i visited the online maths class in this i go to the byju's class web.here i saw the interactive online home tutions.

*learn from indias top teachers

*get doubts cleared instantly by specially assigned teachers

*attend personalised extra classes to understand and strengthen weak topics

*prepare for exams like NTSE and olympiads

then i visited the khans academy online class 

here

this academy is usefull for free online class .here every child deserves the chance to learn.

i am finally able to differentiate that the khans academy is most use full and free online class that helpfull to our childrens