Give One, Take a Lot More: Using Benchmark Fractions or Estimating Them

Create one example of using benchmarks or estimation and fractions (see Example 8-9 on page 186 in the Burris text) that you could use in your classroom. Don’t have your book handy? No problem! Here’s Example 8-9:

Class, we have been studying different countries. Look at the flags that we have hanging at the front of the room. Which flag is the flag of Italy? About how much of the flag of Italy is green? Which flag is Poland’s? How much of the Poland’s flag is red? How about the U.S. flag? About how much of our flag is blue?

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View “Understanding Fractions” and “Just a Fraction” to see how British teachers are using plastic cups to model (addition and subtraction of) the benchmark fractions 1/2 and 1/4 to their students.