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Mathematics
How many squares on a chessboard: activity pack
This activity pack is designed to help teachers guide students through the process of counting the total number of squares on a standard 8x8 chessboard. The activity provides a practical application of mathematical concepts such as arithmetic progression and summation.
Included:
Squares on a chessboard worksheet (with QR code)
Squares on a chessboard worksheet (without QR code)
Activity notes for teachers
Tree Diagrams Explained
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. This is an updated, 4K version of our previous video. Practice questions and answers are at the end of the video.
Order of Operations Explained
Order of Operations: What do the acronyms BODMAS, BIDMAS, BEDMAS and PEMDAS/PEDMAS stand for? What does order of operations mean?
This video will explain in which order to calculate math problems and provide worked examples and practice questions. This is an updated,4K version of our previous video.
Simplifying Ratios
Simplifying 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. This is an updated, 4K version of our previous simplifying ratios video.
What Is A Surd
This video explains what a surd is and how to find out if a root is a surd or not a surd. It provides an introduction to understanding surds, which is crucial before studying how to manipulate surds. Practice questions and answers are at the end of the video.
Parts Of A Circle
This video will explain the different parts of a circle such as the arc, segment and chord. Practice questions and answers are at the end of the video. This is an updated, 4K version of our previous video.
Equivalent Fractions
Equivalent Fractions: This video explains finding equivalent fractions and simplifying fractions. Practice questions and answers are provided at the end of the video. This is an updated, 4K version of our previous video
Expanding Brackets (Multiplying Out Brackets)
This video covers expanding brackets (also known as multiplying out brackets) including brackets with powers and negative multipliers. Practice questions and answers are at the end of the video. This is an updated , 4K version of our previous video.
Adding and Subtracting Negative and Positive Numbers
This video explains adding and subtracting negative and positive numbers. We will use a number line to demonstrate as well as real world examples using money. We explain the sign rules for adding and subtracting negative and positive numbers. This is an updated, 4K version of our previous video!
Pythagoras' Theorem Explanation
Pythagoras’ Theorem Explanation: This video is an introduction lesson for Pythagoras’ Theorem. Why is it useful to know Pythagoras’ Theorem? What is a hypotenuse? Watch this video to find out.
Practice questions and answers are at the end of the video. This is an updated, 4K version of our previous video.
Semi Regular Tessellations Explained
This short video explains how to identify semi-regular tessellations and how to describe them. Semi regular tessellations are tiling patterns made up of two or more regular polygons.
Practice questions are at the end of the video.
This is an updated, 4K version of our previous video.
Order Of Rotational Symmetry Of A Circle (Updated)
Order Of Rotational Symmetry Of A Circle: This short video explains why the order of rotational symmetry of a circle is infinite. This is an updated, 4K version of our previous video.
Ratio Sharing
This video explains ratio sharing/ sharing in a given ratio. Two sets of practice questions and answers are provided at the end of the video. This is an updated, 4K version of our previous video
Area Of A Parallelogram
This video will explain how to find the area of a parallelogram, what a parallelogram is and provides a visual demonstration of why the formula for the area of a parallelogram works. Practice questions and answers are at the end of the video. This is an updated, 4K version of our previous video
Plans and Elevations Maths
Plans and Elevations Maths: This video explains how to draw 2D projections of 3D shapes: plans, front elevations and side elevations. Practice questions and answers are at the end of the video. This is an updated version of our previous video!
Angles In Parallel Lines
This video explains angles in parallel lines, the rules for an angle formed by a transversal (line) crossing a pair of parallel lines: corresponding angles, alternate angles, corresponding angles and allied angles. Practice questions and answers are at the end of the video.
How To Find The Volume Of A Frustum (Updated)
This video explains how to find the volume of a frustum and explains what a frustum is. We also explain how to find the radius of the smaller/removed cone. There are two practice questions at the end of the video.
Multiplying Surds: Simplification
Multiplying Surds: Simplification: 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 and answer using the concept of area is at the end of the video.
Angle Rules
Angle Rules: This video explains the basic angle rules which are extremely helpful to know when solving geometry problems. Rules covered are: Angles in a triangle, angles in a quadrilateral, angles on a straight line, angles around a point and vertically opposite angles. There is a GCSE style practice question at the end of the video to test your knowledge.
Inequality Symbols And Meanings
Inequality Symbols And Meanings: This video explains how to read the 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.