This theme includes four weeks of activity choices for toddlers ages 18-36 months: Week 1: In/Out, Inside/Outside; Week 2: Up/Down, Over/Under; Week 3: On/Off, Open/Closed; Week 4: Big/Little, Hard/Soft. All activities are organized around developmental domains (language, cognitive, social emotional, physical) and include adaptations to meet the needs of all learners.