Preschool children learn number sense through play and continuous exploration in their natural environment. A quality home learning environment seems to shape children’s numeracy skills at preschool entry, but a quality preschool learning environment influences the future development of children’s numeracy skills. Preschool teachers can organize experiences for children by intentionally setting up the environment to promote these experiences. They can help preschoolers learn and explore number identification and counting 1 to 20. I have created these engaging and hands-on resources to help busy PreK and Kindergarten teachers.