Students develop a concrete understanding of the concept of ten with these connecting train cars, each holding 10 Unifix® Cubes (or other suitable counter). By filling the spaces and connecting the cars, children can see and feel “10 and some more,” 20, 30, etc. Includes ten cars, ten-frame spinner, 20 Unifix® Cubes, and teacher’s guide with games, teaching ideas and assessment instructions. For individual or small group use.