Task: I want to use the Khan Academy app to help my child with his math homework, thus i want to view a video on understanding mass and volumes of 
Steps:
swipe up at the screen to view the details 
swipe up at the screen to view the details 
swipe up at the screen to view the details 
swipe up at the screen to view the details 
swipe up at the screen to view the details 
swipe up at the screen to view the details 
click on the top second option at the screen to view video 
click on the first option at top of the screen