Find lessons for middle/high school students are meant for self-directed online learning. All lessons also include practice questions to use for pre-assessment and practice, as well as links to longer, more formal tests and worksheets to assess what students have learned. Assigning lessons is simple and doesn’t require students to have accounts.
Help Teaching: Online Lessons for Self-Directed Learning
Resource Link: https://www.helpteaching.com/self-paced-lessons.htm