Unplugged Activity Book level 3 this activity book is packed with fun activities to help you understand computational thinking and problem solving techniques. Things you'll need: Colouring pencils, pens or crayons.The sticker pack provided with your booklet. Topic 1 - 2D Lists Topic 2 - Concurrency Topic 3 - Bubble Sorting Topic 4 - Functions Topic 5 - Conditional Topic 6 - Balance Problems Topic 7 - Loops III Topic 8 - LIFO world Topic 9 - Binary