Use active learning strategies that allow learners to summerize what they learn and to develop critical thinking skills. For example,learners can be asked to generate a concept map to sommerize what they learned. A concept map or a network diagram can show the important concepts in a lesson and the relationship between them. Learner -generated concept maps allow learners to process information at a high level. High -level concept maps can represent information spatially, so learners can see the main ideas and their relationship.