This 27 piece puzzle covers numbers from 1-9. Children can assemble the jigsaw puzzle while building on their number recognition and understanding of equivalency! A large teaching abacus for playing games in several ways: in a vertical direction, children can associate the symbols from 1 to 9 with the respective quantities; in a horizontal direction, they then place numbers and quantities in sequence. Teach number concepts from 1-9 Perfect puzzle for visual learners Match the quantities to the numerals 27 self correcting pieces for independent play