
Corbett Maths

Perpendicular from a Line to a Point

For Students 8th - 11th Standards
Take steps in the right direction. With a short demonstration, a video shows the steps to construct a perpendicular from a line to a point. Using a protractor, the narrator confirms the resulting construction is perpendicular, and then...
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Assessment
Mathed Up!

Loci and Constructions

For Students 8th - 11th Standards
A General Certificate of Secondary Education math review has class members make basic constructions. Using a protractor and a ruler along with a compass, pupils develop drawings of triangles with given measurements. Scholars use their...
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Worksheet
Curated OER

Protractor #4

For Students 4th - 6th
In this angles learning exercise, students measure and label angles as either acute, right, obtuse or straight. A reference web site is given for additional activities.
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Worksheet
Curated OER

Protractor #5

For Students 4th - 6th
In this measuring angles worksheet, students measure a set of angles, then check the appropriate measure and name of each. A reference web site is given for additional activities.
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Lesson Plan
Houghton Mifflin Harcourt

Introducing the Concept: Triangles and Quadrilaterals

For Teachers 5th - 7th Standards
Guide your geometers through the process of constructing polygons. They learn how to draw triangles, squares, parallelograms, rectangles, rhombuses, and trapezoids with specified angles using a protractor and a ruler. The lesson plan...
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Lesson Plan
Curated OER

Measure: Bearings and Scale Drawings

For Teachers 5th - 7th
Young mathematicians practice measuring acurately with a protractor. They convert measurements using a scale factor, then translate the new information into diagrams. This instructional activity should be a hit in that it's mostly...
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Lesson Plan
Curated OER

Sample Lesson Plan on Lines and Angles

For Teachers 3rd - 5th
Student complete worksheet using the definitions of lines and angle vocabulary. They define the word and follow a direction given on the worksheet such "construct a line." They complete an online tutorial on how to measure angles using a...
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Lesson Plan
Curated OER

Projectiles

For Teachers 3rd - 8th
Students measure the angle and distance of an arc. In this projectile lesson, students observe arcs created by water guns, bow and arrows, and slingshots, then work in small groups and use protractors and strings to measure the angle and...
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Lesson Plan
Utah Education Network (UEN)

It's All Just Similar to Me

For Teachers 7th - 8th
Middle schoolers explore the concept of similar figures. For this similar figures lesson, pupils calculate scale factors of similar triangles. They find missing sides of triangles, and measure angles using protractors and measure sides...
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Lesson Plan
Curated OER

Solving Problems Using Triangle Inequality Theorem

For Teachers 6th
Sixth graders investigate triangles and the inequality theorem. They will collaborate in groups to determine the length of a longest side of a triangle. Then relate the size of the triangle to its angles using protractors, yard sticks,...
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Lesson Plan
Curated OER

Exploring the Definition of Reflection

For Teachers 6th - 12th
Students practice using a protractor and ruler to draw various points and lines. Using a computer, they draw the points and lines in the program and describe the differences between their drawing and the computer's drawing. They complete...
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Worksheet
Curated OER

Angles and Measuring

For Students 10th
Learners identify various angles and how to measure each type. They use a protractor to measure each of the angles. Students also write the name of the angle and identify the number of degrees for each.
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Lesson Plan
Curated OER

Angles - Digger and the Gang

For Teachers 4th - 6th
Students explore angle estimation and measurement. In this angle lesson, students define obtuse, acute, and right angles, and practice measuring angles using a protractor. Students participate in an online angle estimation activity.

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