Calvert Preschool promotes critical thinking skills while introducing your child to formal education and fundamental concepts in core subjects. These flexible courses easily can be adapted to a variety of daily schedules and program objectives. Each set features a student book with colorful, hands-on lessons, as well as a teacher's guide stuffed with answer keys, lesson plans, and tips to enrich your child's learning. Each set also includes a separate resource book with full-color pages of practice to reinforce foundational concepts.