to possibly work in some other time:
Showed the first of many worksheets available at http://tube.geogebra.org/student/b138355 for use in math contest preparation.
Project-Fractal Cuts, some Vi Hart videos: http://www.youtube.com/user/Vihart
Comp Lab-Fractals
https://www.youtube.com/playlist?list=PLA34565411F0821C0 (watched #7, but there are lots more videos there).
http://www.dangries.com/Flash/Fractal MakerExp/FractalMaker_exp.html ,
http://math.bu.edu/DYSYS/applets/chaos-game.html
Project Mobius Strip (http://www.youtube.com/playlist?list=PLEC77462F1ECB5D3E )
Proofs: http://mathoverflow.net/questions/ 8846/proofs-without-words
http://www.artofproblemsolving.com/Wiki/ index.php/Proofs_without_words
Xactika
Mistake Proofs
Music a different way: https://www.youtube.com/watch?t=59&v=Y5seI0eJZCg and https://www.youtube.com/watch?v=PoVTcr3RDEU
2048: http://gabrielecirulli.github.io/2048/
2048-Fibonnaci Version: http://www.crazygames.com/game/2584-fibonacci
Also Erik DeMaine video on origami: https://www.youtube.com/watch?v=PHXrRgmgMWg
Vi Hart Videos on Origami, and Counting.
a little discussion of the Pythagorean Theorem (http://www.mathsisfun.com/geometry/pythagorean-theorem-proof.html) and curve stitching (http://www.ams.org/samplings/curve-stitching and
http://britton.disted.camosun.bc.ca/string_art/jbstringart.html) and connections.
How to Avoid Mistakes Discussion (and other ways to improve contest performance). Consequences: http://www.mathaware.org/mam/2014/ (watched braids from day 2 of the month).
Problems on infinity (starting with various problems fromhttps://www.khanacademy.org/math/algebra-home/precalculus/seq-induction and moving to some videos on infinity. Hilbert's Infinite Hotel: https://www.youtube.com/watch?v=Uj3_KqkI9Zo
Vi Hart video on .9999 https://www.youtube.com/watch?v=TINfzxSnnIE and her April Fool's video on .999
Zeno's Dichotomy Paradox: https://www.youtube.com/watch?v=EfqVnj-sgcc, Five Really Big Numbers: https://www.youtube.com/watch?v=TykhPbzmyek, not enough time to watch a whole series of videos on Ridiculously Huge Numbers: https://www.youtube.com/playlist?list=PL3A50BB9C34AB36B3)
Maybe continued fractions: https://www.youtube.com/watch?time_continue=6&v=QAMXSU40ZgA
https://www.youtube.com/watch?v=m4CjXk_b8zo
Curriculum Inspirations: http:/maa.org/ci many videos over AMC contest problems organized by problem solving strategy or by NCTM Content Standard
Twin Prime Conjecture: https://www.youtube.com/watch?v=6yrEA5hs-hk