Here's one for you. I'm educational for sure. I improve vocabulary and reasoning. But I'm fun as well, and I promote grins and laughing. What am I? Dr. DooRiddles, of course! These rhyming riddles provide students with essential skills for good reading and thinking. Students carefully look for clues in each riddle, mentally connecting clues to figure out what is being described. Each book contains 120-160 riddles and, thankfully, the answers. ~ Rachel S.