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# Do adults know how to evaluate numeric expressions correctly? - PowerPoint PPT Presentation

In a random survey of 10 adults, who may or may not have jobs, I asked them to evaluate ten numeric expressions. Do adults know how to evaluate numeric expressions correctly?. Number correct. The problems ranged in difficulty from easy (one operation) to hard

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Presentation Transcript

I asked them to evaluate ten numeric expressions.

### Do adults know how to evaluate numeric expressions correctly?

Number correct

The problems ranged in difficulty from easy (one operation) to hard

(six operations and one exponent). They were allowed to use a calculator.

Three of the people who scored six or lower, including the one who scored zero,

do not have jobs.

All of the people who scored 8 and higher are teachers.

Circle one: Are you currently employed? Yes No

Evaluating Expressions: S Person #___urvey dataCorrect/Incorrect responses by question

Key:

1 indicates correct response

0 indicates incorrect response

Do adults know the Person #___ relationship between

the subsets of Real Numbers?

Instructions: Complete the Person #___Real NumberVenn Diagram below

by inserting the words in the word bank inside the

most appropriate ovals

#s

Word Bank: Natural #s Integers Whole #s

Irrational #s Real Rational #s

Real Number System: Survey data Person #___Correct/Incorrect responses by question

Key:

1 indicates correct response

0 indicates incorrect response