Instructional Video3:50
Curated Video

Area, Right Triangle: T-Chart

K - 8th
Find the Area of a Right Triangle Using a T-Chart finds the area of a right triangle by using a T chart to describe both the mathematical operations and the written explanations.
Instructional Video4:33
Curated Video

Area: Isosceles Triangle

3rd - Higher Ed
Area: Isosceles Triangle finds the area of an isosceles triangle by using a T chart to describe both the mathematical operations and the written explanations.
Instructional Video4:06
Curated Video

Area: Equilateral Triangle

K - 8th
Area: Equilateral Triangle finds the area of an equilateral triangle by using a T chart to describe both the mathematical operations and the written explanations.
Instructional Video4:59
Curated Video

Same Area, Different Perimeter

K - 8th
“Same Area, Different Perimeter” explains how rectangles that have the same area can have different perimeters.
Instructional Video6:25
Curated Video

Exploring Recursive Processes in Patterns

K - 5th
In this video, the teacher explains the concept of a recursive process by exploring patterns in linear and nonlinear relationships. They use examples of rectangles and l-shaped figures to demonstrate how the pattern can be extended and...
Instructional Video3:38
Curated Video

Understanding Area, Surface Area, and Volume: Choosing the Right Units

K - 5th
In this video, the teacher explains how to determine whether to find area, surface area, or volume in different situations by considering the units needed. The video provides examples and explanations for each measurement type, making it...
Instructional Video5:45
Curated Video

Finding Dimensions of Figures Formed by Removing Squares

K - 5th
In this video, students learn how to find the dimensions of a figure formed when removing a smaller square from a larger square. The teacher explains the concept of polynomial identities and demonstrates how to use them to find the...
Instructional Video2:32
Curated Video

Measuring Area with Grid Paper

K - 5th
In this video, students learn how to measure the area of shapes using grid paper. The video emphasizes the importance of focusing on the area of the shape on the grid paper, rather than the entire grid paper itself.
Instructional Video5:33
Curated Video

Finding Length of Unknown Sides: Area and Perimeter of Rectangles

K - 5th
In this video, we learn how to find the area and perimeter of a rectangle when the length of every side is not known. The teacher explains the formulas for calculating perimeter and area, and demonstrates how to use these formulas to...
Instructional Video6:30
Curated Video

Apply the Area of Squares Proof to determine if a triangle is a right triangle

K - 5th
In this lesson you will learn how to determine if a triangle is a right triangle by applying the Area of Squares Proof.
Instructional Video3:23
Curated Video

Understanding Multiplication as Area: Using a Multiplication Table

K - 5th
In this lesson, students will learn how to represent products as areas using a multiplication table. They will understand that the product of two factors can be found by matching the row and column of the multiplication table.
Instructional Video5:26
Curated Video

Polynomial Identity and Combined Area of Consecutive Squares

K - 5th
In this video lesson, students will learn how to describe the combined area of two squares using consecutive integers. They will explore polynomial identities and how to write expressions to represent the relationship between consecutive...
Instructional Video3:24
Curated Video

Finding Area Using Multiplication: Understanding Length and Width

K - 5th
This video lesson teaches students how to find the area of a polygon by multiplying the length and width. It explains the concept of area and reviews the use of arrays for multiplication. The video also emphasizes the importance of not...
Instructional Video4:40
Catalyst University

Fick's First Law (2): Flux and Concentration Gradient With Example #1

Higher Ed
Fick's First Law (2): Flux and Concentration Gradient With Example #1
Instructional Video4:54
Curated Video

Completing the Square in Quadratic Expressions with Leading Coefficient Not Equal to 1: Area Model

K - 5th
In this video, the teacher uses area blocks to visually represent the polynomial and demonstrates how to rearrange the blocks to form completed squares. By adding and subtracting blocks, the teacher shows how the expression can be...
Instructional Video6:15
Curated Video

Using Scale Factors to Find the Area of Scale Drawings

K - 5th
In this video, the teacher explains how to use a scale factor to find the area of a scale drawing. They demonstrate how multiplying the length and width of the original figure by the scale factor does not generate the scaled area....
Instructional Video3:53
Curated Video

Applying Formulas for Area and Surface Area in Real World Problems

K - 5th
In this video, you will learn how to evaluate expressions for the area of a square and the surface area of a cube. By understanding the formulas and applying them to real-world problems, you will be able to calculate the area of a square...
Instructional Video6:02
Curated Video

Finding the Area of a Scaled Drawing

K - 5th
This video explains how to find the area of a scaled drawing by using scaled dimensions. It demonstrates how to multiply the length and width of a scaled rectangle to find the scaled area. The video also emphasizes the importance of...
Instructional Video5:17
Curated Video

Finding the Area of a Rectangle Using Area Models

K - 5th
In this video, students learn how to find the area of a rectangular garden by using area models. The teacher explains the concept of area and the formula for finding it, as well as the difference between area and perimeter.
Instructional Video2:26
Curated Video

Finding Unknown Lengths and Widths of Rectangles Using Mathematical Reasoning

K - 5th
In this video, the teacher explains how to find unknown lengths and widths of rectangles by applying mathematical reasoning to a known area. They demonstrate this concept using examples and guide students through solving problems...
Instructional Video4:18
Curated Video

Finding Areas of Rectangles Using Mathematical Reasoning

K - 5th
In this video, the teacher explains how to find the area of rectangles by multiplying the length and width. They also discuss the concept of perimeter and how to use mathematical reasoning to solve problems involving rectangles.
Instructional Video4:17
Curated Video

Decomposing Rectangles

K - 5th
In this lesson, students will learn how to decompose rectangles using benchmark numbers. Benchmark numbers help make estimating easier, and by decomposing the array, students can break it down into smaller parts to better understand the...
Instructional Video0:48
Visual Learning Systems

Perimeter and Area: What Is Area?

9th - 12th
In this series of programs students are introduced to perimeter and area. Easy-to-understand examples enable students to understand the process by which perimeter is calculated. The area of rectangles, parallelograms, and triangles is...
Instructional Video4:38
Curated Video

Rectangles: Same Area, Different Perimeter

K - 5th
In this video, the teacher explains that rectangles can have the same area but different perimeter. The concept is demonstrated through building rectangles and organizing the information into a chart.