Subtraction With Strip Board
From Montessori Album
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Subtraction With Strip Board | |
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Math - Memory Work | |
Level | Primary |
Age | 5+ |
This activity gives the child practice figuring out and memorizing subtraction facts.
Contents
Presentations
Presentation One
- Take the material to a mat or table. Lay out as shown.
- The first page should have just one problem: 18-9=
- The next page should have two problems: 17-9= and 17-8=
- Take the 9 strip and cover up the numbers starting from the end. The last visible number is the answer.
- Then take the 8 strip and cover up the numbers starting from the end. The last visible number is the answer.
- next step
Presentation Two
Points of Interest
Control of Error
Variations and Extensions
Material
Where to Buy
Thinkamajigs $28.95
Thinkamajigs $116.95 (AMI)
merocomontessori $15.5 (Hundred Board)
Hello Wood $59.00 (variation on the traditional material)
Visit www.kidkenmontessori.com