+
Worksheet
Curated OER

Geometric Proofs

For Students 10th - 11th
In this geometric proof learning exercise, learners use geometric theorems and rules to prove given statements. They prove that given lines and angles are similar. This five-page learning exercise contains ten problems.
+
Worksheet
Curated OER

Angle Measurement

For Students 10th
In this angle measurement instructional activity, 10th graders solve 24 different problems related to determining the measurement of various angles. First, they define the various ways to measure an angle and define the type of angle...
+
Worksheet
Curated OER

Angle Measurement 2

For Students 10th
For this angle measurement worksheet, 10th graders solve 24 problems that include determining the measurement of various angles. First, they define each angle and the specific type that is shown in each. Then, students determine the...
+
Worksheet
Curated OER

Parallel Lines and Proportional Parts

For Students 10th
In this parallel lines and proportional parts learning exercise, 10th graders solve 5 different problems related to determining whether lines are parallel and proportional in each figure. First, they refer to the figure shown at the top...
+
Lesson Plan
Curated OER

Segmenting and Blending Words

For Teachers K
Students are introduced to the concept of segmentation and blending of words. As a class, they are shown various words and are asked to determine the amount of letters and sounds in each. To end the lesson, they participate in a...
+
Lesson Plan
Curated OER

Basic Geometry Ideas and Angle Measurement

For Teachers 7th
Seventh graders explore the concept of basic geometry. In this basic geometry lesson, 7th graders identify the correct picture for a given vocabulary word such as midpoint, line, ray, or parallel lines. Students discuss examples of...
+
Lesson Plan
Curated OER

Measurement

For Teachers 6th - 7th
In this measurement worksheet, students measure distance with a provided ruler. Using the provided map scale, students determine the actual distance between objects. They may set up proportions to evaluate each situation.
+
Lesson Plan
Curated OER

Bisecting Angles and Segments

For Teachers 9th - 12th
Students bisect angles and segments using a mira. They measure the original angles and segments and the angles and segments formed by bisecting to better see the relationship between them.
+
Lesson Plan
Curated OER

Lines, Rays, Line Segments, and Planes

For Teachers 9th - 12th
Students are introduced to lines, rays, line segments and planes and study the differences between them. They also practice graphing lines, rays, line segments and planes
+
Activity
BBC

Bbc: Angles

For Students 6th - 9th Standards
You can pick up some valuable pointers on angles and lines here. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
+
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Triangle Inequality

For Students 9th - 10th
This activity illustrates the Triangle Inequality and the conditions necessary for a triangle to be formed from three straight lines.
+
Handout
Math Open Reference

Math Open Reference: Congruent

For Students 9th - 10th Standards
Learn about congruent with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.
+
Handout
Math Open Reference

Math Open Reference: Diagonals of a Square

For Students 9th - 10th
A complete reference guide to diagonals of a square. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.
+
Lesson Plan
Other

Nearpod: Rotations Using Coordinates

For Teachers 8th Standards
In this lesson on rotations using coordinates, 8th graders explore rotations of line segments using the coordinate plane.