7th Math 2.6 Classwork A

Thermometer--One Winter afternoon in Wisconsin, the temperature is 7°C. In the evening it was -9°C.

What was the total change in the temperature? Use the formula |p-q| and check your work with either number line.

(Note: to type || for absolute value, use Shift and \ which is usually under the backspace button)

"The total change in temperature was..."

CFS:

#1: Accurately substitutes values into formula |p-q|

#2: Accurately calculates distance and uses number line to check work

Distance--What is the distance between -4 and 9?

a) Use the formula |p-q|

b) Check your answer by demonstrating on the number line

CFS:

#1: Accurately substitutes values into formula |p-q|

#2: Accurately calculates distance and uses number line to check work

Calculate--What is the distance between -4 and -10?

**Using the number line is optional. You must SYW for the formula**

CFS:

#1: Accurately substitutes values into formula |p-q|

#2: Accurately calculates distance and uses number line to check work

No More Lines--Calculate the distance between -105 and 32.

CFS:

#1: Accurately substitutes values into formula |p-q|

No More Lines--Calculate the distance between -15 and -27.

CFS:

#1: Accurately substitutes values into formula |p-q|

SPICY--Try if you have time.

Elevation--A hiker starts a trail at 40 feet below sea level and reaches the top of a hill which is 170 feet above sea level. (Sea level is 0 feet)

a) What was their change in elevation (height)?

CFS:

#1: Accurately substitutes values into formula |p-q|

SPICY--Try if you have time.

Babel drew a number line and put down two points. One point is at -43 and the other is at 10.

Cabel says that the distance between the two points is -53. Do you agree or disagree? Explain.

"I (agree / disagree) with Cabel because..."

CFS:

#1: Accurately substitutes values into formula |p-q|

Science Experiment--Ms. Paul needs some temperature data for a science experiment. She asks Brayan to measure the temperature in the morning and in the afternoon.

The temperature dropped from 7℉ to -11℉.

Brayan says that the temperature change was 18℉, while Diego says that the temperature changed by 4℉.

Who is correct? Explain using calculations or visuals as evidence.

"(Brayan / Diego) is correct because..."

CFS:

#1: Accurately substitutes values into formula |p-q|

#2: Accurately calculates distance and uses number line to check work