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Modems unplugged - sound representation

All data on computers is stored and transmitted using the binary number system. When the binary digits need to be sent over the phone lines (which often happens in home internet connections), the digits are converted to sound and decoded at the other end using a modem. This activity uses audio coding similar...

Itching for more

Designed for students who have advanced through Scratch and are ready for additional challenge, this resource explores Build Your Own Blocks (BYOB) as a tool for learning modular programming using procedures. 

After examining, briefly, the history of the computer and the Turing Test as a measure of their...

Starting from Scratch

Scratch is widely used in primary schools to teach children basic programming. This resource goes deeper, making use of the familiar Scratch environment to take students deeper into programming concepts such as:

  • Algorithm design
  • Parallel and sequential instructions
  • Event-driven...

I love my smartphone

Mobile app development is an engaging way for students to learn programming and interface design as many do, indeed, "love their smartphone".

This complete learning package teachers the origins and development of the smartphone, helping them to appreciate the amount of technology packed into their pocket. It...

Crazy Character Algorithms Activity: an Introduction to Sequences of Instructions

Children in lower primary settings can create their first algorithm using this Barefoot Computing unplugged computing activity. A picture of a 'crazy character' is decomposed into simple shapes. The instructions for drawing it are shared with the class who follow and attempt to reconstruct the picture. This...

Introduction to sound and music computing

A highly technical overview of how sound is represented in a computer, how digitising sound changes the quality of it and how reducing the sample rates can effect the resulting audio. The resource also comes with a number of sound samples to illustrate these concepts, along with both Python and Scratch programs to...

Let's Doodle

This workshop or lesson activity makes use of a 3-D printing pen, and covers many computational thinking concepts as well as practical and evaluative skills applicable to design and technology.

The teacher guide includes a range of ‘unplugged’ computing activities – no programming is involved. The...

Crazy Graphics

This workshop investigates how images are stored as data, and shows the difference that ‘bit depth’ makes to the quality of images and number of colours.

It begins by looking at paintings and how, using only paint, images were difficult to edit – however digital images are much easier. Pupils with access to...

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