Three-in-one slides help you make the most of your instructional time. * Provides 3 different specimens per slide, so students spend less time reloading and more time sharpening scientific observation skills * Introduces the use of tools to observe and collect data on a variety of common items, including sugar, mosquito larva, fly wing, cactus and more * Includes 12 prepared and 3 blank slides with mounting stickers so students can create their own slides * Set of 15 slides measures 3"L x 1"W and stores in the compact carton