Khan Academy
Example 1: Multiplying Two Monomials with a Single Variable, Algebra I
Multiply polynomials with Sal Khan! In this one-minute video, Sal describes what a monomial is, and how it can be used to express the area of a rectangle.
Flipped Math
Parallelograms and Triangles
Expand area problems to incorporate prior knowledge. Pupils begin by reviewing the formulas for finding the area of parallelograms and triangles. The scholars apply previous learning of trigonometric ratios and the Pythagorean Theorem to...
Mathispower4u
Find the Height of a Rectangle Given the Area (Example)
Just how long is that rectangle? Pupils watch a short example on finding the base of a rectangle. The video shows how to use the formula for area to solve for an unknown measure knowing the other two.
Krista King Math
Dimensions That Maximize the Area of the Rectangle
Opt to learn about optimization. Young mathematicians view an educational video that posits the question: For a given perimeter, what are the dimensions that maximum the area of a rectangle? With the use of optimization skills, they...
Mathispower4u
Determine the Area of a Shaded Region Using a Polynomial (Example)
Looking at area with a hole. Using algebraic expressions as dimensions, learners see how to calculate the area of a rectangle that contains a square hole. The instructional video shows how to create a single expression for the area of...
Mathispower4u
Express an Area as an Expression by Decomposing Area (Example)
Cut the area into two. Pupils see how to use algebraic expressions to find the area of a composite figure. The video breaks the figure into two rectangles and finds the missing lengths to find the area. After multiplying the dimensions,...
Mathispower4u
Find the Area of a Rectangle Using a Polynomial (Example)
Apply polynomial multiplication to area. The short video in a large series shows the process of creating a polynomial formula for the area of a rectangle. Using the two expressions for the length and width of a rectangle, pupils see how...
Corbett Maths
Area under a Graph
What? The calculation of area is a linear distance? A short video shows how to use the areas of simple polygons to estimate the area under a graph. Pupils divide the area under a curve into figures to easier calculate the area. Given...
PBS
Graffiti Art: Supplies
Just how much spray paint does a mural require? Using proportions, graffiti artists determine the amount of supplies needed to complete a mural. The creative resource shows how to determine the area of composite figures and uses that...
Corbett Maths
Area of a Rectangle
Model finding the area of a rectangle using a helpful video lesson. Young scholars watch as the instructor shows how to find the area of a rectangle. Additionally, the instructor shows how to calculate the length or width when given the...
Corbett Maths
Area of an L-Shape
Think about your shapes as tangrams as you find their areas! Scholars learn to decompose L-shaped compound figures to find their areas. A video shows how to break the figure into rectangles, and learners practice using the included...
Corbett Maths
Area of a Shape on a Grid
What does a grid have to do with area? Well, just about everything! Learners view composite shapes on a grid and watch as the video instructor finds their areas. The examples use shapes composed of rectangles and triangles. Scholars...
Corbett Maths
Area of Compound Shapes
Composite figures—because everything isn't shaped like a rectangle, triangle, or circle. Learners practice separating compound shapes into something more manageable. A video shows them how to make the calculations, and worksheets give...
CK-12 Foundation
Area and Perimeter of Rectangles: Lesson
Around and in—take a different look at rectangles. A portion of a basic geometry playlist discusses the area and perimeters of rectangles. Using the formulas, the presentation works perimeter and area examples with rectangles and squares.
CK-12 Foundation
Area of a Parallelogram: Lesson
Sliding over a corner makes a rectangle. The resource demonstrates why the formula of the area of a parallelogram works. As part of a larger playlist on basic geometry, the video works examples dealing with parallelogram areas.
Math Antics
Area
Area is a two-dimensional measurement for a two-dimensional figure. The introduction of area expands on the idea of the one-dimensional measurement of length, but instead of staying one-dimensional, it goes in two directions. The video...
Mathed Up!
Area of Compound Shapes
Scholars learn how to determine the area of compound shapes by finding the areas of the basic shapes that make it up. Pupils find the areas by adding areas together or subtracting them.
Educator.com
Finding The Area Under a Curve Using Rectangles
Here's an AP Calculus video that provides a discussion on determining an approximate for the area under a curve by calculating the sum of areas of rectangles that is smaller than the area and by finding the sum of areas of...
Krista King Math
Area of Rectangles Using Sums and Differences
Use the formula for the area of a rectangle for more than just rectangles! Scholars see that they can use common area formulas to find the area of irregular shapes.
Krista King Math
Area of Rectangles
A critical skill in mathematics is using formulas to solve problems. Learners see the area formula for rectangles applied to three different types of problems. The video instructor demonstrates problems represented with a diagram,...
Curated OER
How Do You Find the Volume of a Rectangular Prism?
Do you know the formula needed to determine the area of a rectangular prism? If you don't it's ok, because this video will refresh your memory, then help you use the formula to find the volume of a rectangular prism. Algebra is used to...
Curated OER
What is the Formula for the Area of a Rectangle?
Area=Length x Width. Locate the value of the length of the rectangle and locate the given width and plug them in to solve. Don't forget to include the units and multiply them.
Curated OER
How Do You Find the Area of a Rectangle?
Area=Length x Width. Locate the value of the length of the rectangle and locate the given width and plug them in to solve. Don't forget to include the units and multiply them too.
Curated OER
Area of a Rectangle - Geometry Help
How on earth is one to find the area of a rectangle when he doesn't know the width? Using the diagonal of the rectangle, the length, and the Pythagorean Theorem the missing side is determined and the area is discovered. This clip is...