A PHP Error was encountered

Severity: Warning

Message: json_decode() expects parameter 1 to be string, array given

Filename: helpers/youtube_helper.php

Line Number: 827

A PHP Error was encountered

Severity: Warning

Message: array_merge(): Argument #2 is not an array

Filename: helpers/youtube_helper.php

Line Number: 828

A PHP Error was encountered

Severity: Warning

Message: array_slice() expects parameter 1 to be array, null given

Filename: helpers/youtube_helper.php

Line Number: 838

Khan Academy - At Ai-Tube.com
7102
1564874280
0

Khan Academy

Joined: Nov ,2006
Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Our interactive practice problems, articles, and videos help students succeed in math, biology, chemistry, physics, history, economics, finance, grammar, and many other topics. Khan Academy provides teachers with data on how their students are doing so they can identify gaps in learning and provide tailored instruction. We also offer free personalized SAT and LSAT practice in partnership with the College Board and the Law School Admission Council. Our resources have been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy each month.

Videos

Comments0 Comments

Add Reply