The best performers in the National mathematics competitions are invited to take part in very demanding international extension challenges. This year we had four who cleared the hurdle in the Senior event and took part in the Kangaroo round. Best amongst them was Emily Barker who scored an excellent 60 marks to gain a merit (the top award possible, given to the top 25% of candidates – on this occasion those scoring 50 or above). Not far behind, and earning qualification certificates, were Jason Li, Catherine Hua and Cara Pan. Many congratulations to our quartet.