As a teacher, mom of four, homeschooler and former preschool coordinator, I'm always looking for educational activities. I'm Montessori and special education trained, so I want them hands-on, too. And cheap or free is good too. Here's a nature craft that even toddlers and preschoolers can enjoy. Special needs students would love these! Rock or shell paperweights. Child-Minder Crafts for Preschoolers: Recycled Paperweight, Door Stop