Subtraction With the Stamp Game
From Montessori Album
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| Subtraction With the Stamp Game | |
|---|---|
| Math - Arithmetical Operations | |
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| Level | Primary |
| Age | 5+ |
| Prerequisites | Understanding of Decimal System |
| Materials | Stamp Game Box pencil green pencil blue pencil red pencil |
This activity teaches the child to do subtraction problems at a higher level of abstraction.
Presentations
Static Subtraction
- Take the material to a table. No divider line is needed for subtraction.
- Write out the problem.
- Lay out the stamps for the first number (the minuend).
- Slide down the unit stamps for the second number (the subtrahend). Record the amount of unit stamps still left at the top.
Then do the same for the tens, then the hundreds, then the thousands.
Dynamic Subtraction
- step one
- step two, etc.
Points of Interest
Control of Error
Variations and Extensions
Material
A standard stamp game set includes 81 unit stamps, 81 ten stamps, 81 hundred stamps, 18 thousand stamps, 9 unit skittles, 9 ten skittles, 9 hundred skittles, 1 thousand skittle, 9 green circles, 9 blue circles, and 9 red circles.
Make Your Own
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| Stamp Game tiles in color | Stamp Game tiles in black and white | Math Problem Paper |
Where to Buy
Prices and links checked: 23 January 2022
(Amazon/Bookshop are affiliate links, which help cover costs of running the site.)
| Introduction to the Stamp Game | |
|---|---|
| Store | Price |
| Adena | $28.92 |
| Affordable Montessori | $33.00 |
| Alison's | $38.58 |
| Bruins | $91.00 |
| E & O | $44.10 |
| IFIT | $24.00 |
| Kid Advance | $31.99 |
| Material Company of Boston | $48.00 |
| Montessori Outlet | $32.95 |
| Nienhuis | $99.10 |
| Thinkamajigs | $33.95 |
| Decimal Stamp Game Sets | |
|---|---|
| Store | Price |
| Alison's | $47.12 |
| Montessori Outlet | $29.95 |
| Nienhuis | $102.75 |
