Brian McLogan
Solving a rational equation as a proportion
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
KnowMo
Expressing Quantities as Fractions: Tips and Examples
The video provides a tutorial on expressing one quantity as a fraction of another. The presenter explains how to decide which number is the numerator and denominator, and how to simplify fractions. The video covers examples where...
FuseSchool
MATHS - Ratio - Scale Factors
When you change the size of a shape by making it larger or smaller, the degree to which you change its size is measured by something called its scale factor. A linear scale factor is simply the size of the enlargement or reduction of a...
Brian McLogan
Using trig properties to find the values of a right triangle
👉 Learn how to find a missing angle of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles gives us the relationship between the angles of a right...
Let's Tute
Some Stupid Math Mistakes: Refreshing Our Knowledge on Real Numbers
The video is a brief lesson on real numbers, including counting numbers, whole numbers, integers, rational and irrational numbers. The teacher provides examples and challenges the viewer with simple questions.
Professor Dave Explains
Lattice Structures in Ionic Solids
We've learned a lot about covalent compounds, but we haven't talked quite as much about ionic compounds in their solid state. These will adopt a highly ordered and repeating lattice structure, but the geometry of the lattice depends...
Brian McLogan
Solving a proportion by cross multiplication and inverse operations
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Curated Video
Percent Proportion: Finding Parts, Holes, and Percents
This video lesson will provide instruction on how to write and solve a percent proportion to find percents, parts or wholes. Proportional relationships will be reviewed, explained and connected to percents to solve multistep percent...
KnowMo
Maps and Scale Factors: Understanding Ratio and Real-World Applications
The video is a lecture presentation that explains maps and scale factors, their importance in reducing diagrams and objects to make them more manageable, and their real-world applications in design, architecture, orienteering, and...
Curated Video
Proportional Relationships in a Table (Part 2)
Determine if ratios in a table are proportional by testing for equivalent ratios.
Curated Video
Proportional Relationships in a Table (Part 1)
Determine if ratios in a table are proportional by testing for equivalent ratios.
Curated Video
Finding the Original Amount and Amount of Change Using Proportions and Equations
In this video, the teacher explains how to find the original amount and the amount of change given the percent of change in the final amount. Using proportions and equations, the teacher demonstrates how to calculate the price of an item...
Curated Video
Converting Distance Using Ratio Reasoning (Part 1)
Convert distance within the US customary system using ratio reasoning.
Brian McLogan
ACT SAT Prep How to determine the the missing value by setting up two proportions
ACT SAT Prep How to determine the the missing value by setting up two proportions
Curated Video
GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Ratio - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
What is the Fibonacci Sequence & the Golden Ratio? Simple Explanation and Examples in Everyday Life
The Fibonacci sequence is a series of numbers in which a given number is the addition of the two numbers before it. So, if you start with 0, the next number will be 1, followed by 1, followed by 2, followed by 3 and so on. As you can...
Curated Video
Simplifying Radical Expressions by Factoring
In this video, the teacher explains how to simplify radical expressions without using an area model. Learn how to factor to break down the radicals into their prime factors, and then simplify the expression by finding pairs or triples of...
Curated Video
Converting Distance Using Ratio Reasoning (Part 2)
Convert distance within the US customary system using ratio reasoning.
KnowMo
Introduction to Ratio
This video provides an introduction to ratios and explains what they are and how to write and simplify them. The presenter uses real-world examples to illustrate how ratios are used in everyday life, such as in baking and mixing cement....
Brian McLogan
What is an extended ratio
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Curated Video
GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Direct and Inverse Proportion - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Angles in Polygons - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
Find Sine Value Using Side Ratios
In this video, students learn how to find the sine value of an acute angle in a right triangle. It explains the properties of right triangles, such as the relationship between the hypotenuse and the legs, as well as the concept of...