Part 1 : Doodling in Math Class: DRAGONS In the video, she talks about the lines repetition of zig zags and can for different structures and if in 90 degrees can outline the folds of a piece of paper folded in half multiple times.

Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3] In this video, Vi Hart talks about spirals in nature and how they are related to the Fibonacci series. Her conjecture is that the number of spirals on plants are elements of the Fibonacci series.

What was up with Pythagoras? In this video, Vi Hart talks about how Pythagoras came up with the Pythagorean Theorem and was contradicted by a man who stated his thought off all numbers being rational was false and applied it with his discovery of the Pythagorean theorem.

Part 2: I felt really excited throughout watching several of these videos although Vi Hart does talk pretty fast and was pretty intrigued by the video of “What was up with Pythagoras?”. I was a little confused by the part where they started saying that everything was even but was odd and watched it again and realized that they were contradicting their statements. One of the things I learned from the video was that Pythagoras disliked beans with a passion and found this a little funny and silly. I really liked how she incorporated drawings and examples to show the ideas and concepts. I found her drawings cute and adorable and really help the audience visualize the idea. One of the questions that I have after watching the video would be if Pythagoras was in denial about the existence of irrational numbers, are there concepts today that people don’t set out into the public because they have the same problem as Pythagoras. There are probably many concepts we still don’t fully understand but we should always be open to new ideas.

Part 3: This video shows the origin of the Pythagorean theorem and shows how it was derived. The Pythagorean theorem is most definitely math and students should be shown how the Pythagorean theorem was conjured instead of just given the formula. As Vi Hart said, there were no formulas or variables back then and yet they were able to make this marvelous concept from connecting different concepts. This video is related to the reading from Lockhart’s Lament. It shows the concepts of origination and how they came to be from basic concepts. There were parts in the video were I paused it and was able to see how she worked out a proof by contradiction on how the square root of 2 is not rational. It is always nice to glimpse at something and realize you understand what they are doing. I really enjoyed watching these videos.

Hi Irania, I liked this video you picked ” what s up with the Pythagoras” I was going to choose it but I though it will not bring anything new. Surprisingly when I watch it here in your blog I was fascinated about the origin of Pythagorean theorem and how Vi hart proved it using squares and triangles. and I agree with you it is nice to understand what she was doing I noticed that too when she proved that the square root of 2 is not rational, also you right that proof bye contradiction was quick I had to repeat the video twice.

I also appreciate the silliness involved – both Vi Hart’s silly drawings, and the awesome facts (like “Pythagorus hated beans”). For me, silliness is a way to connect serious ideas to a different part of your brain, and I find those connections often help me remember things, and sometimes provide cool insights that I hadn’t considered before. I’m a fan of silliness!

-Prof. Reitz