The classes

classes: (1st to 2nd years pick four of them and dont forget to say what period you have them) (4th years 5 classes) (5 to 6th years 6 classes) (7 and + years 8 classes)
1.Fortune telling - peirods taught - 1st, 2nd, 4th, 6th, and 8th
2.mythical creatures - peirods taught - 2nd, 3rd, 5th, and 7th
3.defense against the dark arts - peirods taught - 3rd, 4th, 5th, and 8th
4.potions -peirods taught - 2nd, 5th, 6th, 7th, and 8th
5.flying - periods taught - 8th, 2nd, 3rd, and 5th
6.Care Of Magical Creatures - 1st and any other time except for 2nd and 3rd
7.Divination - from 4th and on ward
8.Ancient Runes - 1st, 5th, 6th, 7th and 8th
9.Muggle Studies - every class period
10.Arithmancy - every class period
11.Charms - every class period
12.History of Magic - 1st, 2nd (and ever class except 3rd and 4th)
13.Herbology - 5th, 6th, and 7th
14.Transfiguration - 1st, 3rd, 5th, (any odd number)
15.Astronomy - 2nd, 4th, 6th (and any even number)