ABSTRACT
Explaining and Exploring Mathematics is designed to help you teach key mathematical concepts in a fun and engaging way by developing the confidence that is vital for teachers. This practical guide focuses on improving students’ mathematical understanding, rather than just training them for exams. Covering many aspects of the secondary mathematics curriculum for ages 11-18, it explains how to build on students’ current knowledge to help them make sense of new concepts and avoid common misconceptions.
Focusing on two main principles to improve students’ understanding: spotting patterns and extending them to something new, and relating the topic being taught to something that the pupils already understand, this book helps you to explore mathematics with your class and establish a successful teacher-student relationship.
Structured into a series of lessons, Explaining and Exploring Mathematics is packed full of practical advice and examples of the best way to answer frequently asked questions such as:
- Do two minuses really make a plus?
- Why doesn’t 3a + 4b equal 7ab?
- How do you get the area of a circle?
- Why do the angles of a triangle add up to 180°?
- How can you integrate 1/x and calculate the value of e?
This book will be essential reading for all trainee and practising teachers who want to make mathematics relevant and engaging for their students.
TABLE OF CONTENTS
chapter 101|2 pages
Introduction
part |62 pages
11–14 years old
chapter 1|2 pages
Decimals and multiplication by 10, etc.
chapter 2|3 pages
Multiplying and dividing by decimals
chapter 3|4 pages
Adding fractions
chapter 4|6 pages
Multiplying and dividing by fractions; and by 0
chapter 6|7 pages
Use hundreds and thousands, not apples and bananas!
chapter 7|4 pages
Angles and polygons
chapter 8|4 pages
Special quadrilaterals
chapter 9|4 pages
Basic areas
chapter 10|3 pages
Circles and π
chapter 11|4 pages
Starting trigonometry
chapter 12|3 pages
Square of a sum and sum of squares, leading to Pythagoras’ theorem
chapter 13|3 pages
The difference of two squares
chapter 14|2 pages
Another look at (a − b)(a + b)
part |78 pages
14–16 years old
chapter 16|3 pages
The difference of two squares revisited
chapter 18|3 pages
Negative and fractional indices
chapter 19|5 pages
A way to calculate π
chapter 20|4 pages
Pyramids and cones
chapter 21|4 pages
Volume and area of a sphere
chapter 22|5 pages
Straight line graphs and gradients
chapter 23|3 pages
Percentage changes
chapter 24|6 pages
Combining small percentage changes
chapter 25|4 pages
Angle properties of circles
chapter 26|5 pages
Trigonometry with general triangles
chapter 27|10 pages
Irrational numbers
chapter 28|4 pages
Minimising via reflection
chapter 29|4 pages
Maximum area with given perimeter
chapter 31|5 pages
Touching circles and Farey sequences again
part |73 pages
16–18 years old