Predict-Observe-Explain helps students to articulate what they think will happen in a scenario based on their existing ideas/theories. By recording this prediction, it helps student to compare it to their later observations.
Student then observe the scenario and describe what they see, and later try to explain what they have observed, and how it relates to their initial prediction. If their prediction was wrong, they are encouraged to explore why it was wrong.
Predict-Observe-Explain is particularly useful in science teaching and other contexts that allow for hypothesis formulation and testing by students. It can be valuable in developing metacognitive skills as students reflect on why they make incorrect predictions.