Scan the QR codes below to join our Kangaroo Study group chats, where you'll receive: 1) various Olympiad preparation guidance; 2) explanation videos of key math exam topics and past papers; 3) first-hand information on free open classes, mock exams, seminars, and other activities; 4) free help with any questions offered by professional math teachers for your children. Any learning-related issues can be discussed and shared with the group!