Simplified Forcecasting
Player's Handbook · Appendix B: Recommended Variant Rules
The current version of the SW5e PHB has the player using different ability scores depending on the alignment of the powers they are trying to cast: Wisdom for light side, Charisma for dark side, player's choice for universal.
For new players, this might be too complicated. Consider letting them instead choose between using Wisdom and Charisma as their forcecasting ability.
Why I Recommend This Rule
This is a wonderful simplification for new players. I, personally, love the alignment determining the forcecasting ability, and I have relatively experienced players, so I haven't felt a need to use this.