how to write free verse poems?!?

[LaLa]

So I'm in 10th grade and i fail at writing poetry.. my english teacher has 3 rules:

no rhyming (she hates it)
dont tell the audience how to feel
and it has to be less then 30 words

i was thinking maybe i can write about memories, or how i used to play in the snow when i was little (i live in utah, it snow alot here)

but its hard to do under 30 words.. HELP! thanks (:

[Kam]

my hour is snow white,
i must run out and go, see
a hand full of powder,
but with everyone's smiles,
memories of sipping cool winter,
yet to see another...