A common struggle, also shared by many teachers, is that they find it difficult to go beyond teaching content and skills. Concept-based learning aims for students to use core content and skills as tools - as opposed to content and skills being the final destination of learning - to reach higher levels of thinking and deeper understanding. One common reason is that teachers feel they need to ‘cover’ the curriculum. Another common reason is that teachers can feel unsure of the steps they can take to scaffold learning so that students build their own conceptual understandings.