From experience, I'd say that jumps are one of the most dangerous things to do snowboarding so take your time. Patience is your friend. My worst falls EVER were from jumps.
- Ragdoll double cartwheel...maybe it was triple, not sure.
- Horizontal pose faceplant landing on knuckle...my friends and I left park after seeing that.
- Edge catch on pipe to faceplant cracking goggle...ski shoppie said he's never seen that in his life but got me a "warrantee replacement for free".
- And just a couple of weeks ago, light separated shoulder from taking off in the wrong angle...I still can't lift my arm all the way up.