Difference between revisions of "Addition with small number rods"

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(New page: ==Addition with small number rods== === Age === 3-6 <br /> === Materials === <ol><li>Two sets of Small Number Rods.</li><li>Plain squared paper and pencil.</li><li>Addition Sign Cards (opt...)
 
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==Addition with small number rods==
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=== Age ===
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=== Age ===
 
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3-6
 
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<br />
 
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=== Materials ===
 
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<ol><li>Two sets of Small Number Rods.</li><li>Plain squared paper and pencil.</li><li>Addition Sign Cards (optional).</li></ol>
 
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<br />
 
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=== Preparation ===
 
  
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<br />
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3-6 <br>  
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=== Presentation ===
 
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<strong>Presentation 1:<br /></strong><ul><li>The Directress invites the child to build two stairs with the number rods.</li><li>The rods on the left act as control of error and the rods on the right are used for addition purpose. So, the Directress takes a rod from the left, counts them, for e.g. a rod 7.</li><li>Then she invites the child to choose a rod that is shorter than 7. The Directress directs the child to choose from the right set of rods. The child chooses a rod, for e.g. a 5 rod.</li><li>Then the Directress places the 5 rod just below the 7 rod, and then says, &quot;how many more to make 7?&quot; The child then counts out the number rod to make 7 based on the 7 rod which acts as control of error and would probably answer &quot;2&quot;. Then the child takes a 2 rod and places it besides the 5 rod below the 7 rod and would find them at equal length.</li><li>Directress then explains, &quot;5 plus 2 makes 7&quot; and then shows the child how to write &quot;5 2=7&quot; on plain square paper.</li><li>The Directress can continue the presentation by showing a few more examples.</li></ul>
 
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<br />
 
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=== Control Of Error ===
 
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The Rods themselves act as a Control of Error because the quantities are fixed.
 
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<br />
 
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=== Points Of Interest ===
 
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As a preparation to learn Number Bonds, when doing the above exercise, we could always exchange places between the 2 addition rods and reinforce that, for e.g. 5 2=7 and 2 5=7 as well.<br /><br />Exercises should not be called 'sums' as in correct mathematical language the 'sum' is the answer to an addition question. We use 'exercise or 'example' instead.
 
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<br />
 
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=== Purpose ===
 
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<ul><li>Introduce the child to addition with numbers 1 to 10.</li><li>Show the child how to record additions up to 10.</li><li>Provide controlled exercises for teaching number bonds.</li></ul>
 
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<br />
 
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=== Variation ===
 
  
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<br />
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=== Materials  ===
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=== Handouts/Attachment ===
 
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<br />
 
  
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#Two sets of Small Number Rods.
 +
#Plain squared paper and pencil.
 +
#Addition Sign Cards (optional).
 +
 +
<br>
 +
 +
=== Preparation  ===
 +
 +
<br>
 +
 +
=== Presentation  ===
 +
 +
'''Presentation 1:<br>'''
 +
 +
*The Directress invites the child to build two stairs with the number rods.
 +
*The rods on the left act as control of error and the rods on the right are used for addition purpose. So, the Directress takes a rod from the left, counts them, for e.g. a rod 7.
 +
*Then she invites the child to choose a rod that is shorter than 7. The Directress directs the child to choose from the right set of rods. The child chooses a rod, for e.g. a 5 rod.
 +
*Then the Directress places the 5 rod just below the 7 rod, and then says, "how many more to make 7?" The child then counts out the number rod to make 7 based on the 7 rod which acts as control of error and would probably answer "2". Then the child takes a 2 rod and places it besides the 5 rod below the 7 rod and would find them at equal length.
 +
*Directress then explains, "5 plus 2 makes 7" and then shows the child how to write "5 2=7" on plain square paper.
 +
*The Directress can continue the presentation by showing a few more examples.
 +
 +
<br>
 +
 +
=== Control Of Error  ===
 +
 +
The Rods themselves act as a Control of Error because the quantities are fixed. <br>
 +
 +
=== Points Of Interest  ===
 +
 +
As a preparation to learn Number Bonds, when doing the above exercise, we could always exchange places between the 2 addition rods and reinforce that, for e.g. 5 2=7 and 2 5=7 as well.<br><br>Exercises should not be called 'sums' as in correct mathematical language the 'sum' is the answer to an addition question. We use 'exercise or 'example' instead. <br>
 +
 +
=== Purpose  ===
 +
 +
*Introduce the child to addition with numbers 1 to 10.
 +
*Show the child how to record additions up to 10.
 +
*Provide controlled exercises for teaching number bonds.
 +
 +
<br>
 +
 +
=== Variation  ===
 +
 +
<br>
 +
 +
=== Handouts/Attachment  ===
 +
 +
<br>
  
 
[[Category:Mathematics]]
 
[[Category:Mathematics]]

Revision as of 23:42, 8 March 2009

Age

3-6

Materials

  1. Two sets of Small Number Rods.
  2. Plain squared paper and pencil.
  3. Addition Sign Cards (optional).


Preparation


Presentation

Presentation 1:

  • The Directress invites the child to build two stairs with the number rods.
  • The rods on the left act as control of error and the rods on the right are used for addition purpose. So, the Directress takes a rod from the left, counts them, for e.g. a rod 7.
  • Then she invites the child to choose a rod that is shorter than 7. The Directress directs the child to choose from the right set of rods. The child chooses a rod, for e.g. a 5 rod.
  • Then the Directress places the 5 rod just below the 7 rod, and then says, "how many more to make 7?" The child then counts out the number rod to make 7 based on the 7 rod which acts as control of error and would probably answer "2". Then the child takes a 2 rod and places it besides the 5 rod below the 7 rod and would find them at equal length.
  • Directress then explains, "5 plus 2 makes 7" and then shows the child how to write "5 2=7" on plain square paper.
  • The Directress can continue the presentation by showing a few more examples.


Control Of Error

The Rods themselves act as a Control of Error because the quantities are fixed.

Points Of Interest

As a preparation to learn Number Bonds, when doing the above exercise, we could always exchange places between the 2 addition rods and reinforce that, for e.g. 5 2=7 and 2 5=7 as well.

Exercises should not be called 'sums' as in correct mathematical language the 'sum' is the answer to an addition question. We use 'exercise or 'example' instead.

Purpose

  • Introduce the child to addition with numbers 1 to 10.
  • Show the child how to record additions up to 10.
  • Provide controlled exercises for teaching number bonds.


Variation


Handouts/Attachment


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