P – EC – OE16

About how many counters can you pick up in five handfuls?

P – EC – OE17

About how many counters can you pick up in ten handfuls?

P – EC – OE11

What would you use as a referent if you had to estimate the number of students in a classroom you are visiting?

P – EC – OE12

What would you use as a referent if you had to estimate the number of students on a bus?

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