Is there a low-effort online sprint planning tool I can use to manage small student-project teams?

Question

I'm teaching a college software engineering course, where the students are divided into small teams of 2-3 people. Throughout the semester the students work on their software projects, and I like to introduce them to agile sprint management tools. Would you recommend any online sprint management tools (both paid or free) to help with this?

Note: I've lightly looked into Atlassian Jira Agile, which seems to be overkill (and a higher learning curve for students). I've had students try Trello, which is too lightweight, because I can't view their progress without going to each person's page. If there is a way to easily upgrade or configure these products, that is an ok answer too!

Here are my criteria:

• Students can add tasks and subtasks
• Students can add points/hours to tasks as estimates
• Students can assign tasks to people
• Students can mark tasks as not-started, in-progress, completed
• Students can add labels tasks as different themes or topics
• Students can add sprints / delete sprints
• As a teacher, I can create projects and assign students to a project
• As a teacher, I can see student projects
• As a teacher, I can see agile-burndowns of student points vs accomplished over time
• As a teacher, I can see individual student

Answer 1

I’ve been using VersionOne at my current (mid-sized) company for quite a while. It addresses most, if not all, of your criteria and comes as a free or paid solution including...

• The ability to prepare backlogs by creating stories ('projects'), tasks, sub-tasks, and epics.

• Assigning and prioritizing tasks with points and hours as estimates.

• Scheduling and planning sprints. This includes assigning story and
  task status.

• Conducting reviews and retrospectives after each "sprint".

• Managing and reporting progress on a member by member basis. This includes burn downs.

VersionOne provides a free version. I would encourage you to try it out, or, view one of their many support videos that explain their features in depth. We use the in-house version, but, a hosted version is also available.