An AI lesson planner for teachers: lesson plans, slides and worksheets from one topic, with sources you can check. Tell Lesson Dino your subject, year group and topic. It looks the topic up first (Wikipedia and well-known learning sites for children and teenagers), then produces lesson ideas, a lesson plan, YouTube video clips, slides and a printable worksheet that all match. Every fact is numbered with its source so teachers can check it in seconds. Pricing: Free (beta).