Our main source we used was 2 Teaching Mommies Bee Printable Pack.
We also watched this video to learn more about bees.
We visited this website Buzz About Bees.
We also sang "Bringing Home a Baby Bumblebee" If you need the words or the tune you can watch this video. I usually only sing the first 3 verses myself.
I tried to convince my son to do a bee craft or at least a coloring page, but he had not interest in that today so I didn't force the issue.
With the school year coming to a close I am going to be a little more relaxed with our preschool schedule and plans. At this point I only have two themes a week for May and they will mostly be pretty low key. I can see that my son is getting tired and I don't want him to dislike preschool. We'll see how things go. I will be trying to follow his lead.