Saturday, August 11, 2012

Rocking Out with the Hundreds Chart

As I was going through the Common Core standards, I was surprised that the hundreds chart isn't referenced more.   Clearly, students need work on the hundreds chart to help build their number sense and place value understanding.  I assumed that the CCSS would have a lot of recommendations for using the hundreds chart, but it seems to be lacking.  However, you can use the hundreds chart to build skills in many of the standards, including: 
  • K.CC.1. Count to 100 by ones and by tens.
  • K.CC.2. Count forward beginning from a given number within the known sequence (instead of having to begin at 1).
  • K.CC.3. Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).
  • 1.NBT.1. Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
  • 1.NBT.5. Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
  • 1.NBT.6. Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

While working with my teachers on designing their math centers, we talked about having one center strictly working with the hundreds chart.  The activities might include simple addition or subtraction problems where they use the hundreds chart to help them.  Or, it might include activities where students are adding and subtracting multiples of tens, figuring out missing numbers, or completing number lines.

I created the Rocking Out with the Hundreds Chart unit to include many of those skills.  The unit is tiered. That way you can use it throughout the year.  Or, you could use it to differentiate for your students based on their readiness for it.  There are three different sets of activities included.
Number lines 0-20, 0-50, or 0-120.
9-grid number puzzles for 0-30 or 0-120.  There are also 6-t number puzzles.

Finally, there are sets of cards for students to solve.  I also included a recording sheet.  The first set, again, is for numbers 0-20.  The second practices addition up to 120.  The third also combines subtraction.

You can click on any of the pictures to come over to my blog to see a bit more about the unit.  Or, you can click here to go to my TpT store to download the preview and check it out!

How do you use the hundreds chart to help build number sense and place value?  How do you see it fitting in with the Common Core standards?




1 comments:

David Burns said...

When I noticed the CCSM included counting to 120 (not 100) in 1st grade I came up with this http://www.helpingwithmath.com/printables/tables_charts/1nbt1-numbers-chart01.htm hundreds chart - shameless-self-promotion, I admit. It's quite flexible; you can have different start numbers, intervals, and number of rows plus you can show or hide any of the numbers....well at least I like it.

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