This paper, part of the GIREP 2020 Webinar Proceedings, introduces a set of asynchronous online lectures that aim to foster student engagement and sense making through use of clickers, built-in feedback, and multiple representations. Our project builds on two recent initiatives of the research team, both involving the development of adaptive online materials. The first was the creation of Interactive Video Vignettes (IVVs) that target student conceptual understanding of topics for which they are known to struggle. The second project is Interactive Video-Enhanced Tutorials (IVETs), which focus on developing students' problem-solving abilities. IVETs are web-based activities that lead students through a solution using expert-like problem-solving approaches, such as those needed for solving problems involving conservation of energy or linear momentum. In building these instructional materials during the COVID-19 pandemic, five instructors created and shared their Interactive Online Lectures for the first semester of an introductory calculus-based physics course. Each lecture consisted of short video lecture segments interspersed with required multiple-choice clicker questions designed to help students understand the content. After submitting an answer, the student sees an explanation of why that answer is right or wrong. The paper presents initial outcomes along with full explanations of each component of the IVETs.