Tuesday, March 26, 2013

Decimal Place Value Strips

This week my class is working on pedagogy for teaching fractions and decimals. Tonight we are going to explore decimal place value strips.

In this file you'll find three variations of the strip sets so that you can use them to differentiate. The first form includes the words for place value on the strip (ones, tenths, hundredths, and thousandths). The second form includes numbers to show the value of the digit in a particular place. The third form includes no additional information. Each set includes whole and decimal numbers from ones through thousandths and comes in both color and black and white versions.

Here's a peak at the file.
These strips were designed for use in activities that meet the following Common Core Standards for Math:
4.NF.7. Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual model.

5.NBT.3. Read, write, and compare decimals to thousandths.
  • a. Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000). 
  • b. Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons. 
5.NBT.4. Use place value understanding to round decimals to any place.

I hope you get a chance to use these in your home or classroom. Please let me know if you try them and how they work! 

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