The small calculation frame enables even small children to calculate with numbers in the thousands. The pearls are shifted depending on the calculation and the result can already be read.

The child is given a task, for example, 173 + 91. By simply moving the pearls in the respective area, the number is added. Subtractions are also easy to carry out.

Application, advantages, areas of application for this Montessori material:

• • Practice adding up to a result of 9,999

• • Made in Germany

• • Learn subtractions below 9,999

• • Montessori material for children from 5 years

• • Understand multiplications up to 9,999

Scope of the Montessori material:
wooden frame with metal rods and wooden balls, approx. 25.5 x 17 x 4.5 cm

Instructions for the small Montessori calculation frame

The adult places the computing frame on the table in front of him.
The pearls of the computing frame are on the left. Now he pushes a green single pearl on the right side and says: This is one. Then he takes a bead of ten, also pushes it to the right and says: That's ten. The remaining pearl categories are introduced in the same way (hundreds, thousands).

For better clarity, the branded game or the golden pearl material can be added to this exercise. Here the adult pushes the single bead of the computing frame to the right, then places the single tile from the token game or a single bead made from the bead material on the table and says: This is one. Likewise with everyone else.

If the calculation framework is now in place, the next exercise can be started.
The adult begins with the one's pearls. He pushes bead by bead from left to right and counts aloud (one, two, three ... ten). Now we switch to the next category: We swap ten ones for a ten. Now the ten ones are pushed back to the left and a bead of ten to the right. The tens of pearls are counted in steps of ten (ten, twenty .... one hundred - exchange ten tens for one hundred pearl). The remaining pearls are also counted.

As in the token game, arithmetic problems can be solved (231 + 924 - one single pearl, three tens pearls and two hundred pearls 231 plus 924 are now added four ones, two tens and nine hundred pearls. With this task, a category change can be made can be practiced by exchanging the ten hundred bead for a thousand bead

Multiplication with the Montessori arithmetic logic frame
The beads in the arithmetic logic frame are on the left-hand side.
There the respective number category is printed for each row of beads (units , tens, hundreds ...)

One Task is chosen eg 574 x 2 =

Now the math is done in your head: First the units (here 4), then the tens (here 7) and then the hundreds (here 5) are multiplied by 2.

4 x 2 = 8 (8 green ones are pushed to the right)
7 x 2 = 14 (14 tens are 1 hundred and 4 tens - 4 blue tens and one red hundreds
are pushed to the right)
5 x 2 = 10 (10 hundreds are 1 thousand - 1 green thousand

bead is pushed to the right) From top to bottom are the following beads on the right edge of the calculation frame:

8 green ones
4 blue tens
1 red hundred
1 green thousand

The result can be read from bottom to top: 1148

tasks with the exchange:

Some tasks require the exchange of pearls for the next number category, e.g.

378 x 4 =

8 x 4 = 32 (are pushed to the right: 2 green ones, 3 blue tens)

7 x 4 = 28 (are pushed to the right: 8 blue tens - does not work because only ten pearls

are available per row and three are already behind Now you

first, move the remaining seven to the right, then the 10 tens are

exchanged for a hundred, i.e. one hundred bead to the right, the ten tens to the left again.

Finally, the missing tens are pushed to the right edge (another

Pearl) and two red hundred pearls)

3 x 4 = 12 (can be pushed to the right: 2 red hundreds, 1 green thousand)

The result can now be read from bottom to top: 1512