what is positive about this video is it shows all the goood things about an app named khandroid for the android which can help with a lot of stuff like math. what i would change is the person has to mention all the negative things. what works well for me in this video is i can use this app for help for example math, english, engineering and more. what i would is mentioning the negative things so the person can know and then the person wont use it. in my opinion maybe you can use fliping the classroom so other people can understand.