Logic of English vs Teaching Textbooks

Logic of English has no write-up on Specifiction yet; its figures are above.

Teaching Textbooks provides digital math courses from Math 3 through Pre-Calculus for students and homeschool families. Course apps combine interactive lectures with step-by-step video solutions, then automatically grade student work and save it in a printable gradebook. Each app has a searchable eBook that parents can view or print through the Parent Portal, where they can also review grades, change student settings, pause enrollments, and access answer keys. Students can work offline for up to six lessons before reconnecting. A free trial covers the program through lesson 15, has no time limit, and carries completed grades into a purchased course. Enrollments provide one student with one grade level and 12 months of access, with 90 days of pause time; moving to another grade requires a new enrollment. Listed prices begin at $48.95, paid once for Math 3, Math 4, and Math 5, and reach $83.95, paid once for Algebra 2 and Pre-Calculus. Apps are available for Android, iOS, Mac, Windows, Chromebook, and Kindle devices.