The change of tides can happen during the day or during the night.Question Why do you think it is a good idea to have the times written in 24 hour time ?Answer Using 24 hour time is a good way to show the tide times because …. The times for high tides and low tides change everyday.Lots of people plan to go fishing at the best times – the best times are at the change of the tide. Tide times Think about how the tides go in and out all day every day, never stopping. Where do you see 24 hr time ?Tide times in the newspaper.24 Hour time - Activity 112 Discuss: Why is that the best way of communicating time for them ? 24 Hour time - Activity 111 Using 24 Hour time stops confusion !Look back at the slides showing who uses 24 hour time…. The tide is good for fishing at 0700 tomorrow.Great- early in the day is the best time !24 Hour time - Activity 110 The tide is good for fishing at 7 o’clocktomorrow.I’ll pack a torch !24 Hour time - Activity 19 Who would use 24 hr time ? Transport companies24 Hour time - Activity 16ĭiscuss these ideas with your teacher, write some sentences about how 24 hour is different from 12 hour time.write a sentence about where24 hour time is used.then in your exercise book:24 Hour time - Activity 17Ĭommunicating and understandingLook at the two next slides and talk about what has happened….24 Hour time - Activity 18 Two important things to know about 24 hour time……24 hour time uses numbers only to show the time.24 hour time does not use am or pm.24 Hour time - Activity 13ĭefence forces Who would use 24 hr time ?24 Hour time - Activity 14ĮTA means Estimated Time of ArrivalUnit 4 – report ETA at base campETA at base camp is 14:30 hours24 Hour time - Activity 15 The earliest patent for a digital alarm clock was registered by D.E Protzmann and others on October 23, 1956, in the United States. 24 Hour TimeLearn which of thesenumbers are telling you about time !24 Hour time - Activity 11Ģ4 hour time12 hour time24 Hour time ‘names’ each hour. History Of Digital Clock The first digital pocket watch was the invention of Austrian engineer Josef Pallweber who created his 'jump-hour' mechanism in 1883.
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