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Mathematics
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Mean Median Mode and Range Explained (Updated 4K version)
This is an updated version of our video explaining how to find the mean, median, mode and range. Practice questions and answers are at the end of the video.
Skip to:
00:00 Introduction
00:20 How to find the mean
00:52 How to find the median
01:27 How to find the mode
01:52 How to find the range
02:18 Example question
03:23 Practice question
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Order of Operations: BIDMAS|BODMAS|PEDMAS
This video explains what order of operations means and what the acronyms BODMAS, BIDMAS and PEDMAS stand for.
Practice questions are provided at the end of the video.
This is a link to our YouTube video which you can use during your maths lessons.
We provide free educational maths help videos to learn mathematics for school, exams revision etc. We add new videos to our channel weekly.
![minitymaths](https://d2w4qhtqw2dbsq.cloudfront.net/profile_live/28743863/small.jpg)
Pythagoras' Theorem Introduction Lesson: Video
This video provides an introduction to Pythagoras’ Theorem and explains why it is useful to know Pythagoras’ Theorem.
Practice questions are provided at the end of the video.
This is a link to our YouTube video which you can use during your maths lessons.
We provide free educational maths help videos to learn mathematics for school, exams revision etc. We add new videos to our channel weekly.
![minitymaths](https://d2w4qhtqw2dbsq.cloudfront.net/profile_live/28743863/small.jpg)
Algebra Basics Introduction Lesson: Video
This video provides an introduction to the basic concepts students need to learn for algebra such as subtracting a negative number/value or adding a negative number/value.
Practice questions are provided at the end of the video.
This is a link to our YouTube video which you can use during your maths lessons.
We provide free educational maths help videos to learn mathematics for school, exams revision etc. We add new videos to our channel weekly.
![minitymaths](https://d2w4qhtqw2dbsq.cloudfront.net/profile_live/28743863/small.jpg)
Mean, Median, Mode and Range: Statistics Video
This video explains how to find the mean, median, mode and range. There are practice questions at the end of the video.
This is a link to our YouTube video which you can use during your maths lessons.
We provide free educational maths help videos to learn mathematics for school, exams revision etc. We add new videos to our channel weekly.
![minitymaths](https://d2w4qhtqw2dbsq.cloudfront.net/profile_live/28743863/small.jpg)
Why Does Pythagoras' Theorem Work? Animated Proof
This video is an animated proof, showing how Pythagoras’ Theorem works.
This is a link to our YouTube video which you can use during your maths lessons.
We provide free educational maths videos for school, exams, revision etc. We add new videos to our channel weekly.
![minitymaths](https://d2w4qhtqw2dbsq.cloudfront.net/profile_live/28743863/small.jpg)
Video: Finding Equivalent Fractions and Simplifying Fractions
Fractions: This video will explain finding equivalent fractions and simplifying fractions. We also explain what a fraction is. Practice questions are provided at the end of the video.
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Video: Types of Angles
This video will explain the different types of angles in math. We explain acute angles, right angles, straight angles, obtuse angles, reflex angles and full rotations. Two sets of practice questions are at the end of the video for students to test their knowledge.
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Video: What Is A Surd | Understanding Surds
This is a link to an animated video explaining what a surd is. This video can be used as part of a wider lesson on surds. Understanding exactly what a surd is, is crucial to learn before moving onto manipulating/simplifying surds.
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Video: Simplifying Surds: Multiplication
This video explains what simplifying a surd means and how to simplify surds by multiplication. The three multiplication rules are explained with examples. Practice question at the end of the video.
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Probability Tree Diagrams
Link to YouTube Video: This video explains how to work with tree diagrams for probability. We explain how to use them to calculate probabilities for a combination of outcomes for more than one event and how to draw a tree diagram for a probability question.
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Visual Algebra: Rods
Visual Algebra Series Video One: This video explores a different way to think about and visualise algebra using rods. In this video we use the rods to visually represent unknown values. We explore forming expressions and equations using these rods. There are two practice puzzles at the end of the video.
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How To Simplify Ratios
This video explains how to simplify ratios, including how to simplify ratios that include decimal numbers, mixed units and fractions. We also explain how to get a ratio in the form 1:n or n:1. Make sure you have a go at all the practice questions at the end of the video.
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Video: How To Solve Algebra Word Problems
This video will explain how to solve algebra word problems. We explain how to form expressions and equations from wordy questions. The video starts off with simple examples, building up to the more complex age problems. Practice questions are provided throughout the video.
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How To Read Inequality Symbols
This video explains how to read inequality symbols; greater than and less than. We explain a quick tip to help you remember which one is which. Practice questions and answers are at the end of the video.
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Circumference of a Circle
This video will explain how to find the circumference of a circle given the diameter or the radius. We show you how the formula is actually derived.
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Rotational Symmetry of a Circle
This video explains why the order of rotational symmetry of a circle is infinite.
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Video: Sharing In A Given Ratio
This video explains sharing in a given ratio. Two sets of practice questions are provided at the end of the video.
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The Four Transformations In Maths
This video explains the four transformations in maths: translation, rotation, reflection and enlargement. Two sets of practice questions are provided at the end of the video.