Computers are everywhere. We all need to learn how to use them, and many of us use them every day. But how do they work? How do they think? And how can people write software that is fast and easy to use? Computer science is a fascinating subject that explores these very questions. The easy and fun activities in this book, designed for studentren of all ages, introduce you to some of the building blocks of how computers work - without using a computer at all!
This book can be effectively used in enrichment and extension programmes, or even in the regular classroom. You don't have to be a computer expert to enjoy learning these principles with your students. The book contains a range of activities, with background information explained simply. Answers to all problems are provided, and each activity ends with a 'what's it all about?' section that explains the relevance of the activities.
Many of the activities are mathematically based, e.g. exploring binary numbers, mapping and graphs, patterns and sorting problems, and cryptography. Others link in well with the technology curriculum, and the knowledge and understanding of how computers work. The studentren are actively involved in communication, problem solving, creativity, and thinking skills in a meaningful context. The activities also provide a very engaging way to explore "computational thinking", which is gaining traction in school curricula.
This open book is licensed under a Creative Commons License (CC BY-NC-SA). You can download CS Unplugged ebook for free in PDF format (10.0 MB).
Table of Contents
Data: the raw material - Representing information
Putting Computers to Work - Algorithms
Telling Computers What To Do - Representing Procedures
Really hard problems - Intractability
Sharing secrets and fighting crime-Cryptography
The human face of computing-Interacting with computers