Addition With Number Rods
From Montessori Album
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Addition With Number Rods | |
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Math - Memory Work | |
Level | Primary |
Age | 4 - 5 |
Prerequisites | Number Rods With Numerals |
Materials | Number Rods numeral cards 1-10 2 "+" signs 2 "=" signs |
This activity introduces the child to simple addition facts.
Presentation
- Bring the material to the mat. Grade the rods.
- Place the 1 rod and the 2 rod end to end. Ask the child to find one rod that is as long as the two put together.
- Place the 3 rod below to compare. "This rod and this rod put together are the same as this rod."
- "Here's another way we can say it:" place the symbols as shown.
- Count the rods and place the appropriate number cards. "One plus two is the same as three."
- Scoot the number cards down and add the second set of symbols. "One plus two equals three."
Points of Interest
Aims
Direct Aim:
- To show how we get larger numbers from smaller ones.
Indirect Aim:
- To show the limits of base 10.
- Inquiry into the concept of one half.
Control of Error
- The ten rod.
- The visual shape of the layout.
Variations and Extensions
Material
Where to Buy
Prices and links checked: 07 October 2020
Number Rods | |
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Store | Price |
Absorbent Montessori | $55.00 |
Adena | $57.93 |
Affordable Montessori | $65.00 |
Alison's with number cards |
$47.25 |
Bruins | $170.00 |
E & O | $89.10 |
Hello Wood red and blue |
$205.00 |
Hello Wood red and unpainted wood |
$189.00 |
IFIT | $75.00 |
Kid Advance | $28.99 |
Leader Joy | $77.95 |
Materials Co. of Boston | $125.00 |
Montessori Concepts | $78.00 |
Montessori Outlet | $63.95 |
Nienhuis | $149.15 |
Thinkamajigs | $64.95 |
Stand | |
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Store | Price |
Absorbent Montessori | $32.00 |
Adena | $28.93 |
Affordable Montessori | $39.00 |
Alison's | $30.87 |
Alison's | $47.50 |
Best Montessori Toys | $57.04 |
Bruins | $55.00 |
Hello Wood | $55.00 |
IFIT | $30.00 |
Kid Advance | $28.99 |
Leader Joy | $33.95 |
Material Co. of Boston | $49.00 |
Montessori Concepts | $34.00 |
Montessori Outlet | $35.95 |
Pink Montessori | $26.90 |
Thinkamajigs | $37.95 |
Number Cards | |
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Store | Price |
Absorbent Montessori | $9.00 |
Adena | $11.94 |
Affordable Montessori | $12.00 |
Alison's | $10.00 |
Alison's | $14.25 |
Alison's | $12.75 |
Best Montessori Toys | $33.50 |
Bruins | $20.00 |
E & O | $19.80 |
Hello Wood | $33.00 |
IFIT | $11.00 |
Kid Advance | $13.99 |
Leader Joy | $18.95 |
Materials Co. of Boston | $10.00 |
Montessori Concepts | $19.00 |
Montessori Outlet | $5.95 |
Montessori Outlet | $5.95 |
Montessori Outlet box |
$5.95 |
Nienhuis | $12.20 |
Nienhuis box |
$16.80 |
Pink Montessori | $12.50 |
Thinkamajigs | $11.95 |
Table-top Number Rods (2 sets of little rods) | |
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Store | Price |
Absorbent Montessori | $22.00 |
Adena | $30.93 |
Affordable Montessori | $27.00 |
Alison's | $71.25 |
Alison's | $29.40 |
Best Montessori Toys | $39.00 |
Bruins | $100.00 |
E & O | $44.10 |
IFIT | $28.00 |
Kid Advance | $36.99 |
Leader Joy | $34.95 |
Materials Co. of Boston | $85.00 |
Montessori Concepts | $35.00 |
Montessori Outlet | $36.95 |
Nienhuis | $121.20 |
Pink Montessori | $24.90 |
Thinkamajigs | $26.95 |
Half-size Number Rods (5cm-50cm) | |
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Store | Price |
Affordable Montessori | $34.00 |
IFIT | $30.00 |
Pink Montessori | $19.50 |