Instructional Video3:47
Curated Video

Finding the Area of a Rectangle by Multiplying Length by Width

K - 5th
In this video, students will learn how to find the area of a rectangle by multiplying the length by the width. The concept of area being the number of square units needed to cover a region is explained, and the misconception of adding...
Instructional Video5:16
Curated Video

Finding the Area of a Polygon Using Smaller Rectangles

K - 5th
In this video, the teacher explains how to find the area of a polygon by breaking it down into smaller rectangles and adding their areas together. The teacher emphasizes the importance of understanding that area is not simply the...
Instructional Video7:44
Curated Video

Exploring Patterns and Writing Explicit Expressions

K - 5th
In this video, the teacher explains how to define an explicit expression by exploring patterns. They demonstrate how to find the rate of change and initial value in linear equations, and use these values to write the explicit expression.
Instructional Video3:32
Curated Video

Finding the Area of a Parallelogram by Decomposing into a Rectangle

K - 5th
This video emphasizes the importance of multiplying the length and width to find the area of a rectangle, rather than mistakenly multiplying two sides of a parallelogram. The lesson also highlights the need for the height to be...
Instructional Video13:27
Curated Video

Finding the Area of Composite Figures

9th - 12th
This lesson and practice will review the steps using an organized list to find the area of composite figures. Students will learn that a composite figure is two or more two-dimensional shapes. Finding the area of each shape and adding...
Instructional Video5:12
Curated Video

Finding the Volume of a Rectangular Prism

K - 5th
This video, explains how to find the volume of a rectangular prism by developing a formula. Using the example of a moving truck, the teacher demonstrates how to calculate the number of 1 cubic foot boxes that can fit inside the truck....
Instructional Video4:27
Curated Video

Finding the Missing Side Length of a Rectangle

K - 5th
In this video, the teacher explains how to find the missing side length of a rectangle by dividing its area. Students learn to multiply and divide to calculate the width of the stripes or curtains based on the given area and known side...
Instructional Video3:59
Curated Video

Finding the Area of a Right Triangle by Composing a Rectangle

K - 5th
In this video lesson, students learn how to find the area of a right triangle by composing a rectangle. The teacher explains the concept of a right triangle being half of a rectangle and demonstrates how to find the area of a triangle by...
Instructional Video3:35
Curated Video

Finding the Area of a Rectangle: Applying the Formula

K - 5th
In this video, students learn how to find the area of a rectangle by applying a formula. The teacher explains the properties of a rectangle and emphasizes the importance of labeling the area correctly as square units.
Instructional Video2:16
Curated Video

Finding the Area of a Rectangle with Fractional Sides by Tiling

K - 5th
In this video, the teacher explains how to find the area of a rectangle with fractional sides using a tiling method. They demonstrate this by using a yard that is 3/4 mile wide and 2/5 mile long as an example.
Instructional Video4:34
Curated Video

Writing and Interpreting Expressions for Surface Area of Geometric Objects

K - 5th
In this video, students learn how to write and interpret expressions to calculate the surface area of geometric objects. The teacher emphasizes the importance of using the correct formulas and identifies the visible and hidden surfaces...
Instructional Video5:59
Curated Video

Finding the Volume of a Rectangular Prism with Unit Cubes

K - 5th
In this video, the teacher explains how to find the volume of a rectangular prism by filling it with unit cubes. They discuss the concepts of perimeter, area, and volume, using examples and visuals to help students understand.
Instructional Video5:19
Curated Video

Finding the Area of Complex Shapes

K - 5th
In this video lesson, students learn how to find the area of a complex shape by drawing rows and columns and counting the square units. The teacher explains the concept using various examples and emphasizes the importance of considering...
Instructional Video4:07
Curated Video

Rectangles: Same Perimeter, Different Area

K - 5th
Explore the concepts of perimeter and area and understand the difference between the two. Through examples and a chart, the teacher demonstrates how rectangles with different dimensions can have the same perimeter but varying areas,...
Instructional Video4:20
Curated Video

Finding Area: Decomposing and Summing Figures

K - 5th
In this video, the teacher explains how to find the area of different shapes by decomposing them into smaller rectangles and adding their areas together. The teacher demonstrates this process using examples of a dog pen and other shapes,...
Instructional Video5:27
Curated Video

Finding Missing Side Lengths of a Rectangle by Drawing Arrays

K - 5th
In this video, students learn how to find the length and width of a rectangle by using the area of the rectangle. The video explains the concept of area as the number of square units needed to cover a region and demonstrates how to find...
Instructional Video4:17
Curated Video

Finding the Area of Complex Shapes

K - 5th
In this video, students learn how to find the total area of a complex shape by breaking it down into simpler shapes and counting the square units. The video emphasizes the importance of finding the area of each individual shape and then...
Instructional Video4:43
Curated Video

Finding Area of a Rectangle by Decomposing It into Smaller Rectangles

K - 5th
This video teaches how to simplify finding the area of a rectangle by breaking it down into smaller rectangles. It explains how to use decomposition to turn one of the side measurements into smaller, easier-to-multiply numbers. The video...
Instructional Video5:01
Curated Video

Finding the Square Root of Perfect Squares

K - 5th
In this video, the teacher explains how to find the square root of numbers that are perfect squares. They introduce the square root symbol and explain that it represents the side length of the square formed by the perfect square. They...
Instructional Video3:22
Curated Video

Finding Perimeter of Squares and Rectangles with Missing Side Lengths

K - 5th
In this video, the teacher explains how to find the perimeter of a square or rectangle with a missing side length by using square tiles. The teacher emphasizes the difference between area and perimeter and demonstrates how to determine...
Instructional Video3:38
Curated Video

Understanding Measurement: Area, Surface Area, and Volume

K - 5th
In this video, the teacher explains how to determine whether to measure in square units (area), surface area, or cubic units (volume) in different situations. They provide examples and clarify that area is used for 2D objects, surface...
Instructional Video4:42
Curated Video

Finding the Area of Trapezoids by Composing a Parallelogram

K - 5th
In this video, we demonstrate how to find the area of a trapezoid using parallelograms. We emphasize the importance of remembering to find the area of the original trapezoid after decomposing it.
Instructional Video5:20
Curated Video

Using the Distributive Property with Area Models

K - 5th
In this lesson, students will understand that breaking down a multiplication problem into smaller parts and then combining them can help solve the problem more easily. Through examples and practice, students will gain a solid...
Instructional Video3:12
Curated Video

Finding Surface Area of Cubes and Prisms Using Formulas

K - 5th
In this video, students will learn how to find the surface area of cubes and prisms using formulas. The teacher explains the concept of area and how it relates to surface area. The lesson also introduces a formula that simplifies the...