The document discusses two models for effective science learning: the 3-element learning cycle from 1962 and the 5E learning model from 1987. The 3-element cycle includes exploration, concept introduction, and concept application. The 5E model promotes active learning through 5 phases - engage, explore, explain, elaborate, and evaluate. It is most effective for new concepts over 2-3 weeks, allowing a complete learning cycle for each phase.