Active learning for ones, the second book in the four-volume "Active Learning Series, " has over 300 activities for Ones, 12 months through 24 months old. The activities are easy to read and do with one toddler or a small group; "Ones Can" lists help caregivers choose the right activities for each toddler. Ideas on setting up environments for Ones and an easy system for writing plans help caregivers set the stage for a good activity program.