I Don't Know... Let's Find Out

I enjoy learning new things all the time and I would want my students to enjoy learning the things I teach. I hope to accomplish that objective by exciting my students about Biology. It would be a lie of I told my students I knew everything about Biology. And it's perfectly OK to say "I don't know." because we can then say "Let's find out!" I could get my student's to research the topic for an extra credit opportunity or get back to they after I have done my research and tell them next class time.