MNU 2-10a MNU 2-10b 9-Dec-15 Time Revision MNU 1-10a Counting Method Stopwatch Time

MNU 2-10a MNU 2-10b 9-Dec-15 Starter Questions Q1.Calculate Q2.Round to 1 decimal place Q3. How many minutes in 3hours Q4.The answer to the question is 180. What is the question.

MNU 2-10a MNU 2-10b 9-Dec-15 Learning Intention Success Criteria 2.Change from 24 to 12 hour clock. 1.To revise previous work on converting between 12 and 24 hr clock and vice versa. Revision 1.Change from 12 to 24 hour clock. Converting Time

9-Dec pm10 pm9 pm8 pm7 pm6 pm5 pm4 pm3 pm2 pm1 pmmidday am10 am9 am8 am7 am6 am5am4 am3 am2 am1 am midnight 12/24 Hour Clock To go from 12 hour clock to 24 hour clock just add 12 to the pm hours: Examples 8 pm becomes 9 pm becomes 6:30 pm becomes 11:30 pm becomes 4:20 pm becomes 3:10 pm becomes 1510

9-Dec pm10 pm9 pm8 pm7 pm6 pm5 pm4 pm3 pm2 pm1 pmmidday am10 am9 am8 am7 am6 am5am4 am3 am2 am1 am midnight 12/24 Hour Clock To go from 24 hour clock to 12 hour clock just subtract 12 from the hours if it is greater than 12: 8 pm 9 pm 5:30 pm 10:08 pm 8:06 pm Examples 2000 becomes 2100 becomes 1730 becomes 2208 becomes 2006 becomes 1350 becomes 1:50 pm

MNU 2-10a MNU 2-10b greater than 12 subtract 12 Let’s make up our own questions ! 9-Dec-15 Converting Time Key Points 12 hour clock Analogue clock ALWAYS use AM or PM 24 hour clock Digital clock NEVER use AM or PM pm times add on 12 ALWAYS 4 digits Hours Hours

MNU 2-10a MNU 2-10b 9-Dec-15 Learning Intention Success Criteria 2.Find time differences between two times, showing all working. 1.To explain the counting method to find the difference between two times. 1.Understand the counting method.. Counting Method

MNU 2-10a MNU 2-10b 9-Dec-15 Counting Method When working out time difference we will use the Counting Method. This method will always work. Example : Find the time difference between hrs and hrs HrsMins nearest hour What’s left hours 20 mins2 hrs10 mins

MNU 2-10a MNU 2-10b A bus leaves Kirkintilloch Main Street at hrs and arrives in Aberdeen at hrs. How long was the journey. 9-Dec-15 Counting Method HrsMins nearest hour What’s left hours 20 mins3 hrs50 mins But there are 60 minutes = 1hour 70 mins = 1hr 10mins 4hrs 10 mins

Using Timetables Until Hour Every And Glasgow Bus Station George Square Port Dundas Springburn Milton Bishopbriggs Kirkie Bus Station * * * How long does the first bus take from Kirkie to Glasgow HrsMins nearest hour What’s left hours 35 mins0 hrs14 mins

MNU 2-10a MNU 2-10b Let’s make up our own question ! The key steps are left on the slide to help you. 9-Dec-15 Counting Method HrsMins nearest hour What’s left + hours mins hrs mins But there are 60 minutes = 1hour