The student will determine elapsed time in hours and minutes within a 12-hour period.
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Using a calendar develops the concept of day as a 24-hour period rather than a period of time from sunrise to sunset.
Match a written time (e.g., 1:00, 3:30, 11:00) to the time shown on a digital and analog clock to the hour and half-hour. (a)
Use of a demonstration clock with gears ensures that the positions of the hour hand and the minute hand are precise when time is read.
relating time on the hour and half-hour to daily routines and school schedules (e.g., bedtime, lunch time, recess time); and
The knowledge that a year has about 365 1/4 days will help students understand the necessity of adding a full day every fourth year, called a leap year.