The Number Rod Track is super for all number work up to 100. The track clips together in sections of 10, so if you just want to work on the 1 to 10 and teen numbers, then just clip the first 2 sections together. There is a channel down the centre of the track into which you slot the Numicon Rods (same as Cuisenaire) for all sorts of investigations e.g. superb for teaching number bonds using 2 or 3 set addends, teaching place value, partitioning, counting onwards in 10’s from a given number, building multiplication facts, division facts, fractions etc. all of which are set out in the Teaching Manuals.