advances the state of instructional app development using three learning paradigms for building knowledge foundations, problem-solving, and experimentation. Drawing on research and development lessons gleaned from noted educational technologists, time-tested systematic instructional design processes, and results from user experience design, the book considers the planning and specification of instructional apps that blend media (text, images, sound, and moving pictures) and instructional method. Further, for readers with little to no programming experience, introductory treatments of JavaScript and Python, along with data fundamentals and machine learning techniques, offer a guided journey that produces robust instructional apps and concludes with next steps for advancing the state of instructional app development.