In Episode 5 of Math Spies I introduce function tables as a way to see patterns in number. My students love the series of tasks I have created called Coded Messages. They use a blank function table like the one shown below to find the pattern and then use it to solve a coded message.
I am a third generation public school teacher who has been in education since 1987. I have taught elementary students full time for 20+ years. I am also a freelance curriculum writer. You can contact me at mrs.mjbauer(at)gmail(dot)com.