Set 18 (20 Questions)
(Tell time to the nearest quarter hour and know relationships of time, e.g., minutes in an hour, days in a month, weeks in a year. Determine the duration of intervals of time in hours, e.g., 11 a.m. to 4 p.m. Carry out simple conversions within a system of measurement, e.g., centimeters and meters, hours and minutes.)