I love math! I started working with some advanced math students last year and we incorporated some Math in Nature as part of our explorations. Below are some links we found helpful.
General Resources
Maths Outdoors – http://creativestarlearning.co.uk/c/maths-outdoors/
Hexaflexagon – https://www.youtube.com/watch?v=VIVIegSt81k
Honeycomb Conjecture
Honeybees Love Hexagons – https://www.youtube.com/watch?v=QEzlsjAqADA
Hexagon Tiling – http://mathworld.wolfram.com/HexagonTiling.html
Tessellation – http://mathworld.wolfram.com/Tessellation.html
Honeycomb Conjecture – https://www.youtube.com/watch?v=7hnbfcWHLYc
The Golden Ratio
Golden Ratio – http://mathworld.wolfram.com/GoldenRatio.html
Golden Rectangles All Around Activity – http://math.rice.edu/~lanius/Geom/around.html
Fibonacci Numbers
Fibonacci Number – http://mathworld.wolfram.com/FibonacciNumber.html
Doodling in Math – https://www.youtube.com/watch?v=ahXIMUkSXX0 Notes and References: https://vimeo.com/147799854
The magic of Fibonacci numbers –https://www.ted.com/talks/arthur_benjamin_the_magic_of_fibonacci_numbers#t-363498
Fractals
General Information and teaching ideas – http://creativestarlearning.co.uk/maths-outdoors/outdoor-maths-fractals-in-nature/
Fractal Foundation – http://fractalfoundation.org/
Nico’s Fractal Machine- Fractal Creator where you can stop and save an image of the fractal you made
https://sciencevsmagic.net/fractal/#0223,0090,1,1,1,0,1
African Fractals – http://www.csdt.rpi.edu/african/African_Fractals/applications4.html
Books
By Nature’s Design https://www.amazon.com/Natures-Design-Exploratorium-Book/dp/0811803295
The Magic of Mathematics
Of Interest
How to Draw with Math https://blogs.scientificamerican.com/guest-blog/how-to-draw-with-math/