Temperature Changes and Depth Calculations

The video tutorial covers solving integer addition problems using a number line, analyzing temperature changes in two cities, calculating the depth of a diver, critiquing reasoning in a submarine depth problem, and comparing costs of guitar lessons. The teacher provides step-by-step explanations and encourages students to solve similar problems independently.

What is the result of adding 5 and negative 3 using a number line?

• 2 in the positive direction

• 3 in the negative direction

• 2 in the negative direction

• 3 in the positive direction

In City A, what is the net temperature change from 8 a.m. to 10 a.m.?

• 8 degrees decrease

• 1 degree increase

• 1 degree decrease

• 9 degrees increase

What expression represents the temperature change in City B from 8 a.m. to 10 a.m.?

• 5 + 4

• 5 - 4

• -5 - 4

• -5 + 4

Which city experienced a greater temperature change from 8 a.m. to 10 a.m.?

• City A

• City B

• Both cities had the same change

• Neither city had a change

What is the diver's depth after diving 81 feet and then 14 more feet?

• -81 feet

• -67 feet

• -14 feet

• -95 feet

What mistake did Adam make in calculating the submarine's new depth?

• He calculated the depth as positive

• He used the wrong initial depth

• He added 45 instead of subtracting it

• He subtracted 45 instead of adding it

What is the correct new depth of the submarine after increasing its depth by 45 meters?

• -155 meters

• -245 meters

• -45 meters

• -200 meters

How much does Mrs. Jones charge for three guitar lessons?

• $240

• $300

• $80

• $180

How much does Mr. Belts charge for four guitar lessons?

• $300

• $240

• $248

• $180

Which teacher offers a cheaper total cost for the guitar lessons?

• Mrs. Jones

• Mr. Belts

• Both cost the same

• Neither offers lessons