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100 resources with the concept sides

Videos (Over 2 Million Educational Videos Available)
Who was Frederick Douglass? Video
3:07
Who was Frederick Douglass?
How to paint a watercolor and ink flower bouquet | Watercolor Flower Painting Video
6:54
How to paint a watercolor and ink flower...
Women's History Activator: Eleanor Roosevelt Video
5:34
Women's History Activator: Eleanor Roosevelt
Other Resource Types (100)
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12 Items in Topic
Lesson Planet: Curated OER

Math Antics Geometry Video Lessons

For Teachers 4th - 8th Standards
The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...
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Unit Plan
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Accessible Shapes

For Teachers 6th - 8th Standards
All the 2-D and 3-D measurement work you need is in one location. Divided into three sections, the geometry lesson plans consist of visualization of three dimensions, classifying geometric figures, and finding surface area and volume....
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Instructional Video4:25
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Views and Elevations

For Students 6th - 12th Standards
The view depends upon location. A short video introduces the idea of views and elevations of 3-D figures. Using figures composed of cubes, the presenter creates their front, side, and plan views. The last figure requires the viewer to...
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Instructional Video2:07
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SSS Similarity Theorem: Lesson

For Students 9th - 11th Standards
Judging by the sides, things appear similar. A portion of a larger playlist on geometry introduces the Side-Side-Side Similarity Theorem. The video shows how to use the lengths of sides to determine whether triangles are similar.
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Instructional Video3:41
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Parallelograms: Lesson

For Students 8th - 11th Standards
Properties spawn from parallel sides. With the aid of diagrams, the presentation shows the different properties of parallelograms. The segment of an extensive geometry playlist lists the properties that using the parallel sides of a...
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Instructional Video5:25
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Comparing Triangle Angles and Sides: Lesson

For Students 7th - 11th
Use the opposite to organize angles or sides. The video provides the relationship of angle measures based on the lengths of sides in a triangle and its converse. Using two triangles, the segment of a larger playlist on geometry shows the...
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Instructional Video3:51
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ASA and AAS Triangle Congruence Lesson

For Students 8th - 11th Standards
The location of the side makes a difference. One of the videos in a geometry playlist introduces angle-side-angle and angle-angle-side congruence relationships. Using drawings, the video shows how these two congruence statements are...
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Instructional Video3:05
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SSS Triangle Congruence: Lesson

For Students 7th - 11th Standards
Gimme three sides, mister! The video introduces the Side-Side-Side Triangle Congruence Theorem. Using segments of different lengths, the portion of a larger playlist on geometry shows that only one triangle can be built.
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Instructional Video3:20
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SAS Triangle Congruence: Lesson

For Students 8th - 11th Standards
SAS is not just a spy organization. A section of an extensive geometry playlist introduces a way to show two triangles are congruent, SAS. Using diagrams, the video provides an explanation by showing only one triangle is formed with two...
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Instructional Video4:01
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Classifying Polygons: Lesson

For Students 4th - 8th Standards
For your eyes only: classify the names of polygons. After providing the definition of a polygon, the video introduces the two major classifications of polygons, concave and convex. The segment of a larger playlist on geometry continues...
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Interactive
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Proofs: Angle Pairs and Segments—The Three Angle Problem

For Students 9th - 11th
Finding the sum of the measures of three angles is easy, unless you have no clue what the measures are. Learners use an interactive diagram to see a geometric problem in a different way. A set of challenge questions takes them through...
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Instructional Video2:35
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SOHCAHTOA - Finding Missing Sides Part 2

For Students 9th - 12th Standards
Explore some right triangle trigonometry with a straightforward video lesson. The instructor presents problems requiring scholars to use trig ratios to find unknown side measures. She provides worked-out solutions for those needing...
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Instructional Video12:55
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In 1 Collection
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The Pythagorean Theorem

For Students 4th - 8th Standards
Be sure the class gets this one right. Using a right triangle, the video introduces the Pythagorean Theorem. The presentation breaks down the theorem into its components while providing uses of the Pythagorean Theorem and its converse.
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Instructional Video7:27
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In 1 Collection
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Polygons

For Students 4th - 8th
What shapes classify as a polygon? The resource provides the definition of a polygon and provides examples of polygons and shapes that are not polygons. The presentation gives an explanation of why each shape falls into the particular...
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Interactive
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Special Triangle Ratios: Special Right Triangle Ratios

For Students 9th - 12th Standards
Go from one side length to any other side length with special right triangles. Individuals use the interactive to investigate the ratio of sides in 45-45 and 30-60 right triangles. Scholars make generalizations about the types of special...
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Instructional Video2:14
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Polygon Angle Sum

For Students 9th - 12th Standards
Using patterns to build a formula is an important mathematical skill. Pupils discover a formula to find the sum of interior angles in a polygon by analyzing a pattern. The additional videos show how to use the formula to find various...
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Printables
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In 1 Collection
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Unit 3 Math Vocabulary Cards (Grade 1)

For Students 1st Standards
Reinforce math vocabulary with a set of flashcards. Each card showcases a boldly typed word or a picture representation with labels. The topics are geometry related and include terms such as cones, faces, pyramids, sides, and more! 
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Instructional Video1:26
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In 1 Collection
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The Triangle, Circle and Square

For Students Pre-K - 1st Standards
Get to know the triangle, circle, and square with a music video filled with hand-drawn animation set to a laid back beat. 
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Lesson Plan
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Shape Sorting: Looking for Green!

For Teachers Pre-K - 1st Standards
Young mathematicians rotate, flip, and sort their way to an understanding of the different attributes of geometric figures. Using transparent yellow and blue shapes, children try to match congruent figures together to create...
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Instructional Video2:12
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What are the Legs and Hypotenuse of a Right Triangle?

For Teachers 6th - 10th
What are all the parts of a right triangle called? What makes it a right triangle? Legs? Triangles have legs? Hypotenuse? Pythagorean Theorem? The instructor diagrams and identifies all the parts of a right triangle for you.
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Instructional Video5:58
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What is a Triangle?

For Teachers 1st - 5th
Triangles, triangles, triangles. What makes a polygon a triangle? How many types of triangles are there? How do you determine what kind of triangle it is? Watch this video as the teacher explains 'tri' meaning three, making a triangle -...
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Instructional Video5:07
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How Do You Find a Missing Side of a Right Triangle Using Cosine?

For Teachers 6th - 11th
Trigonometry? What's trigonometry. Well, something to do with triangles, right? Right! Right triangles! In this problem, find the missing length of one of the sides. So set this up as a ratio: cosine(A) = adjacent side length divided by...
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Instructional Video2:49
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How Do You Determine if a Triangle Is a Right Triangle if You Know its Sides?

For Teachers 6th - 10th
Use the Pythagorean Theorem formula to check if this given triangle, with the given lengths of each side, is a right triangle. It's as simple as plugging the given values into the formula and doing the math to see if the solution checks...
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Instructional Video5:22
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What is an Angle?

For Teachers 6th - 12th
An angle is formed when two rays share a common endpoint. Want to know more about angles? There are a lot of terms in this lesson. You might have to watch it two or even three times to make sure you understand all the terms. I recommend...