CTCMath vs Master Books

CTCMath is a hybrid math curriculum for kindergarten through Grade 12, with material ranging from early grades through Algebra 1, Geometry, Algebra II, Pre-Calculus, and Calculus. It pairs video instruction with interactive practice and optional printable worksheets. The site lists more than 1,400 tutorials, generally 4–9 minutes long, with synchronized audio and animation. Practice questions and worksheets are automatically marked and recorded; printable worked solutions show the steps behind answers. Progress reports include lesson results, scores, pass dates, and time spent, while standard and comprehensive placement tests cover each topic in grades K–8. Lesson plans, assessments, and parent guidance are included. The service runs on web, iOS, and Android. Paid memberships are $39.90 a month for one student or $59.90 a month for more than one student. CTCMath presents the curriculum for parents, teachers, and homeschoolers.

Master Books publishes Christian homeschool curriculum, biblical apologetics books, and other educational resources. Families can choose Basic 4 Subject Sets combining math, science, language arts, and history, or assemble a custom package by subject. Master Books Academy adds online courses in math, language arts, history, science, art, and electives, delivered as prerecorded, self-paced video lessons. Users who sign up or log in can preview the first week's lessons for free. An individual course costs $59.95, paid once purchase, with prices varying by course, and provides access for 18 months. Course pages identify required books or supplies, while standalone materials can be printed from PDFs. The curriculum spans preschool through high school and includes lesson plans, assessments, and parent guidance. Videos may be shared with immediate family in one household, but each purchase allows one account to enroll in a class. Classroom, co-op, or group use requires an individual seat license for each student. Academy courses are non-refundable and non-transferable.