BookShark vs CTCMath

BookShark is a literature-based homeschool curriculum for Pre-K through age 16, with History, Science, Language Arts, and several math options. Rather than fixed grades, it uses flexible age-based levels, and children within three years of age can share a Reading with History program while following separate Math and Language Arts levels. Schedules run for 36 weeks, four days per week, with lesson plans, assessments, and parent guidance. BookShark Virtual adds online reading schedules, assessments with instant auto-graded results, parent work tracking, customizable assessments, and student messaging. It integrates Math-U-See and accepts schedules or assignment uploads for Singapore, Singapore Dimensions, Saxon, and RightStart. Virtual does not replace the physical books. Each seat covers one student and one teacher account, and courses must be used within six months of purchase. Families can try the first week of a Virtual course free. Listed Virtual seats range from $88, paid once to $300, paid once; BookShark's pricing note also says From $309.43 · 7-day trial.

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.