ProTeachersVideo
Inside Maths: Ratios and Proportions
KS4 maths: Fran challenges Dave to cook a dinner party for six, but when he is faced with too few ingredients he has to use ratios and proportions to sort things out. Fran has a dinner party which she wants Dave to prepare. When he heads...
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...
SciShow Kids
Soil Is Alive!
Jessi and Squeaks make a new friend named Grady, and he teaches them about all the living things you can find in soil!
Disciplinary Core Idea:
LS4.D: Biodiversity and Humans - There are many different kinds of living things in any area,...
SciShow
The Future of Air Travel
It used to be that you could get on a Concorde jet and fly across the Atlantic ocean faster than the speed of sound, but what does the future hold for supersonic flight?
Mazz Media
Acropolis
This live-action video program is about the word Acropolis. The program is designed to reinforce and support a student's comprehension and retention of the word Acropolis through use of video footage, photographs, diagrams and colorful,...
FuseSchool
BIOLOGY - Genetics - Mitosis
Mitosis produces identical copies of cells, and is involved in growth, cell repair and asexual reproduction - which is how simple organisms reproduce. When cells divide by mitosis, two new cells form and each cell is identical to one...
FuseSchool
MATHS - Ratio - Inverse Proportion
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 quantities which grow by the same scale factor.
Cerebellum
Ratio and Proportion
This video covers exam strategy, Ratio and Proportion. This is part 5 from the series 'Introduction to the Math Section of the SAT'.
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
How to Write a Proportion | 7.RP.A.2
In this math video we will learn how to write a proportion. We will understand that a proportion represents to equivalent ratios. In the given problem we will compare a given quantity to the cost. We will compare two different quantities...
Curated Video
Graphs of Proportional Relationships and Constant of Proportionality
In this video, the teacher explains how to identify proportional relationships in tables and graphs, and how to determine the constant of proportionality. The lesson includes examples and step-by-step instructions for finding 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...
Curated Video
Ratio Problems in Context | Ratio & Proportions | Maths | FuseSchool
Ratio Problems in Context | Ratio & Proportions | Maths | FuseSchool In this video we will learn how to solve ratio problems! CREDITS Animation & Design: Joshua Thomas jtmotion101@gmail.com Narration: Dale Bennett Script: Sevenoaks...
Curated Video
Scale Factors | Ratio & Proportions | Maths | FuseSchool
Scale Factors | Ratio & Proportions 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...
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
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
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
Brian McLogan
ACT SAT Prep Using ratios to determine the number of eggs needed to make muffins
ACT SAT Prep Using ratios to determine the number of eggs needed to make muffins
Kids Learning Videos
I'm Going to the Zoo! An Animal Sounds Song
We're At the Zoo! Come and look at these animals that we see at the Zoo. These animals all make different sounds. Listen closely to the animal sounds and you can hear the sounds that the animals make. Try to guess the different animals...
Brian McLogan
How to solve for y using similarity and proportions
Learn how to solve with similar polygons. Two polygons are said to be similar if the corresponding angles are congruent (equal). When two polygons are similar the corresponding sides are proportional. Knowledge of the length of the sides...
TED-Ed
TED-Ed: Do you have what it takes to freelance? | TED-Ed
A 2016 survey of freelancers in six countries found that those who freelance by choice– 70% of respondents– were happier than people in traditional jobs, specifically when it came to things like independence and flexibility in terms of...