Just-in-time-teaching (JiTT) is a teaching and learning strategy where a feedback loop is created between instructor and students in order to focus classroom activities toward concepts the class is having the most difficulty in understanding. The two parts of a JiTT strategy are short exercises done outside of class and the response to the exercises in class. In previous iterations of my introductory course on acoustics, students have been assigned readings to complete and questions to answer based on the assigned readings. Students are required to answer all questions online before the start of class. The instructor is responsible for reading student responses before the start of class and has the opportunity to adjust class activities to address concerns raised by students in their answers. This year, we are modifying the JiTT method to encourage student reflection on the activities completed in class and emphasize critical reading skills. The benefits and challenges of the JiTT method and present modifications are discussed.