Lesson 7.17.1 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can use integers to represent quantities in everyday life, explain what 0 means in each situation, and name the opposite of an integer on the number line — one step at a time, with support.
Remember7.1 Small Group · Group 1
Negative integers show amounts less than 0, and every integer has an opposite the same distance from 0 on the other side. Integers can show amounts less than 0. Opposites are the same distance from 0, on different sides.
Words: Integer (Número entero)Opposite (Opuesto)Negative number (Número negativo)Positive number (Número positivo)Number line (Recta numérica)
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1Complete each step, then write the final answer.
A diver swims 12 meters under the surface of the water. The surface is 0. Write the diver's position as an integer.
Show your workHint Under the surface means less than 0. Use a − sign.
Final answer: -
2Complete each step, then write the final answer.
What is the opposite of 18?
Show your workHint 18 is right of 0. Its opposite is the same distance on the left.
Final answer: -
3Complete each step, then write the final answer.
A store's sales went down by $45 this week. Zero means no change. Write the change in sales as an integer.
Show your workHint Went down means less than no change. Use a − sign.
Final answer: -
4Complete each step, then write the final answer.
Point A is at −8 on a number line. Point B is the opposite of point A. How many units apart are A and B?
Show your workHint Find point B first. Then count from A to 0 and from 0 to B.
Final answer:
Explain your thinkingWhat does 0 mean for the submarine? What does 0 mean for Sam's money? How do you decide if a number is negative?
Sentence starter For the submarine, 0 means ___. · A number is negative when ___.