Pornhub logo

This is an adult website

This website contains age-restricted materials including nudity and explicit depictions of sexual activity. By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.

I am under 18 - Exit


Our parental controls page explains how you can easily
block access to this site.



© Pornhub.com, 2024
RTA

You are now leaving Pornhub.com

NO MORE ADS.
JUST ALL THE PREMIUM
PORN YOU CAN HANDLE WELCOME TO
THE BEST PORN
EXPERIENCE. EVER. FINALLY,
THE PORN EXPERIENCE
YOU DESERVE.
No Ads
Exclusive
Content
High Quality
HD
Cancel
Anytime

Offering exclusive content not available on Pornhub.com. Super affordable at only $9.99/month.

Start Free Week of Pornhub Premium
Go Back

You are now leaving Pornhub.com

Free 7 day
premium
access

No Ads + Exclusive Content + HD Videos + Cancel Anytime

Start now

Watch this exclusive
video only on
pornhub premium.

Luckily you can have FREE 7 day access!

Watch this hd video now

You will never
see ads again!

Claim your 7 day free access

Watch this 1080p
video only on
pornhub premium.

Luckily you can have FREE 7 day access!

Watch this hd video now

By upgrading today,
you get one week
free access

No Ads + Exclusive Content + HD Videos + Cancel Anytime

Claim your 7 day free access

Offering exclusive content not available on Pornhub.com

Video poster
Resume

[復甦][真・Pronhub 最大華人微積分教學頻道] 連續篇重點一：連續的概念｜觀念講解｜數學老師張旭

29.9K Views
78%
3 years ago
Add to
Report
Share
171
46
32
Added to your Favorites
Video Liked View liked videos Video Liked! Sign up to store more Liked Videos Sign up
Add to playlist
Add to stream
Login or Sign Up now to add this video!
Login or Sign Up now to add this video to stream!
Close
Jump to your favorite action
Close
avatar
changhsumath
397 Videos 16.2K Subscribers

Categories 

HD Porn Verified Amateurs
Suggest
Vote on categories
  • HD Porn
  • Verified Amateurs
Submit

Pornstars 

Suggest
Thank you for your suggestions! Our team is reviewing them!

Tags 

sfw teaching math chinese class education
Suggest
Vote on tags
  • Sfw
  • Teaching
  • Math
  • Chinese
  • Class
  • Education
Submit

Model Attributes

No Piercing Asian Tattoos Black Hair

Production 

homemade
Suggest
Vote on production
  • Professional
  • Homemade
Added on 3 years ago
View more

All Comments (14)

Login or Sign Up now to post a comment!

Zipperpig
Zipperpig
2 years ago
how the fuck did I get here. and what is going on?
27
• Reply
bartek598
bartek598
2 years ago
Congrats for teaching maths on pornhub. Interesting idea
8
• Reply
Defyler48
Defyler48
2 years ago
Two things that I do not understand, advanced arithmetic and the Chinese language!
3
• Reply
8gjx
8gjx
2 years ago
respect to this man.
2
• Reply
Deadlocker69
Deadlocker69
2 years ago
Don’t mind me I’m just casually studying calculus on pornhub
1
• Reply
zakurimnaudachu
zakurimnaudachu
2 years ago
чё пацаны математику изучаем?
0
• Reply
JSAdan
JSAdan
2 years ago
ik yall dont like self promotion but give me a chance. im almost 10 subs from 100 and if yall can check me out at the minimum and maybe sub then itll make my day! comment "hub" or "ph" or something so ik u came from here! YT adannn
0
• Reply
Cruzga123
Cruzga123
2 years ago
This why i love math. Even though i dont know what he's saying i can get the idea from his limits and set notation
0
• Reply
SirPusstPenetrator
SirPusstPenetrator
2 years ago
how the fuck did i end up here
0
• Reply
Klapka411
Klapka411
2 years ago
i love u
0
• Reply

The World's Biggest XXX Porno Tube

Pornhub provides you with unlimited free porn videos with the hottest adult performers. Enjoy the largest amateur porn community on the net as well as full-length scenes from the top XXX studios. We update our porn videos daily to ensure you always get the best quality sex movies.

© Pornhub.com, 2024
RTA