Addition With Number Rods

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Addition With Number Rods
Math - Memory Work
Addition with Number Rods 5.JPG
LevelPrimary
Age4 - 5
PrerequisitesNumber Rods With Numerals
MaterialsNumber Rods
numeral cards 1-10
2 "+" signs
2 "=" signs

This activity introduces the child to simple addition facts.

Presentation

  1. Bring the material to the mat. Grade the rods.
    Addition with Number Rods 1.JPG
  2. 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.
    Addition with Number Rods 2.JPG
  3. Place the 3 rod below to compare. "This rod and this rod put together are the same as this rod."
    Addition with Number Rods 3.JPG
  4. "Here's another way we can say it:" place the symbols as shown.
    Addition with Number Rods 4.JPG
  5. Count the rods and place the appropriate number cards. "One plus two is the same as three."
    Addition with Number Rods 5.JPG
  6. Scoot the number cards down and add the second set of symbols. "One plus two equals three."
    Addition with Number Rods 6.JPG

Points of Interest

Aims

Direct Aim:

  1. To show how we get larger numbers from smaller ones.

Indirect Aim:

  1. To show the limits of base 10.
  2. 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
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
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
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)
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)
Store Price
Affordable Montessori $34.00
IFIT $30.00
Pink Montessori $19.50