sensory balloon with matching cards. great for teaching 5 senses to preschoolers or keeping toddler hands busy! Except make balloons all one color, or else they'd memorize the color rather than rely on senses to determine contents.
minus the toilet paper rolls! --Color Sorting using toilet paper rolls and popsicle sticks. This website has a TON great preschool learning activities. I would change it a little for Kinder sight words
Primary level science station for magnets. "Is it magnetic?" This sorting science station is appropriate for pre-k, kindergarten, primary grades, or preschool. With younger children be careful to ensure items size isn't a choking hazard.