(106b) Reading and Repetition Using an Interactive Textbook for Material and Energy Balances

zyBooks creates interactive textbook replacements, and a zyBook for a material and energy balances course will be discussed. Features of the interactive textbook were highlighted previously, including animations, question sets, and auto-graded homework questions. Reading analytics have been presented previously with average reading rates of 87 and 93% for 2016 and 2017, respectively (n = 100 in 2016 and 88 in 2017). Now, new research questions are asked based on large sets of web analytics generated by students using/reading the interactive textbook. The high reading rates correspond to thousands of complete animation views, and new data will cover the most popular animations from the number of students re-watching an animation. Further analysis of students’ attempts and success when completing auto-graded homework problems within randomized numbers and content will be presented. For the 2018 cohort, over 280 auto-graded questions were assigned to the students. Questions needing the most attempts before correct will be identified and analyzed. Finally, in addition to re-watching animations, students complete many attempts after answering the auto-graded questions correctly and earning their grade, i.e., performing self-guided repetition.