TIME-TIMELINE INFO

Open Ended

Why is understanding time and how we measure it important in our daily lives?

Open Ended

What are some tools or methods people have used throughout history to measure time?

Open Ended

Explain why our calendar is called the Gregorian calendar and what it is based on.

Multiple Choice

What does B.C.E. stand for?

• Before Common Era

• Before Christ

• Before Calendar Era

• Before Current Era

Multiple Choice

Which of the following are reasons why there are 24 hours in a day and approximately 365 days in a year?

• The Earth's rotation and revolution around the sun

• The phases of the moon

• The invention of clocks

• The number of months in a year

Open Ended

Compare the length of a day on Earth with that on Jupiter and Venus. What does this tell you about the rotation of these planets?

Multiple Choice

What is the main reason there are 24 hours in a day on Earth?

• Because of Earth's rotation on its axis

• Because of Earth's revolution around the Sun

• Because of the Moon's orbit around Earth

• Because of Earth's distance from the Sun

Multiple Select

Which of the following statements are true about Earth's rotation and revolution?

• Earth's rotation causes day and night.

• Earth's revolution causes the seasons.

• Earth's revolution takes about 24 hours.

• Earth's rotation takes about 365 days.

Open Ended

Explain the difference between B.C., A.D., and B.C.E. as used in the Gregorian calendar.

Open Ended

What is the significance of there being no year "zero" in the historical timeline?

Open Ended

Why would B.C. and A.D. be considered "insulting" to some people?

Multiple Choice

What does the abbreviation 'c.' before a year stand for?

• Approximately

• Century

• Current

• Circa

Multiple Choice

Which of the following is the correct grouping of years for a millennium?

• 1000 years

• 100 years

• 10 years

• 500 years

Open Ended

Explain the difference between a decade, a century, and a millennium. Provide examples for each.

Multiple Choice

Which of the following is NOT a way to measure time?

• Hourglass

• Thermometer

• Clock

• Calendar

Open Ended

What is one new thing you learned about time or how we measure it during this lesson?

Open Ended

Why are there approximately 365 days in a year?