Hi, when it's next appropriate ask your class teacher if they know of a solution for inexperience & if they can help you find it.
As recommended there are some useful books available -
another.
Many libraries have a title check facility online, maybe pop in to ask if they would order one in if not listed?
See what observational formats the nursery currently uses to record information, this will help to focus on what's expected of you within a workplace.
Best wishes xx