Need Macros for Druid

Hi
I started playing a Druid, i want to make a Bear Tank, but i'm new to wow and don't know exactly how macros work. I looked online, but all i found refered to stuff that seems to be older or more recent than WOTLK and it's not what i need.
All i'm looking for is macros to let me cast things like Mark of the Wild, Thorns, Healing Touch and Rejuvenation while staying (coming back to) Bear Form.

why do you need a macro for those spells?

Put those spells on your action bar -> using those spells will also remove Bear Form.

If you have no space for new spells to add then you need to enable addional action bars from "Interface" setting