Flowchart symbols for GCSE Computer Science

Flowcharts for GCSE Computer Science

Representing algorithms for GCSE Computer Science There are several ways to represent algorithms for GCSE Computer Science: Structured English Flowchart Pseudocode Program statements in a particular language In this article we are...

The 15 Puzzle with Python Turtle Graphics

Around 40 years ago there was a craze which took off around the world. It was a 3-dimensional puzzle called the Rubik’s Cube which kept people in a state of semi-trance while...

The 21 Game with Python Turtle Graphics

Here’s something fun. The 21 Game is a two-player counting game where each player can add 1, 2, or 3, starting at zero, to the total. the total must not exceed 21...

Recursion for A Level Computer Science using Python

Introduction to Recursion in Python

It was a dark night, the night was dark and the robbers were in a cave. One robber said to the other “tell us a tale,” and this is the tale he...

insertion sort gcse a-level computer science

Insertion Sort for Computer Science GCSE and A Level

Insertion sort is one of the standard algorithms you will come across studying Computer Science for GCSE and A Level. There are many different versions of the code for it scattered across...

Chessboard puzzle for mathematical reasoning. Devon Maths Tuition

Broken Chessboard Puzzle

Download this image of a modified chessboard, and open it with MS Paint or something similar. Imagine you are trying to cover the whole (modified) board with tiles each two squares long...

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