Number Treasury 3
Investigations, Facts and Conjectures About More than 100 Number Families
Written as a resource for both teachers and students, this enlarged third edition of Number Treasury is designed to guide readers through the steps that will help them to think critically, to provide explanations and to formulate conjectures about different families of positive integers. Its 137 exercises and 28 'investigations', at three levels of difficulty, cover such intriguing topics as magic squares, palindromic numbers and twin primes. Detailed solutions are provided at the back of the book.
The Origin of (Almost) Everything
In six parts, on the universe, Earth, life, civilization, knowledge and inventions, this book is a compilation of modern origin stories, giving science’s answers and explanations to questions such as "What is matter made of?" "How did eyes evolve?" and "Why do we need so much stuff?" The book is an engaging introduction to a vast range of topics – from the QWERTY keyboard to black holes – introduced by Stephen Hawking and his big question: ‘Existence: Where did we come from?’
Help Your Kids with Maths
A Unique Step-by-Step Visual Guide
From basic arithmetic to geometry, algebra and statistics, this volume presents maths in an easily accessible way. For multiplication, for example, numbers in a calculation are expressed visually, and a chart shows patterns of multiplication, making tables easier to understand and remember.