The answer to this question is that before teaching a lesson on any topic, it is important to ensure that students have the prerequisite knowledge and skills in order to retain the content. This could include providing background information on relevant topics, such as the history of the subject or discussing any key concepts related to it. Additionally, students should also be taught certain skills which may be necessary for understanding and applying what they learn in class. Examples of these skills could include critical thinking, problem-solving, communication, collaboration and research methods.

In terms of knowledge related to the lesson itself, teachers should provide an overview of its main points as well as any related vocabulary which might appear throughout it (Frost et al., 2017). For example if discussing a novel then introducing some context about its author or genre beforehand can help put everything into perspective for students since having this type of background information makes it easier for them to recall details from what was said during class. Doing so also allows them to make connections between different aspects which can further contribute towards their comprehension.