The document discusses the concrete-abstract continuum in learning. It defines concrete as dealing with direct experiences and abstract as looking for patterns. It states that instructional media incorporating concrete experiences can help students learn abstract concepts. Dale Edgar's Cone of Experience is presented, showing that learning is most effective when it moves from real experiences to symbolic representations. Bruner's stages of learning - enactive, iconic, symbolic - are also discussed, showing the progression from real actions to visual representations to symbols.