Teaching them without them knowing they're being taught

I love having a weekly plan on what we'll be working on or learning here everyday. Sometimes I'm well prepared and other times I just have a general idea of what I want to do with the kids. Either way, I like to make the best of the time I have with them.

We work on themes such as Disney week which lands around Mickey Mouse's birthday, November 18th. During that week we read Disney books, color Disney character themed pictures and of course at least one or two fun Mickey Mouse crafts. Other themes through out the year are 
-winter animals
-bugs
-ocean
-Halloween
-thanksgiving
-Christmas and so on....

Some weeks are made to focus on each individuals strengths or whatever they are having a problem with such as identifying letters or numbers. Two boys in my group this year will be starting 4k next September and need to work on writing their names while another boy and girl need to focus on the basics such as good manners and using their words. Sometimes focusing on all that brain work, some may start to feel pressured and need to relax. Remember we want to encourage that learning is FUN! It will get easier with more practice.

Want a quick and easy way to encourage their learning without them knowing they are being taught?! I sometimes simply let them pick whatever color paper they want, write or draw something on it that they need work on (this week it was their first letter of their name) then with whatever color paint they choose, they are to follow the lines and finger paint! BAM, you got yourself sensory, motor skills and the reminder of identifying their letter all in one simple project!
After that, I let go of my controlling side, let them pick another color of paper, let them choose their paint colors and just have fun creating their own masterpiece! While doing this they are not only having fun but start seeing the different colors they make while mixing. These simple projects also help them feel they have control over something which for some kids is very much needed.