We are building a digital age library of multi-week, multi-disciplinary problem-solving modules for students across a wide range of interests. Explorations are rich in visualizations, Web-links, shared activities, and data sets. They begin with what Einstein called “Proper Questions” as the secret to problem solving. Divided into a series of Inquiries, they use spreadsheets, links, and functional thinking to solve interesting real-world problems that are STEM cross-disciplinary engaging students in financial reasoning and coding.