Year 4 Telling the Time and the 24-Hour Clock: lesson and practice

By the end of this chapter you will be able to

• Read an analogue clock: o'clock, half past, quarter past, quarter to, and every five minutes, saying past or to
• Read a clock to the nearest minute, on clocks with Arabic numbers, Roman numerals and no numbers, and place the hour hand correctly
• Write times as digital times with am and pm, and on the 24-hour clock, and change between the three ways of writing time
• Change between seconds and minutes, minutes and hours, hours and days, days and weeks, and years and months
• Know how many days are in each month (the knuckle trick), and what a leap year is
• Work out how long something takes, and find end and start times, by counting on, including across noon and midnight
• Read bus, train, TV and school timetables, and work out journey times and waiting times

You should already know

• Counting in fives and the 5 times table (Chapter 3)
• Adding and subtracting numbers and borrowing across 60 (Chapter 2)
• Roman numerals to 12 (Chapter 1)
• Halves, quarters and fractions of an amount (Chapter 5)
• Measures and converting units (Chapter 7)

Where this leads

• Shapes, angles and symmetry: turns on a clock face (Chapter 9)
• Statistics: time graphs and tables (Chapter 11)
• Converting between units of time and timetables in Year 5
• Time zones and speed in later years