Blendspace

You can use a free Blendspace account to create linear lessons to guide students through basic content. For instance, a middle school biology teacher could share a lesson about photosynthesis and upload links, images and videos, text, and short quizzes to help build student knowledge. Have students design their own grids to review for a test, curate resources for a passion project, or create presentations to share with their peers. Then mix up the delivery by creating a virtual gallery walk with links to students' projects, giving them an opportunity to provide feedback to their peers via the discussion tool. Looking to differentiate? Create a row of videos, a row of text, and a row of links to interactive tools, and let kids learn according to their preferred option. Alternatively, you can require kids to choose one from each row in order to gain perspective in a variety of ways. 

Take advantage of the vast library of resources, including free and paid teacher-created lessons to share with your students (user ratings for different resources are helpful when deciding which content to include). Take the time to add a variety of resources to keep students on track and engaged as they move through the lesson. You can add directions and encourage discussion with the sidebar chat, too; just be sure to monitor student responses for relevance and appropriateness.

Holding students accountable for learning is a bit tricky. Other than the discussion tool, it's tough to know whether or not students are engaging with the resources. Students who struggle to learn independently will likely need additional support as they move through the lessons. You'll want to create opportunities for assessment along the way to ensure that students are grasping the material. Blendspace can be a great addition to the classroom, but it doesn't replace instruction.