QSP is dedicated to providing outstanding content at a very low price throughout the world. As such, all of our robust, vetted math, science, and engineering lessons are only $0.25!All courses are divided into 45-lesson (one 9-weeks) products so that teachers can purchase only the amount of content that they need.All courses have 45 lessons (one 9-weeks), 90 lessons (one semester), or 180 lessons (full year), and provide full coverage of all learning objectives in a standard US-version of the co