A lesson or a homework activity on algorithm design, with AFL, printer-ready (A4), with solutions
Overview of Flowgorithm - a great free program for teaching pseudocode and flowcharts. Will also mention that it can run on MacOS with Wine.
Slides to support delivery of iteration (FOR, While, Repeat until), lists/arrays up to 2d, use of flowcharts and pseudocode, includes practical tasks
Flowgorithm does all the hard work for you (almost!).