1. First visit www.bernardzell.org/calendar on your desktop or mobile. 
2. Click the button that says "All School Events" for a monthly view
3. Next, select the RSS feed button that's located in the top right corner of the calendar. See photo below.

4. Select the green ICAL button next to Family Events Calendar as shown in the screenshot below. 

5. Now select the option "Add to default Calendar App (Outlook, 2k7, Apple iCal, etc.)"  
6. You will then be prompted to confirm adding the calendar to your personal calendar. 
7. You are all set!