Step 1:

Navigate to the Semesters page by clicking the gear icon in the top-right corner, then clicking Semesters.

Step 2:

Hover your mouse over your previous semesters to display the available options, as shown below:

Step 3:

Click the blue Planner button to be taken to the first week of lessons for that semester. You can now use the day/week view to navigate to surrounding lessons.

Step 1:

Navigate to Unit View, and then click on the left arrow beside the date.

Step 2:

That will change the semester to be the previous one, and you can now select a class from the dropdown.

Now, you will see a list of all the lessons for that class, for that previous semester. That's it!

Step 1:

From the day or week view, navigate to the past dates of that semester! For example, if my Year 1 semester was in 2016 and it is currently 2017, navigate to a day/week in 2016 in Planboard and voila, it'll show your old lessons!

Step 1:

Tab on the date at the top of your planner view.

Step 2:

Navigate the calendar and tap on the date you wish to view.

Step 1:

Tab on the date at the top of your planner view.

Step 2:

Navigate the calendar and tap on the date you wish to view.