Many children enter kindergarten being able to rote count. What comes next?
Keeping it Simple
According to Jordan, Kaplan, Nabors Ola´h, and Locuniak (2006) there are 5 key elements of Number sense within a kindergarten age group.
Counting
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Rote counting
One to one correspondence
Understanding of cardinality and stable order
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Number knowledge
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Discriminating quantities – subitizing
Making comparisons
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Number transformation
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Transforming by adding and subtracting
Calculating verbally and nonverbally
Calculating with and without physical or verbal references
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Estimation
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Estimating
Using reference points
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Number patterns
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Copying number patterns
Extending number patterns
Discerning numerical relationships
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Typically by the time a child is six years old they have developed an internal number line. (Siegler & Booth, 2004) Having a visual number line helps children learn that numbers later in the counting sequence have a larger quantity and that each number has a distinct quantity. Physical number lines that include quantities gives students a visual reference point for adding on and subtracting. Kids love dice, associate dice with fun games, and familiarity with dice greatly contributes to acquiring subitizing skills.
A few years ago I made a 1-14 dice number line that is included with my alphabet linking charts. Recently a customer contacted me saying that she felt the dice number line was extremely helpful, and would like a 1-20 desktop number line. This week I put together a set of black and white and colored desktop number lines both from 1-14 and 1-20. Let me know if these are helpful in your classroom!
Take a look at these other great teaching ideas from Teachers Talk!
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Wow! You make me wish I taught math! Thanks for sharing.
I love this idea. I have so many students who could benefit. Thanks for sharing.