ok heres the deal, i play guitar and have been for about 2 years. Now my brother is starting to learn bass. And i would help him but i have no idea how to get him started. Like when i first started guitar i was told to practice my chords, but what should he do?

Any help will be greatly appreciated.
Defend Your Dreams
scales, arpeggios, songs, common basslines,

1,2,3,4, 1,2,3,4 on every string and keep changing frets so it would be

2,3,4,5, then 3,4,5,6 build speed and stuff...