In a well-planned lesson, what should each lesson contain?

In a well-planned lesson, it is essential to include new material that relates to previously presented lessons. This approach reinforces the learning process by building on existing knowledge and skills. When new information connects to students' prior learning, it promotes deeper understanding and retention. It allows for the integration of concepts, making it easier for students to see the relevance and application of what they are learning.

Incorporating new material that relates to previous lessons helps in creating a cohesive educational experience. This connection can facilitate discussions, enhance critical thinking, and aid in the synthesis of information across different topics. For students, recognizing the continuity in their learning can boost their confidence and motivation to engage further with the subject matter.

While the other options may have their merits in specific contexts, they do not provide the comprehensive framework necessary for effective lesson planning that builds on students' prior knowledge and skills.