Measures and time · Usually met around P2
Hours, minutes and the calendar
From “Telling the time to the minute” to “Timekeepers old and new”, step by step, each skill with its methods, worked examples and answers.
Skills in this topic, easy to hard
- Telling the time to the minuteThe hour hand's last number is the hour; minutes count in 5s
- Clock faces with Roman numeralsI on the left takes away; on the right adds
- How many minutes passAcross the hour: get to the hour first
- A day's 24 hours: a.m. and p.m.Count to noon (or midnight), then on
- Long and short months, common and leap yearsApril, June, September, November have 30
- Counting days on a calendarBoth ends count: last − first + 1
- Timekeepers old and newAn hourglass always takes the same time