Turn your pupils into number detectives! This visual, interactive PowerPoint lesson gives Year 1 children a full hour of hands-on practice comparing and ordering numbers to 20. The lesson unpicks the tricky teen numbers (“every teen has a ten hiding inside!”), teaches more, fewer and equal with colourful worked examples, and builds up to ordering muddled numbers from smallest to biggest. Children hunt down missing numbers on the number line and master one more/one less with quick-fire jumps. Two built-in activities get everyone doing: a practical number washing line for physical ordering practice, and a Number Champion challenge game to finish with. Every slide is bright and engaging, with picture icons, big friendly worked examples and an encouraging cartoon teacher cheering children on. Written directly to the child in simple, warm language, it is equally at home on the classroom whiteboard or at the kitchen table. Completely ready to teach — open it up and the hour plans itself!