Do you need to memorize Piaget's stages for a test? You've found what you're looking for. I'll use some familiar mnemonics ("1 is a bun", etc.) and some wacky images to get those stages - and what during them - into your mind. You'll be able to remember when object permanence occurs, when children are capable of asiimilation and accomdation, abstract and logical thinking, conservation of energy - it's all here. Take the time to watch this video, learn about mnemonics and memorize Piaget's stages of cognitive development once and for all!
Psychology in Everyday Life: The Psych Files