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This lesson makes rounding simple
4, 3, 2
Title – Rounding Made Simple
By – Laurie Johns
Primary Subject – Math
Grade Level – 2-4
Place Value Review:
- When I teach rounding, I introduce it by giving kids larger sized graph paper. I also have an overhead made of the same graph paper. On that paper, I write a number going to thousands.
- Above each digit in each block, I write an O for ones, T for tens, H for hundreds, TH for thousands.
- We take a moment to review place value – finding the number – what spot is it in – then reverse – what number is in the hundreds spot? Etc.
- From there we go on and I will have them write the same number in 4 different spots, each time writing the “cues” above them.
- Then I tell them we will be rounding numbers.
- I explain that in order to do this, we need to follow certain steps.
- 1. Find place value rounding to and underline that number
- 2. Circle the number behind it.
- 3. Ask yourself is the circled one 5 or bigger.
- 4. If yes, the underlined number goes up by 1.
- 5. If no, the underlined number stays the same.
- 6. Then from the circled spot on, all become 0’s.
- This is rounding.
- Have kids do more with you rounding to different place values. Once they get used to it and seem to understand, let them do a few alone. Gradually fade out the use of the graph paper.
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