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Math - Linear Counting
LevelPrimary
Age4+
Teens Board

This activity teaches the child the names of the numbers 11-19.

## Presentation

1. Lay out the boards as shown. Set 9 ten bars and a bead stair on a small mat.
2. Stack the cards face down with 1 on the top.
3. Take a ten bar and place it to the left of the first 10. Point to the ten bar: "This is ten." Point to the number: "This says ten."
4. Take the unit bead bar and place it to the right of the ten bar. "Ten and one: eleven." Count the beads.
5. Slide the 1 numeral card over the zero in the first 10. "Eleven." Point to the beads: "This is eleven." Point to the number: "This says eleven."
6. Build the other numbers in the same way.

## Material

• An easy alternative would be to simply make a set of cards just like those used for the work with the Golden Beads, only for this set you would need nine "10" cards plus the unit cards 1-9.
• These could be made out of poster board:
(For a detailed description of how this was done, see A Handmade Childhood.)
• These were made from strips of masonite with strips of wooden dowels used for dividers. The numbers were printed on self adhesive paper and then stuck on.
Source: Maybe Montessori

Prices and links checked: 23 January 2022

Teens board
Store Price
Alison's \$39.69
Montessori Outlet
USA print
\$39.95
Montessori Outlet
cursive
\$39.95
Nienhuis
USA print
\$78.35
Affordable Montessori
\$49.00
Affordable Montessori
\$49.00
Store Price
Alison's \$16.53
Bruins \$25.00
Montessori Concepts \$13.00
Montessori Outlet \$9.95
Nienhuis
\$40.50
Nienhuis