Classroom Pack: Claim Lab Activities This classroom pack is designed for teachers, parents, clubs, and curious groups who want to discuss flat-earth claims without turning the room into a shouting match. Activity 1: Meme to Measurement Pick one flat-earth meme or short post. Rewrite it as a testable claim. List what information is missing. Make one globe prediction and one flat-earth prediction. Decide what observation would distinguish them. Activity 2: Model Scorecard Debate Assign one group to defend a globe prediction and another to define the flat-earth prediction. The key rule: no group may rely on insults or institutional trust. Both must make predictions. Activity 3: Route Reality Check Use the flat-map distance checker to compare southern hemisphere routes. Ask students what would happen to airlines, shipping, and emergency planning if the flat-map distances were physically true. Activity 4: Local Sun Challenge Choose two cities on the same date. Compare sunrise, sunset, solar noon altitude, and daylight duration. Ask whether one local-Sun diagram can predict both locations at once. Discussion Norm Be kind to people. Be ruthless with predictions.