Hi a warm welcome to the site. You may need to check with your tutor to ask if it's American Lowenfield or England's Graham Wallas' 5 stages of the creative process ( preparation, incubation, intimation, insight, verification) that you need to be researching xx
You can find information about imaginative play in the
Best Play publication available free on Play England and in the
sample CYPOP 7 chapter here.
or if you have access to this
level 3 handbook on amazon use the index to search for creative development. (page 405+)
You might also find this thread useful
https://www.silkysteps.com/forum/showthread.php?t=12647
Best wishes