You might have to guess what some of these lessons are, but its not too hard first stanza is about the homework in general

Lessons and Homework

I gaze upon your irksome words
And think of things to write
For some, the ideas come in herds
For me, inspiration's tight

The Runes that come in old stones
On paper and on wood
Will etch themselves upon my bones
If I ever think them good

The numbers in Arithmancy
Where one plus one is two
Will scramble brains to their fancy
'Til the answer ne'er comes to you

Astronomy, with moons and stars
And planets made of gas
If I could fling this work to Mars
I'd party o'er this landmass

The creatures of this wizarding world
Well, they don't seem so bad
But wait 'til they take a bite outta you
And you hafta draw one... without your hand

The subject that seems easiest
Well... magic-wise... is Charms
But you go make a Pineapple dance
And tell me it's no harm

Defence Against the Dark Arts
One you can't be without
To magically stop one with a Dark heart
Instead of punching them in the snout

The lesson not for doubtfuls
Where the future is divined
'Prophecies' made in mouthfuls
And some are less than kind

Venemous Tentacula
You'd do well to watch your back
Though Herbology ain't spectacular
The danger has no lack

There's tales of great rebellions
And wars, about things earned
But the textbook is but a skeleton
To fun info, never learned

So, this class is quite pointless
If you were raised by muggle folk
To good wizards it is fascinating
To death eaters, a tasteless joke

All kinds of real gross creature parts
Are used in a pewter pot
The result will smell like rat farts
If your potion starts to rot

Now, soaring high on school brooms
That's one thing we should like
No cars will backfire with great BOOMS
No effort of a bike

Transfiguration is super
It calls for use of wand
You can point this at your homework
It's there, then- POOF!- it's gone!