Hi a very warm welcome to the site. This is an indepth criteria with lots of research attached.
Your handbook may have a section for reading -
pg 149 of the STL or
page 48+ of the CYPW handbook
Your tutor may have materials to hand out during class.
This
free child development sample chapter from Pearson
This
thread on the forum has a variety of links you may find useful
A handbook dedicated to child and young person's development will be most supportive -
0-19 years old on amazon.co.uk
There is also the
Development Matters publication for children in EYFS
You'll also find a number of existing threads if you enter
rate and sequence into the search page
Hope this helps a little, best wishes with your study