When one of the Admins of your organization sets up a Learning path for your direct reports, as their manager, you might get a task to approve their answers.
The learning path creator can also provide reference instructions for the approvers if needed when creating the learning step, so you might see some instructions with your approval task. You will also see whether the user will need approval before they can continue to the next step, or if they can continue without waiting for your approval.
You will find the 'Approval Dashboard' under the Learning module. Once you open it, you will see the tasks that are pending for approval. The tasks will be divided by the name of the task. If you wanted to see approved, resubmission required, or approval not required tasks, you can find these by filtering these statuses.
Once you select one or all the responses, you will see buttons at the bottom of the page to approve, request re-submission, or unselect.