Well, I found this show a little challenging. Firstly, I needed to read up on all of the content, and secondly, I had to try to understand how best to teach it. Thabiso joined us in studio and he spent a lot of time talking about how to transmit the same picture the teacher had in their heads, to the learners. He kept saying how important it was to use different teaching strategies, like experiments, demonstrations, | |

illustrations, observations, etc. He noted that some teachers like to talk throughout a lesson, and not provide places for learners to write anything down.

Whilst I agree with a lot of what Thabiso said, I’m not sure if he gave enough practical ways to implement these teaching techniques within this section. I did a quick Google search on ‘how to teach Geometric Optics’ and found this article on teaching it in large classrooms with experiments. They have practical ways to manage the class and which experiments will work in these situations. I also found an Australian presentation with animations which would be good to show at the end of the section.

But back to what Thabiso said. He recommended that each type of activity should be done for a maximum of 10 minutes to keep the attention of the class. For example, do an experiment for 10 minutes, then write notes on it for 10 minutes, then talk about it for 10 minutes. I’m sure you get the idea.

Let's look at some of the information on the slides.

http://phet.colorado.edu/en/simulation/geometric-optics

http://science.howstuffworks.com/optics-channel.htm

http://www.physicsclassroom.com/class

https://www.youtube.com/watch?v=DUGCDXGWN4g&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=mRZQAR247dY&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=X-sTSkNzGVk&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=FahppoRvRDc&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

Well, that brings us to the end of this post. I’m looking forward to the next show on 24 April where John will be coming in to talk about rate of chemical change. Remember that you can join the conversation at #vtscience.

Until then, happy teaching!

But back to what Thabiso said. He recommended that each type of activity should be done for a maximum of 10 minutes to keep the attention of the class. For example, do an experiment for 10 minutes, then write notes on it for 10 minutes, then talk about it for 10 minutes. I’m sure you get the idea.

Let's look at some of the information on the slides.

__Thabiso’s 3 Pressure Points:__- The understanding of relevant terminology
- The ability to state the relevant laws and principles (Snell’s law and Huygens principles)
- The ability to apply the mathematical skills, especially in calculations (Refractive index, Degree of diffraction and applying the Snell’s law to solve problems).

__Thabiso’s 5 Point Teaching Strategy:__- Identify the preknowledge and resolve misconception through the diagnostic assessment.
- Revise the relevant terminology (transverse and longitudinal waves, reflection, refraction etc.)
- Revise the the geometric concepts with relevant examples (angle of incidence, angle of refraction, image formation and size etc.)
- Introduce and explain the Snell’s law and Huygens principles together with the relevant formulae.
- Assess the learners continuously and provide remediation.

__Links to help with the section:__http://phet.colorado.edu/en/simulation/geometric-optics

http://science.howstuffworks.com/optics-channel.htm

http://www.physicsclassroom.com/class

__Mindset Resources:__https://www.youtube.com/watch?v=DUGCDXGWN4g&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=mRZQAR247dY&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=X-sTSkNzGVk&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

https://www.youtube.com/watch?v=FahppoRvRDc&list=PLOaNAKtW5HLQgpwlNn6mM7x8SRpSoV9MH

Well, that brings us to the end of this post. I’m looking forward to the next show on 24 April where John will be coming in to talk about rate of chemical change. Remember that you can join the conversation at #vtscience.

Until then, happy teaching!