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Introduce the learning objectives to the students and emphasize the importance of understanding the movement of molecules in biological systems.

What do you already know about the movement of molecules?

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Provide a simple definition of diffusion and explain how it occurs in biological systems.

Introduce the concept of osmosis and how it differs from diffusion.

Explain what happens to cells in hypertonic solutions and provide examples.

Explain what happens to cells in hypotonic solutions and provide examples.

Explain what happens to cells in isotonic solutions and provide examples.

Introduce the concept of facilitated diffusion and provide examples of transport proteins.

Explain the role of channel proteins in facilitated diffusion.

Explain the role of carrier proteins in facilitated diffusion.

Introduce the concept of active transport and provide examples of transport proteins involved in active transport.

Introduce the concepts of endocytosis and exocytosis and provide examples of when these processes occur.

Review the main concepts covered in the lesson and provide opportunities for students to ask questions and clarify any misunderstandings.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.