CK-12 FlexBook 2.0 vs Edpuzzle

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.

Edpuzzle is an online learning platform for teachers and educational institutions to assign interactive video lessons and follow student progress. Teachers can choose a YouTube video, upload their own, or reuse another teacher’s lesson, then add voice recordings and questions. The Question Generator can insert multiple-choice or open-ended questions, though it may be unavailable if a video lacks enough information. Students can work at their own pace while teachers check progress in real time. Integrations include learning management systems such as Google Classroom, Microsoft Teams, Canvas, Schoology, Moodle, Blackboard, and others. The Google Classroom add-on lets teachers manage assignments there, and students can complete lessons without a separate Edpuzzle account. Progress tracking requires student accounts, except in open classes. Edpuzzle offers web, iOS, and Android apps, plus a Chrome extension for screen recording and importing YouTube videos. The free Basic plan includes 20 interactive activities and 10 supported assignments. Pro Teacher costs $13.75 a month and includes unlimited activities and 120 supported assignments. Extra supported assignments, up to 250 total, cost an additional $19.25/month on annual plans only.