Elapsed Time Calculation Challenge

The video tutorial explains the concept of elapsed time, demonstrating how to calculate it using start and end times. Two examples are provided: one involving a park visit and another a reading session. The tutorial emphasizes using a clock to visualize and calculate elapsed time, focusing on counting minutes and understanding the clock's movement.

What is the definition of elapsed time?

• Time from start to end of an event

• Time in a day

• Time for a clock to strike 12

• Time spent sleeping

Tags

CCSS.3.MD.A.1

What do you need to calculate elapsed time?

• A stopwatch

• Start and end times

• A calendar

• A friend's help

Tags

CCSS.3.MD.A.1

How did the teacher suggest marking the clock for clarity?

• Starting with corners then filling in

• Using different colors for each number

• Placing numbers in descending order

• Randomly placing numbers

Tags

CCSS.RI.2.5

CCSS.RI.3.3

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.5.3

How long were Isabelle and her friends at the park?

• 30 minutes

• 45 minutes

• 1 hour

• 2 hours

Tags

CCSS.3.MD.A.1

What method is used to count the elapsed time on the clock?

• From the highest to the lowest number

• Clockwise

• Counterclockwise

• In random order

Tags

CCSS.1.MD.B.3

Why did the teacher decide to change the end time in the book reading example?

• To extend the reading time

• To make the example more complex

• To simplify the calculation

• It was a mistake

Tags

CCSS.RI.1.3

CCSS.RI.2.3

CCSS.RI.3.3

CCSS.RI.5.3

CCSS.RI.5.5

What is the correct way to mark minutes on the clock when they don’t land on a major number?

• Estimate the closest number

• Mark the exact spot between numbers

• Ignore the minutes

• Only use major numbers

Tags

CCSS.3.MD.A.1

How many minutes did John spend reading the book?

• 60 minutes

• 30 minutes

• 45 minutes

• 44 minutes

What is the first step in calculating elapsed time?

• Count the minutes

• Ask for help

• Identify start and end times

• Draw a clock

Tags

CCSS.3.MD.A.1

How do you handle counting elapsed time when it spans across the top of the clock?

• Restart counting from one

• Count by fives

• Count in tens

• Skip the top of the clock

Tags

CCSS.3.MD.A.1