Instructional Video4:44
Curated Video

Representing Fractions as Sums of Unit Fractions Using a Number Line

K - 5th
In this video, students learn how to represent fractions as a sum of unit fractions using a number line. The video explains that fractions represent exact numbers on a number line, and demonstrates how to divide the distance between 0...
Instructional Video3:24
Curated Video

Estimating the Addition of Fractions with Unlike Denominators Using Benchmark Fractions

K - 5th
In this video, the teacher explains how to estimate the addition of fractions using benchmark fractions. By visualizing 1/2 as a reference point, students can determine whether their answer should be larger or smaller than 1/2 based on...
Instructional Video4:10
Curated Video

Multiplying Fractions by Fractions: Using Visual Representations

K - 5th
In this video, the teacher explains how to multiply fractions by fractions using visual representations. The example used is dividing a half of a candy bar into four equal parts to determine how much should be eaten each day.
Instructional Video3:06
Curated Video

Multiplication and the Distributive Property

K - 5th
This video introduces the concept of the distributive property and shows how it can be used to solve multiplication problems. It explains the common mistake of not distributing the number outside the parentheses to all the numbers inside...
Instructional Video3:09
Curated Video

Solving Word Problems with Addition of Fractions Using Models

K - 5th
In this video, the teacher explains how to solve word problems involving addition of fractions with unlike denominators using models. The teacher emphasizes the importance of not adding the denominators and demonstrates how to visually...
Instructional Video5:02
Curated Video

Multiplying Fractions with Fractions: Finding Parts

K - 5th
In this lesson, mathematicians will learn how to multiply fractions with fractions by understanding that it represents finding a part of a part. By using visual representations and examples, students will grasp the concept of multiplying...
Instructional Video3:56
Curated Video

Comparing Fractional Pieces with Different Shapes

K - 5th
This video explains how fractional pieces that have different shapes can still be equivalent. By using cake models, the teacher demonstrates that one fourth of a rectangle and one fourth of a triangle are both equal to one fourth of a...
Instructional Video6:06
Curated Video

Measuring Angles Using Fractions of a Circle

K - 5th
This video lesson teaches students how to measure angles using fractions of a circle. It explains the concept of angles and right angles, and demonstrates how to use a sprinkler on a field to visualize and calculate angle measurements....
Instructional Video5:02
Curated Video

Simplifying Positive Integer Powers of I using Remainders

K - 5th
In this lesson, students will learn how to simplify positive integer powers of the imaginary unit, "i". By considering the remainder when the exponent is divided by 4, students can easily determine the simplified value. The lesson...
Instructional Video5:00
Curated Video

Dividing Mixed Numbers by Fractions by Multiplying by the Reciprocal

K - 5th
In this video lesson, students learn how to divide mixed numbers by fractions by multiplying by the reciprocal. The teacher explains the concept using real-life examples and models, demonstrating different strategies for solving division...
Instructional Video7:45
Curated Video

Determining the Reasonableness of Sums and Differences Using Benchmark Fractions

K - 5th
In this video, students learn how to determine the reasonableness of sums and differences involving fractions by using benchmark fractions. They are introduced to the concept of benchmark fractions, which are commonly used fractions with...
Instructional Video5:49
Curated Video

Showing Unit Fractions on a Number Line

K - 5th
In this video, the teacher explains how to show unit fractions on a number line. They use examples of dividing a pizza and sharing a licorice stick to demonstrate the concept.
Instructional Video5:01
Curated Video

Comparing Fractions to Benchmark Fraction 1/4

K - 5th
In this video, students will learn how to compare fractions to the benchmark fraction, 1/4, using visual models. They will understand the concept of numerator and denominator and how they represent part of a whole. Through examples and...
Instructional Video4:09
Curated Video

Finding Common Denominators Using Number Lines

K - 5th
In this lesson, students will learn how to find a common denominator for fractions with unlike denominators by creating number lines. By dividing each fraction's parts into equal divisions, they can determine a common denominator.
Instructional Video6:20
Curated Video

Subtracting Mixed Numbers with Unlike Denominators Using Area Models

K - 5th
In this lesson, students will learn how to subtract mixed numbers with unlike denominators by creating area models. The lesson emphasizes the importance of having a common unit when adding or subtracting numbers, and provides...
Instructional Video4:46
Curated Video

Dividing Whole Numbers by Fractions: Multiplying by the Reciprocal

K - 5th
In this lesson, students will learn how to divide whole numbers by fractions by multiplying by the reciprocal. They will understand the concept through models and examples, and also learn how to use multiplication to solve fraction...
Instructional Video4:11
Curated Video

Finding the Product of a Fraction and a Mixed Number Using Area Models

K - 5th
In this video, the teacher explains how to find the product of a fraction and a mixed number using area models. They emphasize the importance of converting the mixed number to an improper fraction and demonstrate the process step by step.
Instructional Video2:23
Curated Video

Counting Unit Fractions Using Equal Shares

K - 5th
This lesson helps students develop a solid foundation in understanding fractions and their relationship to whole numbers. By visually dividing the shapes into equal parts and shading the appropriate fractions, students will gain a clear...
Instructional Video9:23
Brian McLogan

Learn how to use the trapezoidal rule with 4 sub intervals

12th - Higher Ed
👉 Learn how to approximate the integral of a function using the trapezoid area approximation. Reimann sum is an approximation of the area under a curve or between two curves by dividing it into multiple simple shapes like rectangles and...
Instructional Video29:07
Music Matters

Composing a Two-Part Invention - Music Composition

9th - 12th
Learn how to compose a two-part invention and deal with counterpoint and contrapuntal writing. This music composition lesson demonstrates how to add a second part to a given part in order to create an example of a two-part invention. The...
Instructional Video5:01
Curated Video

Dividing Whole Numbers by Unit Fractions Using a Number Line

K - 5th
In this video, students learn how to divide whole numbers by unit fractions using a number line. Through visual examples, they understand the concept of dividing an amount into equal groups and determine the number of groups that can be...
Instructional Video3:12
Curated Video

Comparing Fractions: Using Area Models

K - 5th
In this video, students learn how to compare fractions with different denominators using visual fraction models. We demonstrate the concept by showing visual representations of fractions and comparing their shaded areas. Students are...
Instructional Video5:55
Brian McLogan

Find the Given Angle Given its Coordinate on the Unit Circle

12th - Higher Ed
👉 Learn how to evaluate the inverse of reciprocal trigonometric functions. Recall that the reciprocal trigonometric functions are given by the ratio of 1 and the corresponding trigonometric function. When an angle is unknown but the...
Instructional Video3:55
Curated Video

Computing Quotients of Fractions: Solving Real World Word Problems

K - 5th
In this lesson, students will learn the key terms like dividend, divisor, and quotient, and how they relate to real-world scenarios. Through modeling and visual representation, students will develop the skills to determine the number of...