I use a variety of different software including photoshop, illustrator, HTML5, Final Cut, GarageBand and a few other products. Each video takes me a long time to create. My rule of thumb is each minute of video takes about 12 hours to create, so a 7 minute video takes me about 84 hours of development time. Besides the technology I use, I have done a tremendous amount of research on how students learn via animations and the impact of color and narration.

The pace and tone is always hard for me. I have a large range of subscribers and... I often imagine the student trying to grasp this concept after a night of drinking and a test in a few hours. So I talk slow, clear and don't make any sudden moves :) I do appreciate the feedback and it is something I struggle with. Make sure you like MyBookSucks on FaceBook (see link in video description).

Been searching 2 days for a way to understand this. Of all the tutorials I've read and watched, this one was the one where it clicked. Thanks! Liked and subbed!

I like your pacing; Especially, I like your attention to the logical order of the steps and how you draw attention analogies between steps elsewhere.

Must have taken a lot of time...thanks for all your efforts.

Thank you so much for what you do. Your helpful tutorials have greatly impacted my life as well as many others. I used to struggle with the simplest of concepts. But not because i couldn't understand the theorems, equations, etc, but because my teacher was not very specific or descriptive, and i was afraid to ask questions. To watch these videos in the comfort of my own home and receive such valuable teachings, is beyond amazing. Thank you.

You are very welcome! Make sure you like MyBookSucks on Facebook. This will help others find the educational videos.

You are very welcome. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

Great to hear! Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

Yes, the pace is always a struggle for me. In my classes when I go to fast students just stare at me like they have drank an iced smoothie too fast and have a brain freeze. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

I watched a lot of videos and tutorial about this topic. It took me hours and finally found this. ohhh thank you so much! the presentation and the technique made it easier to understand. Finally!!!!!

Its very confusing for me in the text books, but thanks to you..Now I very well understand Permutations and Combinations.. Loved your 1st video and this one too..liked and subscribed ! Thank You

since 3 years I have liked to find this video which explains permutations and combinations

The pace is always hard for me since the KZfaq audience is so diverse. Thanks for the feedback.

I like the slow pace of this video! This helped me alot, you're a great teacher ;)

Thank you so much for making this video! I had a class trip today , and we left when I had math. So I missed that day's lesson. This helped me understand my homework and now I can do it. Thank you so much, sir!

Thank you so much for this video, sir. Your way of explaining is Wonderful and easy to understand.

It is probably best that you post your question as a FaceBook message on the MyBookSucks page.. This way you can add attachments and you are not limited on how long your question can be. You can see the link to FaceBook in the video description of this video (and while you are there like the MyBookSucks page.

A learning video can not be more clearer than this one. Thanks.

Great to hear and you are very welcome.

after watching many other videos my concept wasn't clear but this video made me absolutely clear my concept. thanks

exlelent video! the best out there to clearly explain this subject, immediately subscribed

I'm taking the GRE tomorrow morning and I just want to say thank you for posting this!

Well thank you that is much appreciated. Make sure you like MyBookSucks on Facebook. This will help other students find the educational videos.

awesome way of explaining Permutations and combination! thank you so much!

Thank you so much for making this video, it helped me solve a really tough coding problem even without much of a math background! Really appreciate your work :)

71k students strong, keep up the great work professor!

You are very welcome and good luck on your GRE test too.

Your video helped me a lot. Thank you. all your videos are great.

This was the best video ever! Thanks for the help!

This video really helps me. Thank you!!

Thank you for this video. You are a good teacher for me.

Normally i'm too lazy to just sign in and subscribe but your explanation made me subscribe you. Appreciate your work thanks heaps

Good job! Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

WOW!!! so much better than Khan Academy!!! I'm amazed. Thank you sooooooo much!

Great video!!!!!! way better than my professor.

Very clear explanation. I love it so much..

Great explanation,Thank you for your help.

As I said in the last video, this was very helpful, so again, thank you.

great glad i found you on you tube

I get it! Although it is a little slow, it a must so that every student understands it. Good job!

Your videos are too good! do you haveexplanation on binominal distribution of probability.

I would be curious to know what you think of my videos on Chi Square and ANOVA? Good luck on your PhD work.

Great explanation!

This is a life saver. Thanks!

Thank you for these videos!

You are very welcome!

Well thank you and I do appreciate the comparison to Apple.

your videos are the reason im a year ahead in math thank you

Thankyou for your help and effort

Very helpful. Thank you.

amazing explanation.......

you are a good teacher

The best ...i mean THE BEST THING in the whole video is " PARTY MORE STUDY LESS"

Love it. Now if my brain can just retain it for my test. LOL

thank you so so much this video helped me so much

yeah of course i like the way this guy teaches in fact he is better than our teacher congracts

Amei, vi muitos videos mais esse foi 100% maravilhoso,obrigada!

good work!!

This will surely help on my final in about 30 minutes.

That was so clear 👍

very helpful.. thanks a lot..

gr8 explanation! thanx :)

This is a nice video. What about when you can use the same variable multiple times in a combination? What is the formula to calculate the permutations then? Say you have 10 numbers and you have to pick 5, but all 5 could be repeated numbers. (e.x 17098, 55555) NVM, I think it's 10^5.

amazing..! helped a lot..

U r amazing sir .

You saved me thank you!

What do I do if I have 4 sections and 5 objects each but I can only choose one option from each section?

Thank you ! Finals are stressful and its nice to have the internet. xD

You are the best

In the pic-3 Tx Lotto there are 90 groups of 3 digit numbers, each with 2 identical numbers in each group , I know the permutations for this is 270, but I can't seem to get that number using any formula or methed. Please help, thanks.

some 19 6 year olds who decided to spend their life on disliking videos disliked this very good and useful video. please like this vid :)

wonderful! thank you!

like an apple comercial kudos to u!

Awesome! This will help me figure out how many combinations of Villagers you can have in Animal Crossing NH. And, the chance of two people sharing the same combo. Edit: Back! Now here’s how many Villager Combos you have in Animal Crossing NH: 2,390,657,087,557,000,000 HAHAHA!!! Now, that’s a doozy. Welp, it’s safe to say most people will have some pretty unique islands. Even if some choose to curate their favorites. XD

THANK YOU!!!

This helped me pass math.

thanks for the help helped me better than my teacher taugh i actually get it now

thank you so much

veryy big thanx to you

Sorry, I'm not a math guy... Been out of school for almost 30 years. I still don't really understand the difference between permutations and combinations. Can you help with that? Or direct me to resource which explains these things?

Very helpful

which application you were used to make this video...?

thank you sir

Thank you

thank you for this nice video. which software do you use to illustrate? is it powerpoint?

very useful ....thanks :D

thank you

i need help how to calculate big number like % and upon pls help me and i found your video is the best video its reall help me for understanding basic concepts thanks and pls help me out

How about permutations taken from 1 to N. Like Sum of N! / (N - n)!, where n from 1 to N ?

Thanksss!!!

Ok im sure I am messing something up,but I take N!/n!(N-1)! And then I work it out by hand I get two differen numbers. I am trying to find the number of combinations for 10 numbers (0-9) in pairs of two. Using the formula I get 45, but writing out the numbers in pairs of twos with none repeated I get 55? Why?

Thanks

thank u 👏

you are awesome

Bravo

Greate

like they say not all heroes wear capes :')

GUESS WHOS PASSING THE GRAD TEST NOW XD

Silly to use n and N . Use r instead