00000nam a2200000 a 4500 20251203114945.0 9789811205828 510.79 GER Geretschläger, Robert Ed. Engaging young students in mathematics through competitions world perspectives and practices vol.1 Singapore Worl Scientific c2018 xvi, 176p. 24cm. HB Problem solving in mathematics and beyond , Vol 13 Includes index _ Mathematics Competitions Study and teaching _ _ _ 216296 R 204697 204697 0 0 0 1 PU PU 2020-06-22 4324.80 0 510.79 GER 216296 R