The default Frost leveling build (wowforeverbuilds.com), 51 points, grouped by level range.
GIF1.Mage.0000000000000000000-00000000000000000-2555323331221321251
Levels 10–19
- from 10: Improved Frostbolt 5/5
- from 15: Frostbite 3/3
- from 18: Ice Shards 2/5
Levels 20–29
- from 20: Ice Shards 5/5
- from 23: Improved Frost Nova 2/2
- from 25: Ice Lance 1/1
- from 26: Piercing Ice 3/3
- from 29: Shatter 1/3
Levels 30–39
- from 30: Shatter 3/3
- from 32: Ice Block 1/1
- from 33: Cold Snap 1/1
- from 34: Fingers of Frost 2/2
- from 36: Frost Channeling 2/3
- from 38: Elemental Precision 2/5
Levels 40–49
- from 40: Ice Barrier 1/1
- from 41: Frost Channeling 3/3
- from 42: Winter's Chill 5/5
- from 47: Arctic Reach 2/2
- from 49: Elemental Precision 3/5
Levels 50–59
- from 50: Elemental Precision 5/5
- from 52: Permafrost 3/3
- from 55: Frost Warding 2/2
- from 57: Improved Cone of Cold 2/3
- from 59: Improved Blizzard 1/3
Levels 60–60
- from 60: Improved Blizzard 2/3