CK-12 FlexBook 2.0 vs Oxford Learner’s Bookshelf

CK-12 FlexBook 2.0 provides customizable digital textbooks for K–12 subjects including science, math, and social studies. Lessons can combine text with PLIX interactives, simulations, adaptive practice, and related learning materials. Adaptive Practice draws questions from a library of more than 150,000 and adjusts selections based on student answers. Teachers can assign lessons, videos, interactives, and practice to whole classes or differentiated groups, then view progress reports. Educators can reorder chapters and edit or add content in customized FlexBooks. The service works in browsers on laptops, desktops, Chromebooks, tablets, and mobile devices, and is listed at free. Standalone Simulations and PLIX Interactives require a tablet-size screen or larger. Users may download PDFs of FlexBooks they create or customize, though interactive content may not render; CK-12-created PDFs are not downloadable. CK-12 says it is still converting all core content to FlexBook 2.0. Listed SSO or LMS partners include Google Classroom, Canvas, Schoology, Kiddom, Clever, and ClassLink.

Oxford Learner’s Bookshelf provides interactive Oxford e-books for teaching and learning English. Its catalog includes Graded Readers, course student books and workbooks, grammar and reference books, and professional development for teachers. Some courses are available as digital packs with e-books and Online Practice, and users can register for free samples. Depending on the title, books may include activities, video, audio, answer checking, adjustable audio speed, and pronunciation recording and comparison. Readers can add sticky or voice notes, highlight or underline text, and annotate pages. Books downloaded in the apps can be used offline, and cloud sync can carry answers, notes, marks, bookmarks, and last-page position between devices. Teachers can assign e-books and Classroom Presentation Tools; for some courses, they can track student progress and scores in a gradebook. Books require an Oxford ID and a licence or access code. Prices vary by title, and no price is listed here. Audio notes and pronunciation practice cannot be recorded in Edge or Safari; the help page directs users to Chrome or Firefox for recording.