Curated Video
GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Proportion/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...
Bozeman Science
Human Population Impacts
In this video Paul Andersen talks about the impacts of human growth on the environment and on themselves. The population, affluence, and destructive technology of a population impact the environment according to the IPAT equation. An...
Bozeman Science
Catalyst Classes
In this video Paul Andersen explains how the three types of catalyst classes act to speed up reactions. Acid-base catalysts either add or remove a proton from one of the reactants. Surface catalysts provide active sites where reactants...
Curated Video
GCSE Maths - Proportional division #86
This video covers: - How to divide an amount between multiple individuals using proportion division This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher -...
Curated Video
Solving Ratio and Percent Problems using Proportions
This video explains how to solve ratio and percent problems using proportions. It provides examples and demonstrates how to set up known ratios and use the multiplicative relationship within a proportion to find the unknown values. The...
Programming Electronics Academy
Ohm's Law and Simple Math: Base Electronics: 1
An introduction to Ohm's Law and the basic math needed to understand it.
Curated Video
A2 English Listening Practice - Motivation
This video serves as English listening comprehension practice for lower-level students. In this video, a native English speaker talks slowly and clearly about the topic of motivation. The subtitles are included at the bottom of the...
Curated Video
Inverse Proportion | Ratio & Proportions | Maths | FuseSchool
Inverse Proportion | Ratio & Proportions | Maths | FuseSchool In this video, we are going to be looking at Inverse proportion. You may have already looked at direct proportion, which is how we describe the relationship between two...
Ancient Lights Media
Taiwan
Video Atlas of Asia: This clip looks at the physical features, climate and culture of Taiwan.
Curated Video
Determining Proportional Relationships Using Tables
Learn how to determine if ratios are proportional by reading tables. Compare ratios of points scored by different players in a basketball game. Understand the importance of multiplying between ratios instead of adding within them to...
Curated Video
Reasoning with Ratios for a Recipe | 6.RP.A.3
In this math video we will be reasoning with ratios for a recipe. We will be provided with 3 ingredients to a cookie recipe and we will be asked to identify ratios of ingredients where we either double, triple, or possibly halve the...
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...
Curated Video
Determining Parallel Lines with Proportional Triangles
In this lesson, students will learn how to determine if a fence is parallel to a river by analyzing a diagram. By measuring the sides of triangles and comparing their ratios, they can determine if the fence is parallel.
TED Talks
Tal Danino: Programming bacteria to detect cancer (and maybe treat it)
Liver cancer is one of the most difficult cancers to detect, but synthetic biologist Tal Danino had a left-field thought: What if we could create a probiotic, edible bacteria that was "programmed" to find liver tumors? His insight...
Science360
Science Behind The News: Crowdsourcing
When humans and computers work together, they can find solutions to many different types of problems. Luis von Ahn, a computer science professor at Carnegie Mellon University, explains the science behind crowdsourcing and how the concept...
Curated Video
I WONDER - Are Goats Good At Climbing?
This video is answering the question of are goats good at climbing.
Mr. Beat
How To Get Directions in Google Earth
Here is a short video about how to get directions by driving, walking, or biking, in Google Earth.
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
GCSE Maths - What are Ratios & How to Simplify Them (Part 1) #81
This video covers: - How ratios work and how to find ratios - How to simplify ratios This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your...
Brian McLogan
How to solve a proportion using the cross product
👉 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...
Brian McLogan
How to use proportions for direct variation to solve for x
👉 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...
Brian McLogan
Tutorial-Solve a proportion when the variable is in denominator and numerator ex 16, (3+2x)/(3–2x)=3
Tutorial-Solve a proportion when the variable is in denominator and numerator ex 16, (3+2x)/(3–2x)=3
Curated Video
Constant of Proportionality
Identify the constant of proportionality when given a table or a graph.