All about sets--what they are and how we use them. Discusses subsets, universal sets, intersection of sets and many other topics. Contains exercises and provides answers to them.
Uses games, jokes, and puzzles to introduce logic, including how to reason, make a valid argument, draw a conclusion from what is known, and guess at the reasons for a known conclusion.
An introduction to the science of numbers and space, discussing basic concepts, and including an introduction to computer programming, mathematical games, and activities.
