Exposure Lock (AE-L Button) is the abbreviation stands for Automatic Exposure Lock. It is useful using automatic and semi-automatic shooting modes. Where has this information been all my photographing life? So freaking helpful it's not even funny.
Robotics is a challenging subject to teach, and Mindstorms helps to remove some of the difficult barriers and to engage kids quickly with fun and interesting projects. Here are some of our favorite Lego Mindstorms projects from around the web.
Composition by Kali Ciesemier. Sub lesson. Read, draw two quick pics one w/good composition one bad, pass to neighbor, must identify which is good and bad and explain why. Prize for most creative composition and best explanation.