Stamen, petal, pistil, sepal and stem -- ah, yes, we remember all of those terms from the film strips of our youth. Well, most of them. Help your budding botanist blossom with homework help straight from the hothouse. Sliced down the middle, this 6-inch, foam cross-section of a tulip is labeled on one side and blank on the other for memorization and identification drills, pollinating fertile young minds with the "root"-imentary basics of progenitive plants. Cross Section Flower Model, $14.95 at LearningResources.com.