APPLICATION OF KHAN ACADEMY AS A WORKED-EXAMPLE VIDEO PODCAST TO SUPPLEMENT HIGH SCHOOL CALCULUS LEARNING

One of the latest innovative approaches to supplementing mathematics classes is through using Khan Academy as a Worked-Example Video Podcast (WEVP). The video podcast includes step-by-step explanations of specific procedural problems found in mathematics. The impact of WEVP as a supplemental material has been studied sparingly, and there is none in high school calculus. The researchers examine the effect of Khan Academy WEVP as a supplement tool on the teaching of calculus to Grade 12 IBDP Math Standard Level students in a Chinese foreign school. Twenty-one students in the experimental group viewed a series of 20 video clips meant to teach key calculus ideas individually, while the remaining 21 students in the comparison group were given revision papers and received no other intervention. Pre-and posttests were used to collect data from both groups. The experimental group also received a self-report survey and open-ended questions. Results indicated that students who used WEVP did not do significantly better than the other group. However, most students enjoy using Khan Academy WEVP because it helps them understand the topic, pace their studies, prepare for tests, complete homework, and those who struggle with textbooks or lecturers. Thus, this study recommends including Khan Academy WEVP in high school calculus instruction for the aforementioned positive feedback. However, teachers should also consider the demotivating factors when using such video podcasts in their classes.