Classifying Real Numbers Write all classifications that apply to each number. 5 is a whole number that is not a perfect square. 5 irrational, real –12.75 is a terminating decimal. –12.75 rational, real 16 2 whole, integer, rational, real = = 2 4242 16 2 I DO. WE Do. You Do
State if each number is rational, irrational, or not a real number. 21 irrational 0303 rational 0303 = 0 Exit Ticket A. B.
19 Steps for Comparing One type of problem strategy is to use a visual. Today’s visual is the number line. 19
20 Model Change the numbers to a decimal. Is the number greater than zero? What two whole numbers is the number between? Is it closer to a quarter? a half? three-quarters? 20
21 WE DO-Practice Rally Coach Partner A asks the questions and Partner B responds by answering and placing the number on the number line. Partner B asks the questions and Partner A responds by answering and placing the number on the number line. 21
22 I Do Place the following numbers on the number line. 22
23 Thinking for Tomorrow Where do you think the following numbers would fall on the number line? √15 √5 √9 23