Write information text?

Hello,

I really need your help because I have a German test on Friday. We're studying the topic of writing informational texts, but I have no idea how to do it. I asked my classmates and they said it's easy – you just have to answer the 'W' questions in the introduction – but that didn't help me. I don't have my teacher this week except on Friday, but that's when we're writing the test, and I didn't have the courage to do it beforehand because I thought she'd fail because someone still doesn't know how to write an informational text after two weeks.

Do you have any videos, study notes, websites, etc. that could help me?

Thanks in advance