Curated Video
Converting Unit Fractions to Terminating Decimals
In this video, the teacher explains how to convert unit fractions into terminating decimals using the standard algorithm for division. The teacher provides two strategies for finding the decimal form of a unit fraction: finding an...
Curated Video
Showing Fractions on a Number Line
In this video, students learn how to show fractions on a number line by dividing the line into equal parts. The teacher uses examples of dividing a candy bar and measuring a distance to explain the concept.
Curated Video
Multiplying Fractions by Fractions: Using Visual Representations
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.
Brian McLogan
Adding two functions and finding the domain rational and radical
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions...
Curated Video
Multiplication and the Distributive Property
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...
Curated Video
Counting Fractions of One Whole Using Fraction Strips
This video provides examples of partitioning different shapes into equal shares and counting the fractions. It emphasizes the importance of equal-sized shares when determining fractions and demonstrates how to write fractions using...
Curated Video
Cracking Hydrocarbons: How and Why We Do It
The video discusses the process of hydrocarbon cracking and its purpose, which is to convert heavier, longer chain hydrocarbons into smaller chain hydrocarbons. The video explains two ways to crack hydrocarbons: catalytic cracking and...
Curated Video
Dividing Whole Numbers by Unit Fractions
In this video, the teacher explains how to divide a whole number by a unit fraction. They demonstrate the concept using examples and visuals, emphasizing the idea of dividing a whole into equal-sized pieces.
Curated Video
Multiplying Fractions with Fractions: Finding Parts
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...
Curated Video
Finding Fractional Parts of a Whole: Using Diagrams and Measurement Scales
In this video lesson, students learn how to find fractional parts of a whole by representing distance measurements using diagrams and measurement scales. The teacher explains the concepts of numerators and denominators in fractions, and...
Curated Video
Comparing Fractional Pieces with Different Shapes
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...
Curated Video
Multiplying a Whole Number by a Fraction
In this video, students learn how to multiply a whole number by a fraction by understanding it as repeated addition. The teacher explains the concept using examples and visuals, showing how to solve multiplication problems involving...
Curated Video
Measuring Angles Using Fractions of a Circle
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....
Why U
Pre-Algebra 32 - Irrational Numbers
Although the Greeks initially thought all numeric qualities could be represented by the ratio of two integers, i.e. rational numbers, we now know that not all numbers are rational. How do we know this?
Brian McLogan
How to add, subtract, multiply and divide fractions, 2/3 + 3/5
👉 Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract fractions having the same denominator, we add the numerators and retain the (common) denominator. This is...
Curated Video
Dividing Whole Numbers by Unit Fractions: Using Models
In this lesson, students will learn how to divide whole numbers by unit fractions using a model. By visualizing the problem and representing the whole numbers as rectangular holes, students can easily understand the concept. They will...
Curated Video
Showing Unit Fractions on a Number Line
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.
Curated Video
Dividing Fractions by Whole Numbers
In this video, the teacher explains how to divide a fraction by a whole number by thinking about equal groups. Using the example of dividing apples, the teacher demonstrates that dividing fractions by whole numbers requires understanding...
Curated Video
Comparing Fractions to Benchmark Fraction 1/4
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...
Curated Video
Representing Values to the Thousandths with Base 10 Blocks and Fractions
In this video, the teacher explains how to represent values to the thousandths using base 10 blocks and fractions. They demonstrate how decimal notation and decimal fractions can be used to represent values in different place value...
Curated Video
Dividing Whole Numbers by Non-Unit Fractions Using a Number Line
In this video lesson, students learn how to divide whole numbers by non-unit fractions using a number line. The teacher uses real-life examples, such as dividing packs of pencils and cupcakes, to demonstrate the concept.
Curated Video
Understanding Efficiency: Examples and Equations
In this video, the concept of efficiency is discussed in relation to devices that transfer energy from one form to another. The video provides three examples of calculating efficiency, including a light bulb, a speaker, and an electric...
Curated Video
Finding Common Denominators Using Number Lines
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.
Curated Video
Dividing Whole Numbers by Fractions: Multiplying by the Reciprocal
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...