Option 1:
To edit your child's grade, press the Home Button with the Higher Volume button to enter the Parent Settings Menu.
Select the Manage Profiles option.
Use the arrows above and below the grade to change the grade.

Press the green checkmark to save this change.

Option 2:
From the Home Screen, tap on the child’s name or picture at the top of the screen.
This will bring up the “About Me” Screen.
Look for the button with a pencil.
This will launch the Edit Profile screen.
Use the arrows above and below the grade to change the grade.
Press the green checkmark to save this change.