Effect of retrieval practice and drawing on high school students’ conceptual understanding of the carbon cycle

Both learner-generated drawing and retrieval practice methods are effective to enhance science learning. To compare the impact of combining different drawing methods (representational drawing vs. abstract drawing) with retrieval practice on the carbon cycle learning, 136 Chinese high school students enrolled in a geography course were assigned randomly to six learning conditions: students built their mental models of the carbon cycle by either generating sketches with or without access to the text learning material introducing the carbon cycle (i.e., generative sketching vs. retrieval sketching), or by creating concept maps with or without access to the learning material (i.e., generative concept mapping vs. retrieval concept mapping), or students just freely recalled on what they have learned from the learning material by paragraphing (i.e., retrieval practice), or restudied the learning material with note-taking (i.e., restudy). Students’ learning outcomes were assessed by immediate and one-week delayed tests. Results revealed that no difference was found between the six conditions on the immediate test, whereas students in the retrieval practice condition with paragraphing significantly outperformed those who did not practice retrieval on the one-week delayed test. However, there was no difference between the two drawing conditions regardless of whether they were adopted with or without retrieval practice. Furthermore, the same pattern was found on the factual knowledge questions in both tests, but no main effect of condition was found on both the immediate and the delayed tests for the application questions. We conclude that retrieval-based drawing could be adopted for climate change education at the high school level.