Here is the full list of all 110 School of Dragons achievements.
Shear black sheep 100 times.
Harvest 300 pumpkins.
Visit 40 different farms.
Visit 25 different farms.
Visit 15 different farms.
Visit 10 different farms.
Play with your dragon 75 times.
Catch 50 salmon.
Catch 100 eel.
Play with your dragon 50 times.
Shear sheep 100 times.
Catch 50 eel.
Harvest 150 pumpkins.
Visit a friend for the first time.
Make 5 friends.
Harvest 90 pumpkins.
Get First Place in a Thunder Run race 5 times.
Collect 60 sheep.
Collect 30 sheep.
Collect 15 sheep.
Collect 5 sheep.
Shear black sheep 50 times.
Shear sheep 50 times.
Collect 300 chicken eggs.
Play single player Thunder Run Racing 50 times.
Catch 25 salmon.
Play single player Thunder Run Racing 30 times.
Play single player Thunder Run Racing 20 times.
Catch 250 fish.
Play Fireball Frenzy 40 times.
Feed your dragon 100 fish.
Harvest 30 pumpkins.
Play Fireball Frenzy 25 times.
Collect 150 chicken eggs.
Play single player Thunder Run Racing 10 times.
Play Fireball Frenzy 15 times.
Feed your dragon 75 fish.
Shear black sheep 25 times.
Collect 75 chicken eggs.
Harvest corn 150 times.
Catch 150 fish.
Catch 25 eel.
Catch 10 salmon.
Shear sheep 25 times.
Harvest corn 75 times.
Play with your dragon 25 times.
Make 1 friend.
Harvest corn 45 times.
Shear black sheep 10 times.
Catch 100 fish.
Collect 15 chicken eggs.
Shear sheep 10 times.
Feed your dragon 50 fish.
Harvest corn 15 times.
Harvest 100 dragon nip.
Harvest 50 dragon nip.
Harvest 30 dragon nip.
Harvest 10 dragon nip.
Catch 50 fish.
Catch 10 eel.
Play with your dragon 10 times.
Join a Clan.
Get 25 A+'s in Flight Club.
Play single player Thunder Run Racing for the first time.
Feed your dragon 25 fish.
Play Fireball Frenzy 5 times.
Get 20 A+'s in Flight Club.
Complete 25 different Flight Club lessons.
Complete 20 different Flight Club lessons.
Play Fireball Frenzy for the first time.
Catch a fish for the first time.
Get 10 A+'s in Flight Club.
Complete 15 different Flight Club lessons.
Complete 10 different Flight Club lessons.
Get 5 A+'s in Flight Club.
Get an A+ in Flight Club.
Complete a Flight Club lesson for the first time.
Fly with Toothless.
Make 10 friends.
Create your own Clan.
Visit 10 different friends.
Visit 15 different friends.
Visit 25 different friends.
Visit 40 different friends.
Get an A+ on 3 Meatlug lessons.
Get an A+ on 3 Groundsplitter lessons.
Get an A+ on 5 Night Fury lessons.
Get First Place in a Thunder Run race 10 times.
Get First Place in a Thunder Run race 20 times.
Get First Place in a Thunder Run race 30 times.
Buy 5 decorations for your farm.
Buy 15 decorations for your farm.
Buy 30 decorations for your farm.
Buy 50 decorations for your farm.
Win your first challenge.
Catch 100 salmon.
Visit 10 different Vikings' About Me pages.
Visit 20 different Vikings' About Me pages.
Visit 30 different Vikings' About Me pages.
Visit 50 different Vikings' About Me pages.
Win 5 challenges.
Win 10 challenges.
Win 25 challenges.
Win 50 challenges.
Make 20 friends.
Make 50 friends.
Visit 50 different friends.
Visit 75 different friends.
Visit 100 different friends.
Visit 150 different friends.