Well, this is a recurring question. It's simple, our groups receive 1.5hrs every week except on school holidays. In general as an average we deliver 3.8 lessons per month (5.7hours of Coding and Robotics per month) taking a full schooling year (10 months). Of course if you join in the month of December what's likely to happen is that you will receive 3 lessons, but some other months depending on the weekday of you lesson, you'd receive up to 5 lessons in a month.
You will find the school holiday list in a yellow button on every GROUP tab, on every school page in this website, for instance you can take a look at the calendar at UNITED WORLD COLLEGE to find this yellow button at the top.