Twin Endings

Tell -ant/-ent, -ance/-ence, -able/-ible, -al/-el/-le apart with word families and a dictionary check.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 2

Some endings sound alike, and that's what makes them tricky. Say important and student. The last syllables sound nearly the same.
Word families help. Important becomes importance, and different becomes difference. Once you know one, you know the other.
For able and ible, try this: if the part before the ending is a whole word, it's usually a b l e. Comfort is a word, so it's comfortable. Vis isn't a word, so it's visible.
A clue that works for many words isn't a promise. When you're not sure, check a dictionary.

Georgia's K-12 English Language Arts Standards:

5.F.P.4.a — Decode and encode words with graphemes that represent multiple letter-sound correspondences.
5.F.P.4.c — Decode and encode words with common prefixes and suffixes.