Curated OER
How Do You Find the Perimeter of a Shape?
Perimeter, area. Area, perimeter. Which is which? Perimeter is the distance around the edge of the shape. So all you have to do is add up the values.
Curated OER
What are Similar Figures?
Similar figures have the same shape, the same corresponding angles, but different lengths of their corresponding sides. The teacher explains just what all that means. She demonstrates how to compare the two shapes to prove they are similar.
Curated OER
Area of a Trapezoid
Find the area of a trapezoid. The instructor goes through a discussion of defining a trapezoid, the ways to identify the height and base, and then calculates the area of the trapezoid. This visual exploration should solidify this concept...
Curated OER
How Do You Find the Lateral and Surface Areas of a Regular Pyramid?
A regular pyramid has four equal triangular shaped sides and a square base. The lateral area is comprised of the area of the four triangular sides. The surface area is the area of the four triangular sides plus the area of the base....
Curated OER
What Does Congruent Mean?
Two figures are congruent if they have the same size and shape. Line segments can also be congruent if they are of the same length. Vertical angles created by intersecting lines are always congruent. Polygons that have matching angles...
Curated OER
Types of Polygons - Geometry Help
If it has three sides it's a triangle! Learn about the different types of polygons and how they are classified by the number of sides they have. This clip clearly defines each type of polygon, but fails to show examples.
PBS
Pbs Learning Media: Real Life Math: Woodworker
Listen to a master craftsman explain many of the ways that mathematics is used in woodworking, including number operations; geometry; ratios and proportions; and measurement. In the accompanying activity, students will draw a scale...
PBS
Pbs Kids: Shopping With Teens
A learning module that includes math concepts such as: shapes, colors, addition, and money. Students will guide the characters to pick out items with the correct shape or color. Help the characters add the total and pay for the items.
PBS
Pbs Kids: Super Peg and Cat Guy
Save the day with Super Peg and Cat Guy in this learning module. In order to save the day, this dynamic duo will have to use their super powers and problem solving skills to prevent bad guys from creating havoc in the city. Explore basic...
PBS
Pbs Kids: Knights of the Round Table
Go on a shape hunt to get back jewels that were lost! During the hunt, students will learn more about the properties of the shapes they are looking for in the river. Module also includes songs about shapes.
PBS
Pbs Kids: Hair Do's
Style hair while learning shapes too! Students can practice identifying shapes with this learning module.
Khan Academy
Khan Academy: Cousin Fal's Shape Collection
Sal helps his cousin classify shapes based on their number of sides, number of corners, and side-lengths. Includes a video, transcript, and question and answer section. [4:18]
Khan Academy
Khan Academy: Recognizing Shapes
Sal gives compares the attributes of different shapes. Includes a video, transcript, and question and answer section. [6:08]
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Sal determines if shapes are divided into 2 or 4 equal sections. Includes a video, transcript, and question and answer section. [3:04]
Khan Academy
Khan Academy: Composing Shapes
Watch how Sal combines shapes to make other shapes. Includes a video, transcript, and question and answer section. [2:03]
Other
3d Shapes for Children to Learn
In this video a train carries 3d shapes (geometric solids) to the construction site.
Sophia Learning
Sophia: Two Dimensions: Lesson 7
This lesson will explore the definition, depiction, and location of three dimensional objects. It is 7 of 7 in the series titled "Two Dimensions."
Charlotte Mecklenburg Library
Story Place: Story of Shapes
This engaging tutorial shows students an example of a square, triangle, circle, and star.
Massachusetts Institute of Technology
Mit: Science Out Loud: Trippy Shapes
In school, we learn about shapes with sides and edges - but there are weird shapes out there (beyond our 3 dimensions) that defy our normal idea of geometry. QuanQuan and Jenny explain, knit, and 3D print their way through trippy shapes!...
CK-12 Foundation
Ck 12: Elem Math: Overview of Basic 3 D Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of three dimensional figures.
CK-12 Foundation
Ck 12: Elem Math: Overview of Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on various two dimensional shapes including rectangles, squares, circles and triangles.
CK-12 Foundation
Ck 12: Elem Math: Overview of Lines Curves Vertices and Sides of 2 D Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on lines, curves and vertices of two dimensional shapes.
CK-12 Foundation
Ck 12: Elem Math: Overview of Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of rectangles, squares, circles and triangles.