Learning Resources Rekenrod Foam Ten-Frames (Set of 4). Two-sided foam counters help students develop number concepts and learn basic facts to ten and beyond. These ten-frames help students connect the visualisation of the Rekenrod tool to the number ten within the ten-frame structure. Boards connect to each other and counters. Measures 16cm x 8cm x 1cm. Set includes four frames. Suitable for ages 5+.