The Computer Science Field Guide

The Computer Science Field Guide is an online resource for teaching Computer Science to students. It is a New Zealand based project, providing  content in the form of text (both for students and guidance for teachers), images and interactives.  The project was formed because people often confuse computer science with programming. “Computer science is about tools and techniques for designing and building applications that are very fast, have great interfaces, […]

Binary in plain English

You need to teach binary as part of the curriculum, but do really understand it? The binary number system is a base-2 number system. This means, it only has two numbers, 0 and 1. You might be thinking, our decimal number system has numbers 0-9 so why don’t we use this? Well, with electronics and computer systems, they only have two electrical states, on or off. These two states can be represented as zero […]

Unplugged coding: Sandwich algorithm

Unplugged coding lessons, allow you to teach the fundamentals of computer science without a computer. This style of  coding lessons were very popular about 3-4 years ago when the term ‘coding’ became the hot topic in education, and many schools had limited access to devices. However, as schools acquired greater access to devices,  I found that teachers weren’t letting go of the unplugged activities. I recall being on yard duty two […]

Teaching game design using Scratch

I’ve just finished teaching a unit on coding and game design using Scratch. My students are in Year 5, 10-11 years of age and below is a video showing examples of some of the games they coded and designed. Below I have explained how my students achieved this. To begin with, I asked students to download Scratch so that we could work with the off line version. I did this […]