Sad and Fifteen's problem

When he has a smartphone in his hand, it's hard .

the way Dr. Know replies

First, she  of Sad and Fifteen's problem.

Then, she gives advice.

Dr. Know's advice

develop a new habit like taking more activities

put a note on the phone's home screen to remind him to finish his homework first

*homework first and then he can play on the phone *give himself  chances to play on the phone *the time of playing on the phone

ask his parents for help