1. Sound Braid

  2. How to Draw a Perfect Circle

  3. 5 Reasons We Like 5 Reasons Videos

  4. Reel

  5. Singing Pi-Gram

  6. Folding Space-Time

  7. Vi Hart's Guide to Comments

  8. Sphereflakes

  9. Snowflakes, Starflakes, and Swirlflakes

  10. Thanksgiving Turduckenen-duckenen

  11. Borromean Onion Rings

  12. Green Bean Matherole

  13. Optimal Potatoes

  14. Scary Sierpinski Skull Time

  15. Flex Mex

  16. Hexaflexagon Safety Guide

  17. Hexaflexagons 2

  18. Hexaflexagons

  19. Doodling in Math Class: Connecting Dots

  20. Dialogue for 2

  21. They Became What They Beheld: Medium, Message, Youtubery

  22. How To Make A Video About How To Make A Video About How To Make A Video About How To Make a Video...

  23. Sonnet on a Higgs-Like Particle

  24. A Song About A Circle Constant

  25. What was up with Pythagoras?

  26. Doodle Music

  27. Rhapsody on the Proof of Pi = 4

  28. Why Every Proof that .999... = 1 is Wrong

  29. 9.999... reasons that .999... = 1

  30. Two Non-Repeating Non-Normal Numbers (re: Pi and Shakespeare)

  31. Are Shakespeare's Plays Encoded within Pi?

  32. Fractal Fractions

  33. Wau: The Most Amazing, Ancient, and Singular Number

  34. Math Improv: Fruit by the Foot

  35. Angle-a-trons

  36. Open Letter to Nickelodeon, Re: SpongeBob's Pineapple under the Sea

  37. Doodling in Math: Spirals, Fibonacci, and Being a Plant [Part 3 of 3]

  38. Doodling in Math Class: Spirals, Fibonacci, and Being a Plant [2 of 3]

  39. Announcement: Vi Hart and Khan Academy Join Forces!

  40. Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]

  41. Doodling in Math Class: Triangle Party

  42. Low-Frequency Blues

  43. What is up with Noises? (The Science and Mathematics of Sound, Frequency, and Pitch)

  44. Doodling in Math Class: Squiggle Inception

  45. Origami Proof of the Pythagorean Theorem

  46. Stop-Motion Sillyband Fight

  47. Re: Visual Multiplication and 48/2(9+3)

  48. Binary Hand Dance

  49. Oh No, Pi Politics Again

  50. Pi Is (still) Wrong.

  51. How To Snakes

  52. Hourglass Racing

  53. Wind and Mr. Ug

  54. Snow Day: You're a Linkage!

  55. Hyperbolic Planes Take Off!

  56. The Gauss Christmath Special

  57. Doodling in Math: Sick Number Games

  58. How to eat Candy Buttons like a Recreational Mathemusician

  59. Doodling in Math Class: Infinity Elephants

  60. Doodling in Math Class: Snakes + Graphs

  61. Doodling in Math Class: Stars

  62. Doodling in Math Class: Binary Trees

  63. Burning Paper Instruments - Last Quintet

  64. Harry Potter Septet: Filth, Mudbloods, Scum!

  65. Pachelbel's Music Box Canon in D

  66. Möbius Music Box

  67. Harry Potter Septet: His Eyes are as Green as a Fresh Pickled Toad

  68. The Sound of Paper: Paper Didgeriduel

  69. The Sound of Paper: Paper Storm

  70. Burning Paper Instruments: Autorequiem for Tube Harp