One of the three tenets of a student succeeding in a course is how well he knows the pre-requisite knowledge for the course (other two tenets are ability and interest). We as instructors can make it easier for students to get to a reasonable competency level by offering short reviews of the pre-requisite knowledge in form of video and/or text.

Here , a student will review via an example the background needed to learn Newton-Raphson method of solving a nonlinear equation of the form f(x)=0.