Learning Resources Reading Rods Building Sight Words. Build early years sight-reading skills with this hands-on set. The colour-coded interlocking rods include consonants, vowels, digraphs, vowel teams, as well as hearts for building high frequency English words children need to learn by heart. Rods for letters such as b and d feature dots for correct orientation. Includes 64 colour-coded rods in a box with dividers for organisation, and a Teachers Guide with free downloadable content. (Ages 5+)