Basic Maths Skills VideosGCSE Grade B (NC Level 8) Topics
Topic 1 - Changing Recurring decimals to fractions
This video goes through 4 examples of changing recurring decimals to fractions.
General Tutorial:- maths247 |
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Topic 2 - Repeated Percentage Change
This video explains how to increase and decrease percentages using a multiplier, this allows you to do repeated percentage change very quickly. The practice link is to some standard percentage increase and decrease questions but try to do them with multipliers.
Interactive Practice from CIMT :- Percentage increase/decrease questions Worked exam questions:- RawMaths |
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Topic 3 - Standard Form
This video explains how to change numbers into and out of standard form and how to do calculations with and without a calculator.
Interactive Practice from CIMT :- Standard form practice Worked exam questions:- RawMaths |
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Topic 4 - Factorising quadratic expressions
This video goes through some basic examples of factorising quadratics by looking at the different combinations of signs in the expression.
Interactive Practice from CIMT :- Lots of factorising Just Qu 2 General Tutorial:- maths247 Hegartymaths - harder ones |
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Topic 5 - Expanding two brackets
This video goes through three different methods for expanding double brackets.
Interactive Practice from CIMT :- Questions 5-11 General Tutorial:- maths247 |
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Topic 6 - Changing the subject of a formula
This video goes through four examples of changing the subject of a formula including squares, square roots and a simple verision of factorising.
Worked exam questions:- RawMaths General Tutorial:- maths247 |
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Topic 7 - Evaluate algebraic formulae
This video goes through three examples of putting numbers into formulas (substitution) with and without a calculator. The practice questions below are fairly basic but get harder.
Interactive Practice from CIMT :- Without a Calculator Questions 3-9 Using a Calculator practice |
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Topic 7b - Solving simultaneous equations
This video goes through two examples of solving simultaneous equations using the elimination method, which is the standard one at this level.
Interactive Practice from CIMT :- Questions 7-10 Worked exam questions:- RawMaths General Tutorial:- Hegarty maths247-first 7 mins |
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Topic 8 - Represent Inequalities graphically
This video explains three examples of inequalities drawn on a graph.
Interactive Practice from CIMT :- More general but useful Worked exam questions:- to follow at some point soon :) General Tutorial:- RawMaths |
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Topic 9 - Identifying types of graphs
This video goes through the main types of graph shapes and their associated equations.
MyMaths revision :- Transforming Graphs - Lesson Transforming Graphs - worksheet |
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Topic 10 - Transformations of graphs
This video goes through all the transformations of graphs you only need the ones were you Add/Subtract and Multiply/Divide.
General Tutorial:- maths247 |
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Topic 11 - Similar shapes length, area and volume
In this video Hegarty explains what we mean by the word similar in mathematics, it also goes through how to change from a length to area to volume
scale factor and does a few nice examples. Check out the Maths247 video which is very similar (no pun intended)
Interactive Practice from CIMT :- Similar shapes (lengths) Len,area and vol scale factors Worked exam questions:- RawMaths-1 2 3 4 HegartMaths Maths247-1 2 General Tutorial:- maths247 - Similar Triangles Length,Area,Vol scale factors |
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Topic 12 - Trigonometric ratios in right-angled triangles
This video recaps the method used to find the missing angle in a right angled triangle when you are given two side lengths. There is an example for each
of the three trig ratios sin, cos and tan. It also works through three examples of finding lengths when given an angle and a side on for each of sin, cos and tan.
Interactive Practice from CIMT :- Using trig functions Finding Sides Finding Angles Worked exam questions:- RawMaths(angles)-1 2 3 4 5 RawMaths(sides)-1 2 1 2 3 General Tutorial:- 3D-1 2 3 4 5 Pyramid 1 2 3 |
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Topic 13 - Dimensions of Formulae
This video gives a brief explanation of how to know if a formula is length, area of Volume (Its by MathMathsMathematics). This is not a standard topic at
GCSE Maths any more so I havent got around to sorting out my own video for it yet.
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Topic 14 - Median and IQR from Cumulative Frequency Graphs
This video goes through how to plot and work out medians and IQR from Cumulative frequency grasphs as well as Box Plots (Box plots not tested in this topic though).
Interactive Practice from CIMT :- Cumulative Frequency MyMaths revision :- Cumulative Frequency - Lesson Cumulative Frequency - worksheet |
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Topic 15 - Comparing distributions
This video is the same as the level 7 one not much difference in my opinion.
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Topic 16 - AND & OR rules for Probability
No video as yet but there is a link to the OR rule on Mymaths.
MyMaths revision :- The Or Rule - Lesson The Or Rule - worksheet |
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Topic 17 - Probability - Using Tree diagrams
This video goes through how to use tree diagrams to solve complex probability questions. If you want to use the MyMaths links login seperately first.
Interactive Practice from CIMT :- Probability of 2 Events MyMaths revision :- Tree diagrams - Lesson Tree diagrams - worksheet |