1)

b. Rhapsody on the Proof of Pi = 4:  https://www.youtube.com/watch?v=D2xYjiL8yyE

proves that pi= 4.

b. Dialogue for 2:  https://www.youtube.com/watch?v=dBVoIUASFS0

This video showed that there are lots of number you can add and the result will be 2. You can say 1+2=2,  ½+½+½+½=2 etc. Also 2 is so friendly and easy number.

c. How I Feel About Logarithms:  https://www.youtube.com/watch?v=N-7tcTIrersThis video

This video shows different way to add, devices and multiply numbers. Which is easier to understand and logical.

2)

When I watches the first video, I was lost. I did not understand the proof even though she drow nice. I felt like she was rushing while she was explaining. If she would have take more time to explain the problem then I would understand it. I learned that the students’ understanding is based on the way a teacher teach. My question is, why does a pi relates with a circle?

3)

From my knowledge, this video did not shows a good method of teaching. As I said in last paragraph, it was fast and not clear which makes me confused to understand how does pi=4. It was a poor math teaching video. From this video we can see that if a teacher take time, ask question and explain clearly then the students will more like to understand the concepts.