Math Standards Grade 2 MEASUREMENT MEASUREMENT M2M2. Students will tell time to the nearest five minutes and know relationships of time such as the number of seconds in a minute, minutes in an hour and hours in a day. M2M2. Students will tell time to the nearest five minutes and know relationships of time such as the number of seconds in a minute, minutes in an hour and hours in a day.

THERE WERE ONCE NO CLOCKS??? Did you know…..

Keeping track of time is easy when you have a clock. Did you know the electric clock wasn’t even invented until 1840? Did you know the electric clock wasn’t even invented until 1840? For thousands of years before that, people used devices such as an hourglass filled with sand or a burning candle to tell time. For thousands of years before that, people used devices such as an hourglass filled with sand or a burning candle to tell time.

Let’s Do Some Math!! If it takes one hour for the sand in your hourglass to pass from one side to the next how many minutes have passed? How many seconds? If it takes one hour for the sand in your hourglass to pass from one side to the next how many minutes have passed? How many seconds? And how many times will you have to flip the hourglass to equal one day? And how many times will you have to flip the hourglass to equal one day?

Here are some clues… 60 Seconds = 1 minute 60 Seconds = 1 minute 60 minutes = 1 hour 60 minutes = 1 hour 24 Hours= 1 day 24 Hours= 1 day

Write each problem in your scrapbook. Write each problem in your scrapbook. Write down your clues. Write down your clues. Show your work for each problem Show your work for each problem Talk with your table about how you Talk with your table about how you developed your answer developed your answer