Beautiful! The way you teach is poetry in motion! Don't ever stop making these videos.

I absolutely love your tutorials thank you so much, they're really helping my trig grade! Thank you!!!!

biology rules

awesome !! im a 4th grader and you help me a LOT !! thanks for being considerate !!!

I from Turkey. I can say that You are a perfect teacher and person to respect more to teach everybody everythink like this.

hi

Bless you 10,000 times. You have helped me immensely with permutations today.

Your videos and commentary are GREAT!!!
How about a few videos for reviewing the actuary tests? I know the statistics, probabilty and calculus and other higher level math videos cover that , but I was wondering if there were videos that are dedicated to that topic with word problem examples, etc.

Thanks again for the incredible videos. These are worth more than gold and diamonds.

hey man! Love your videos. I tutor on a college campus and always use these videos to recap on old material. A lot of my students struggle with Photosynthesis (Light reaction and Dark reaction) as well as RESPIRATION. I suggest making some sweet videos for those, especially respiration. Thanks again. Are you a professor? what do you do for a living?

You are the definition of a one-man-school! You help me with algebra and chemistry as well. You RoCK!