Decimal System

Choose from the available options to create your own activities or follow our recommendations above.

Choose from the available options to create your own activities or follow our recommendations above.

These full size Séguin teens and tens boards teach the child the number names, symbols and sequence from 10 to 99. They are ideal for use with Montessori beads.

Teens Boards

The two wooden boards have 9 number slots each labelled with 10 and the child counts up sliding the wooden digit cards 1 to 9 into these slots.

The numbers 11 to 19 are particularly difficult for a child to learn as their names are more complicated than those of the rest of the number system. The teens board helps to develop a true understanding of how these numbers are formed from a ten and a unit, and thus teaches the foundations of our decimal system.

Tens Boards

The two wooden boards have 9 number slots 10 to 90 and the child counts up sliding the wooden digit cards 1 to 9 into these slots.

The materials are kept in 2 wooden boxes with lids.

A wooden box for the individual set of small plastic place value number cards (1-9999).

A wooden box for the individual set of plastic place value number cards (1-9999).