Puzzles
Probably computational thinking sort of stuff. Year 9 for now, but this might end up someplace else.
1 – Number guess
Binary search first – getting practical before coming back to the theory bit.
Intro slides – web version without second part
Intro slides – full version for teacher to use
Scratch program sheet 1 – basic version
Scratch program sheet 2 – adds guesses in
There's a set of instructions to turn this into a program.
2 – Search algorithms
Come back to binary search and then head into linear search with a program to have the computer guess your number.
Intro slides – calling back to first lesson
Linear search intro and algorithm
Linear search program in Scratch
There's a set of instructions to code some linear search algorithms.
Linear search program instructions
Binary search bot program – not the best program in the world, but it seems to work
Program which allows user to specify the range of values to guess from
3 – Highest Common Factor
Euclid's algorithm.
Highest Common Factor program instructions
4 – Code breaking
Codes
In Excel first.
Excel slides – a screenshot basically
Some Python files:
There's an ASCII code table handy.
ASCII code program instructions
Plaintext and Ciphertext arrays
Create a random alphabetical cipher
5 – Dice thrower
Dice, probability and Monopoly.