Chromatography - a Student-Centered Lesson - GCSE Chemistry

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 1. Introduction
The teacher introduces the new topic with intrigue, tells that chromatography is used in pharmacy and industry, and that the previous exams had many questions on this topic. 
The students write down in their notebooks the topic and sketch the lesson summary diagram.
The teacher introduces the two objectives of the lesson.

2. Sticky notes - brainstorming - Aha Slides
The students show their previous knowledge and creativity. Each student contributes 3 words to the word cloud.

3. Virtual experiment - can be done in the lab also
The students do the experiment first and then interpret the results, before learning the theory. This constructivist approach allows the student to think for themselves. 
- Recap about why plants are green
- See the experiment video for 30 second
- Try it yourself
This experiment uses the I do - We do - You do approach.

4. Sample exam question
The students together solve two questions about chromatography from the previous GCSE exams.

5. Group discussion
- Teacher's intro
- Discussion questions overview
- Watch the video
- Discuss in groups
This activity involves critical thinking, collaboration with the colleagues, and communication of their own ideas. The topic of the video is about the quality control in perfumes. This can be linked to the local culture and everyday life.

6. Calculations
The students calculate the Rf - the retention factor
This is an interdisciplinary activity, linked with Mathematics.
The sample problems are based on the previous experiments. They are done in three steps: I do - we do - you do.

7. The key words recap

8. Lesson summary
Self-evaluation

9. Kahoot competition
Who will win the star? This activity uses the behaviorist approach.

10. Homework - a GCSE review video
Recap the same things we did in class, but in other words, all in one video.

Download the lesson for free as a PowerPoint presentation:
https://docs.google.com/presentation/d/1A7t6uFX8prYCHozyzmmU5C1tMHORfnU8/edit?usp=sharing&ouid=105880275394476122937&rtpof=true&sd=true





Download the lesson for free as a PowerPoint presentation:

https://docs.google.com/presentation/d/1A7t6uFX8prYCHozyzmmU5C1tMHORfnU8/edit?usp=sharing&ouid=105880275394476122937&rtpof=true&sd=true

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