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The Scratch patch - make a Simon game

This game-writing activity using Scratch will bring back youthful memories for some! It provides easy-to-follow instructions on how to recreate the memory game Simon on-screen. It includes reusable game elements such as score keeping and audio generation.

The Scratch patch - bubble sort algorithm

This short practical guide shows how to implement a bubble sort algorithm in Scratch. The procedure is easy to follow, and can be used in conjunction with theory or unplugged activities to aid understanding.

The Scratch patch - the Julia set

This visual mathematics project focuses on the beautiful images known as Julia Sets (named after French mathematician Gaston Julia). Students use a repeated iterations to explore the world of complex numbers, writing and amending a relatively complicated Scratch program. 

The Scratch patch - king of the heap (sort)

Suitable for students throughout secondary computing, including those studying at an advanced level, this exercise introduces the Heap Sort and explores why it is more efficient than the Bubble Sort in another Scratch Patch article. Students learn about tree data structures, including the correct terminology for...

The Scratch patch - crash, bang, wallop! Create a simple racing car game

This simple game is an engaging way to extend learning in Scratch. It uses fairly simple scripts running in parallel to detect collisions and move sprites, which have been designed in the Scratch environment. It could be used a basis for other similar ‘scrolling’ games. 

The Scratch patch - physics of a cannon ball

Combining some fundamental physics with trigonometry and computer programming, this guide helps students to create a simulation of the projectile motion of a cannon ball. The concepts are all briefly explained, and the program introduces some clever mathematics as well as game elements, such as collision detection...

space:uk - November 2015, Special Edition

This special edition of space:uk, from the UK Space Agency, focusses on the mission of European Space Agency astronaut, Tim Peake, and the educational activities linked to his stay on board the International Space Station. Articles in this edition include: *Principia Mission – From launch to landing, what does Tim...

Gene technologies article

This resource looks at the development of genetic modification, genome editing and CRISPR, and where these technologies might lead. 

New genetic engineering technologies offer exciting opportunities to speed up the traditional plant breeding process and generate high-yielding, disease-resistant, climate...

From Pollutants in Whale Blubber to CSI Chemists

This Catalyst article investigates pollutants in the Arctic. Scientists are monitoring the accumulation of synthetic chemicals which are polluting the Arctic environment.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

...

Conservation Biologist

In this Catalyst article, David Edwards studies ways of reducing the impact of human activities in tropical regions. The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

Catalyst is a science magazine for students aged...

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