Northwestern CTD provides academically advanced concepts in fun yet challenging ways that encourage exploration, creativity, and problem-solving for kids in PreK through 6th grade. Older kids (6th-12th grades) can enjoy fast-paced, intensive courses that engage students in critical and creative problem solving as they grapple with advanced concepts in subjects from math and science to writing and technology to leadership and service-learning, producing products such as writing portfolios, original iOS apps, or community action plans.