Montessori AMI Primary Guide
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Numbers through Ten
  Number Rods
  Sandpaper Numbers
  Number Rods and Cards
  Spindle Boxes
  Concept of Zero
  Cards and Counters
  Memory Game
Decimal System
  Introduction to quantity
  Formation of Numbers
  Stamp Game
  Dot Game
  Word Problems
Linear & Skip Counting
  Teens: Quanity
  Teens: Symbol
  Tens: Association
  Linear Counting
  Skip Counting
  Number Roll
Tables of Arithmetic
  Addition Snake Game
  Strip Board - exercises
  Addition Strip Board
  Addition Charts
  Substraction Snake Game
  Substraction Strip Board
  Substraction Charts
  Multiplication Bead
  Multiplication Board
  Multiplication Charts
  Unit Division Board
  Division Charts
Passage to Abstraction
  Small Bead Frame
  Wooden Hierarchical Material
  Large Bead Frame
  Racks and Tubes

Word Problems


- Cards with word problems written on them:
The red cards are for addition.
The green cards are for subtraction.
The yellow cards are for multiplication.
The blue cards are for division.
- The white set of cards have written on them word problems from all four groups.

600 people got on a train at the station. At the first stop 365 people got on. At the next stop 412 people boarded the train. How many people were on the train at the end of the trip?

A farmer had 956 sheep. He sheared 428 of them. How many more does he need to shear?

A fisherman caught 7 baskets of fish. There were 325 pounds of fish in each basket. How many pounds of fish were all together?

325 children went on a school trip to the farm. There were five cars to take them there. How many children traveled in each coach?

For Jenny’s birthday party, her mommy ordered 20 red balloons, 16 yellow balloons, and 23 green balloons. How many balloons did Jenny have at her party.

Molly had saved €963 in the bank, Susan had saved €605 in the post office. How much more money had Molly than Susan?

John bought 10 packets of bubblegum for his holidays. There were 7 sticks of bubblegum in each packet. How many sticks of bubblegum were there altogether?

It takes 7 apples to make an apple pie. How many pies can be made from 147 apples?


  1. This is to be begun with children how have been introduced to the Golden Beads and who are fully able to read.
  2. Introduce one set of cards at a time, beginning with addition. The child can then use the materials he knows to find the answer.
  3. As the child is ready, you can introduce each of the operations in turn.
  4. When the child is able to work with the coded cards well, introduce the white cards.


To connect the arithmetic problems to real life and illustrate practical problems.

Control of Error
The child’s own knowledge of the process of arithmetic.

5 years onwards

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