Exploring Number Lines for Elapsed Time

What is the starting time shown on the first clock?

• 12:15

• 7:25

• 2:30

• 9:10

Tags

CCSS.2.MD.C.7

What method is introduced for calculating time differences?

• Counting on fingers

• Estimation

• Using a stopwatch

• Using a number line

Tags

CCSS.3.MD.A.1

What is the purpose of using a number line in time calculations?

• To practice counting

• To improve drawing skills

• To visualize the time difference

• To make it more complicated

Tags

CCSS.3.MD.A.1

How many minutes are between the half-hour mark and the next hour?

• 45 minutes

• 15 minutes

• 60 minutes

• 30 minutes

What is the first step in using a number line to calculate time?

• Marking the current time

• Adding up minutes

• Drawing arrows

• Labeling each hour

Tags

CCSS.1.MD.B.3

How much time does Captain David have before his flight?

• 2 hours and 10 minutes

• 2 hours

• 1 hour and 40 minutes

• 1 hour and 20 minutes

Tags

CCSS.3.MD.A.1

What time does Captain David's flight leave?

• 2:30 p.m.

• 3:30 p.m.

• 5:00 p.m.

• 4:10 p.m.

Tags

CCSS.3.MD.A.1

At what time did James leave for Grace's house?

• 4:15 p.m.

• 4:00 p.m.

• 5:50 p.m.

• 5:05 p.m.

Tags

CCSS.3.MD.A.1

How long did it take James to get to Grace's house?

• 40 minutes

• 45 minutes

• 50 minutes

• 55 minutes

Tags

CCSS.3.MD.A.1

Why is practice important when learning to use a number line for time?

• It helps memorize the number line

• It is not necessary

• It makes time go faster

• It improves accuracy and speed

Tags

CCSS.3.MD.A.1