The Catalyst Challenge is for ATL teachers who have taken a course with Plezmo in June 2020 and are now certified Plezmo teachers. If you are an ATL school teacher who has recently got a Plezmo Certificate, but are hearing of the Catalyst Challenge for the first time, we would suggest that you go back and check your email Inboxes (also check the Promotions/Spam/Junk folders) for an email from us.