hypatia,
what a great girl you have : )
your child's speech is not delayed at all if she says so many words. unclear words must also be counted if they are used with meaning
You mean, some practical advices to encourage speaking? I could not find English links. I don't know the right keywords. So I just took advices from Latvian websites
Nibbling of all kinds. displace peas or beans (one after one) from one bowl to another. put beans in the botle. sort beans from peas. browse a book. jingle a bell. string beads.
plastering. playing with nature materials (branches, leaves, shells, barks, sand, stones etc).
my child was late walker, and she crawled 7 months in total. I don't know if it was good because she is not as strong and fast as other kids of her age.