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## How to Tell Time

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**How to Tell Time**Ms. Leonard’s Class October 27, 2009**What a Clock Looks Like**• Clocks have two hands, a big hand and a small hand. • The big hand tells time in minutes. • The small hand tells time in hours.**What Do the Numerals Mean?**• A clock has twelve numerals, 1-12. • Each one represents five minutes. • Twelve numerals x 5 minutes means that there are 60 minutes in one hour.**Past or to the Hour?**• If the minute hand is in the red region, it means that time is being told past the hour (the hour just started). • If the minute hand is in the green region, time is being told to the hour (a new hour is approaching).**How the Clock Works**• The clock can be split into quarters and halves. • If the big hand points at the 6, 30 minutes has passed (half of 60). • If the big hand points at the 3, 15 minutes has passed (half of 30). 30 minutes has passed 15 minutes has passed**How the Clock Works Continued**• If the big hand is at the 9, 45 minutes has passed (30 minutes + 15 more since it’s another quarter hour).**Youtube Example Clip**This youtube clip walks you through how to tell time and has many examples. Check it out!**Lets Look at Some Examples…**Example 1: The big hand is pointing at the 1, meaning 5 minutes has passed. The little hand is on the 12 meaning the hour is 12 o’clock. The time is then 12:05.**Examples Cont.**Example 2: The big hand is pointing at the 12 meaning it is on the hour, 0 minutes have passed. The little hand is on the 2, meaning the hour 2 o’clock. The time is 2:00.**Examples Cont.**Example 3: The big hand is just about on the 1 meaning a little under 5 minutes has passed. The small hand is on the 5 meaning the hour is 5 o’clock. The time is roughly 5:04.**Examples Cont.**Example 4: The big hand is on the 5 meaning that 25 minutes has passed (count by 5’s until you reach numeral 5). The little hand is on 10 meaning the hour is 10 o’clock. The time is 10:25.**Final Example**Example 5: The big hand is just a little past the 5 meaning a little more than 25 minutes has passed (count by 5’s until you reach numeral 5). The little hand is on the 9 meaning the hour is 9 o’clock. The time is roughly 9:26.**Review**• The big hand tells time in minutes. • The small hand tells time in hours. • A clock has twelve numerals, 1-12. • Each one represents five minutes. • Twelve numerals x 5 minutes means that there are 60 minutes in one hour. • If the big hand points at the 6, 30 minutes has passed (half of 60). • If the big hand points at the 3, 15 minutes has passed (half of 30).**Web Sources**• Pictures from: http://www.elmhdy.com/cliparts/clipart/time/clock_clip_art.jpg • "Tell the Time in English." YouTube. Web. 14 Oct 2009. <http://www.youtube.com/watch?v=3icBxO6Wjz0>.**Grade Level Content Expectations**• "Mathematics Grade Level Content Expectations." March 2006. Michigan Department of Education, Web. 14 Oct 2009. <http://www.michigan.gov/documents/MathGLCE_140486_7.pdf>. • M.UN.01.03 Tell time on a twelve-hour clock face to the hour and half-hour. • M.UN.02.05 Using both A.M. and P.M., tell and write time from the clock face in 5 minute intervals and from digital clocks to the minute; include reading time: 9:15 as nine-fifteen and 9:50 as nine-fifty. Interpret time both as minutes after the hour and minutes before the next hour, e.g., 8:50 as eight-fifty and ten to nine. Show times by drawing hands on clock face.