In most of the modules in mathematics, theory lessons are strengthened by lab lessons in which students practice whatever they studied in the theory class. This is done with the use of Matlab, Excel and SPSS soft wares. However, explanations on the white board or computer using projectors are time consuming. Additionally, the ability of different students to comprehend lessons varies, with many requiring repeat explanations before they understand. During this time, the fast learners waste time resulting in under-utilization of learning potential. To avoid this situation, a solution has been designed in which we prepare video lessons on lab exercises using Screencastomatic software and Wacom tablets. These videos are then converted into URL and then into QR codes (Quick response). The advantage of this is that students, specially the slow learners, can see such videos in advance, anywhere, anytime, any number of times and at their own pace and can thus come to class better prepared. They can watch these on laptops or mobile phones or computers. QR codes for such lessons are also embedded in class note handouts which can be used by them to retrieve data. Padlet is created and its link is also sent to students who can themselves clarify their doubts and give feedback. Online group discussions are also scheduled whenever required. The advantage is that the students are fully prepared when they come to the lab to do an exercise. The teacher saves time in explaining and can instead utilize that time in helping students enhance their learning. The teacher's efforts and time is now available for more advanced learning. Additionally, such videos can be used repeatedly with minor changes in different classes / semesters. A video bank prepared with all such lessons can be used by other teachers and students whenever required which also brings uniformity in teaching across all classes.
