Lesson 7.27.2 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can place rational numbers, including fractions and decimals, on a number line — one step at a time, with support.
Remember7.2 Small Group · Group 1
Every rational number has one exact spot on the number line, between two integers, with negative numbers to the left of 0. To place a rational number, find the two integers it is between. Then split that space into equal parts.
Words: Rational number (Número racional)Fraction (Fracción)Decimal (Decimal)Number line (Recta numérica)Equivalent (Equivalente)
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1Complete each step, then write the final answer.
A point is halfway between −4 and −3. What rational number is it?
Show your workHint Halfway between 3 and 4 is 3.5. This point is left of 0, so it is negative.
Final answer: -
2Complete each step, then write the final answer.
A point is halfway between −6 and −5. What number is it?
Show your workHint Halfway between 5 and 6 is 5.5. This point is left of 0.
Final answer: -
3Complete each step, then write the final answer.
The water in a pool is 1 1/4 feet under the top edge. The top edge is 0. Write the water level as a decimal.
Show your workHint Under the edge means less than 0. 1/4 = 0.25.
Final answer: -
4Complete each step, then write the final answer.
The space from 0 to −1 is split into 8 equal parts. Point B is 3 parts from 0. What fraction is point B?
Show your workHint Each part is 1/8. The point is left of 0.
Final answer:
Explain your thinkingHow do you find the two integers a negative decimal is between? Use −1.5 or −6.5 to explain.
Sentence starter −6.5 is between ___ and ___. · I put the dot ___ because ___.