K: Simple up/down waves, gentle "mushroom" formation, 2-3 balls maximum, focus on holding edge and cooperation
1st: Add counting games (1-10), simple ball popping, basic directional movement (left, right), color identification activities
2nd: Math integration (skip counting by 2s, 5s), more balls, team challenges (keep balls up for 30 seconds), strategic positioning
3rd: Advanced parachute games (cat and mouse underneath), leadership roles in game management, math problems while moving, coordination challenges
4th: Complex multi-ball games, student-led instruction and rule modification, advanced team strategies, integration with other subjects (geography - move like different continents)