Curated Video
GCSE Maths - What Are Simultaneous Equations #60
This video covers how to solve simultaneous equations. This is where you have two equations that both have 2 unknown variables, like the equations 2a + b = 5 and 3a + 2b = 9. The only way to solve these and find the missing variables (a...
Curated Video
GCSE Maths - What Does Inversely Proportional Mean? #91
This video covers: - What inverse proportion or inversely proportional means - What the relationship looks like on a graph - What the relationship looks like in an equation This video is suitable for maths courses around the world. KS3 -...
Curated Video
GCSE Maths - What are Reciprocal Graphs? #79
This video covers: - What a reciprocal equation is - What a reciprocal graph looks like - How reciprocal graph changes when you change the numbers. This video is suitable for maths courses around the world. KS3 - Not on your course GCSE...
Curated Video
GCSE Maths - What are Quadratic Graphs? #76
This video covers: - What quadratic equations are - What quadratic graphs look like - What difference it makes if the x^2 term is positive or negative This video is suitable for maths courses around the world. KS3 - All on your course...
Curated Video
GCSE Maths - What are Cubic Graphs & How to Plot Them #78
This video covers: - What a cubic graph is - What a cubic equation looks like - How to fill in a table of x and y coordinates to plot a cubic graph This video is suitable for maths courses around the world. KS3 - Not on your course GCSE...
Curated Video
GCSE Maths - Volumes of Cubes and Cuboids #110
This video covers how to calculate the volume of cubes and cuboids. It includes examples of each and a sample exam question. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on...
Curated Video
GCSE Maths - Rearranging Formulas Part 2 - When The Subject Appears Twice #49
This video covers how rearrange formulas to make a particular variable (letter) the subject, when that variable appears in the equation more than once. This video is suitable for maths courses around the world. KS3 - Not on your course...
Curated Video
GCSE Maths - Perpendicular Lines #75
This video explains what perpendicular means, how to check whether 2 lines are perpendicular to each other and how to find the gradient of a perpendicular line. This video is suitable for maths courses around the world. KS3 - All on your...
Curated Video
GCSE Maths - How to Write Algebraic Expressions for Directly Proportional Relationships #90
This video covers: - What direct proportion or directly proportional means - How to write expressions for directly proportional relationships This video is suitable for maths courses around the world. KS3 - All on your course GCSE...
Curated Video
GCSE Maths - How to Solve Simultaneous Equations - Using the Elimination Technique
This video covers how to use the elimination technique to solve simultaneous equations. 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...
Curated Video
GCSE Maths - How to Solve Algebraic Equations (Part 3 of 3) #45
This video covers how to solve harder algebraic equations, which only have variable on both sides of the equation and multiple operations. For example 2x + 3 = 5x - 9 This is part 3 of our 3 part series on solving algebraic equations....
Curated Video
GCSE Maths - How to Solve Algebraic Equations (Part 1 of 3) #43
This video covers how to solve the simplest algebraic equations, which only involve one operation. This is part 1 of our 3 part series on solving algebraic equations. This video is suitable for maths courses around the world. KS3 - All...
Curated Video
GCSE Maths - How to Rearrange Formulas #48
This video covers how rearrange formulas to make a particular variable (letter) the subject. For example 'Rearrange y = 3x + 4 to make x the subject'. This video is suitable for maths courses around the world. KS3 - All on your course...
Curated Video
GCSE Maths - How to Find the Gradient Using the Coordinates of Two Points #66
This video covers how to find a gradient using the coordinates of two points. E.g. how to find the gradient between the points (3, 2) and (-5, 6). This video is suitable for maths courses around the world. KS3 - All on your course GCSE...
Curated Video
GCSE Maths - How to Find the Area of Rectangles, Parallelograms, Triangles and Trapeziums #105
This video explains how to use the area formulas for rectangles, parallelograms, triangles and trapeziums. We also look at why the equations are so similar. This video is suitable for maths courses around the world. KS3 - All on your...
Curated Video
GCSE Maths - How to find the Area and Circumference of a Circle (Circles Part 1) #106
This video explains how to find the area and circumference of a circle using the radius or the diameter. 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
GCSE Maths - How Do You Plot A Quadratic Curve? #77
This video covers: - How to plot quadratic graphs - How to fill in a table of x and y coordinates This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All...
Curated Video
GCSE Maths - Finding the Equation of a Straight Line From 2 Sets of Coordinates #69
This video explains how to find the equation of a straight line, in the form of y = mx + c, when you're given the coordinates of 2 points that the line passes through. This video is suitable for maths courses around the world. KS3 - Not...
Curated Video
GCSE Maths - Expressions vs Equations #46
This video covers the differences between expressions and equations. The basic idea is that equations have an equals sign and can be solved, whereas expressions don't. This video is suitable for maths courses around the world. KS3 - All...
Curated Video
GCSE Maths - Common Straight Line Equations You NEED TO KNOW #64
This video covers the how to notice simple line equations on graphs, and the common ones you need to know. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE...
Curated Video
GCSE Maths - All the Trigonometry Equations you Need To know! #119
This video covers the basics of trigonometry. We cover the different equations you need to know to be able to fine missing sides, missing angles or areas of both non-right angle and right angle triangles. This video is suitable for maths...
Curated Video
GCSE Chemistry - The Mole (Higher Tier) #25
This video covers the term 'mole', explains 'Avogadros constant', and runs through examples of the sort of calculations you might have to do with moles. This video is suitable for: - Higher tier only - All exam boards - Triple and...
Curated Video
GCSE Chemistry - Rates of Reaction #46
In this video we'll look at: - Some examples of reactions that happen at different rates - The different ways we can calculate the rate of a reaction - Some examples of calculating the rate of reaction using decimetres cubed and minutes...
Curated Video
GCSE Chemistry - Moles, Concentration & Volume Calculations #29
This video covers: - How to use the moles = concentration x volume equation - A worked example using the above equation and molar ratios Exam board specific info: AQA - Higher tier only IGCSE Edexcel - Higher tier and separate science...