Make science exciting, hands-on, and meaningful with this IB PYP Grade 1 – How the World Works Unit 5 Teacher Manual + Printable Pack! This complete 6-week inquiry unit helps young learners explore how things move and change through forces, energy, and materials. Students investigate pushes and pulls, light and sound, and properties of materials through playful experiments, movement, sorting, building, and simple engineering challenges. Designed specifically for Grade 1 attention spans, lessons