Keep exploring at ► https://brilliant.org/TreforBazett. Get started for free, and hurry—the first 200 people get 20% off an annual premium subscription. Today is MATH CRAFTS day! We're going to make some holiday decorations and then also chat about the cool math behind them. We'll learn about the cool Koch Snowflake fractal (infinite perimeter but finite area!), the dihedral group symmetries of the snowflakes, and finally an origami stellated dodecahedron. 0:00 The Koch Snowflake algorithm 1:16 Crafting a Koch Snowflake 1:59 Mathematical properties of the Koch Snowflake 6:02 Symmetries of Snowflakes 9:18 The Dihedral Group 11:22 Origami Dodecahedron 12:43 Brilliant.org/TreforBazett Instructions for the stellated origami dodecahedron built from Sonobe units: https://www.wikihow.com/Make-a-Modular-Origami-Stellated-Icosahedron?fbclid=IwAR1xPUa0xTT2GIC4YxL4t78MQOksVlb0mhAznRCF0z-0Lak2cgGW35Pg3p8 Check out my MATH MERCH line in collaboration with Beautiful Equations ►https://beautifulequations.net/pages/trefor COURSE PLAYLISTS: ►DISCRETE MATH:    • Discrete Math (Full Course: Sets, Log...   ►LINEAR ALGEBRA:    • Linear Algebra (Full Course)   ►CALCULUS I:    • Calculus I (Limits, Derivative, Integ...   ► CALCULUS II:    • Calculus II (Integration Methods, Ser...   ►MULTIVARIABLE CALCULUS (Calc III):    • Calculus III: Multivariable Calculus ...   ►VECTOR CALCULUS (Calc IV)    • Calculus IV: Vector Calculus (Line In...   ►DIFFERENTIAL EQUATIONS:    • Ordinary Differential Equations (ODEs)   ►LAPLACE TRANSFORM:    • Laplace Transforms and Solving ODEs   ►GAME THEORY:    • Game Theory   OTHER PLAYLISTS: ► Learning Math Series https://www.youtube.com/watch?v=LPH2lqis3D0 ►Cool Math Series:    • Cool Math Series   BECOME A MEMBER: ►Join: null MATH BOOKS I LOVE (affilliate link): ► https://www.amazon.com/shop/treforbazett SOCIALS: ►Twitter (math based): http://twitter.com/treforbazett ►Instagram (photography based): http://instagram.com/treforphotography