Remember To convert time periods to the same

Remember To: • convert time periods to the same unit of time • compare two time periods, then another two • place them all in order, using symbols to save writing

There are 24 hours There are roughly in one day. just over FOUR weeks in each month. There are SEVEN days in ONE week. There are roughly THIRTY days in each month.

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Remember To: • convert time periods to the same unit of time Point to the longest amount of time 5 days 1 week • compare two time periods, then another two • place them all in order, using symbols to save writing There are SEVEN days How do you know? in ONE week.

Remember To: • convert time periods to the same unit of time Point to the longest amount of time 1 week 5 days • compare two time periods, then another two • place them all in order, using symbols to save writing How do you know? less than 5 days < 1 week

Remember To: • convert time periods to the same unit of time Point to the longest amount of time 1 week 5 days • compare two time periods, then another two • place them all in order, using symbols to save writing How do you know? more than 1 week > 5 days

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Remember To: • convert time periods to the same unit of time Point to the longest amount of time 15 days 2 weeks • compare two time periods, then another two • place them all in order, using symbols to save writing There are SEVEN days How do you know? in ONE week.

Remember To: • convert time periods to the same unit of time Point to the longest amount of time 15 days 2 weeks • compare two time periods, then another two • place them all in order, using symbols to save writing There are FOURTEEN days How do you know? in TWO weeks.

Remember To: • convert time periods to the same unit of time Point to the longest amount of time 2 weeks 15 days • compare two time periods, then another two • place them all in order, using symbols to save writing How do you know? less than 2 weeks < 15 days

Remember To: • convert time periods to the same unit of time Point to the longest amount of time 2 weeks 15 days • compare two time periods, then another two • place them all in order, using symbols to save writing How do you know? more than 15 days > 2 weeks

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Convert everything to days! How do you know? Point to the longest amount of time 2 months There are roughly THIRTY days in each month. So roughly SIXTY days in TWO months. 50 days 10 weeks There are SEVEN days in ONE week. There are 70 days in TEN weeks.

Convert everything to days! Point to the longest amount of time 50 days 2 months 10 weeks How do you know? 50 days < 2 months < 10 weeks

Convert everything to days! Point to the longest amount of time 50 days 2 months 10 weeks How do you know? 2 months < < 10 weeks 50 days

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Convert everything to hours! How do you know? Point to the longest amount of time 30 hours 2 days 600 mins There are SIXTY TWENTY FOUR minutes in hours in ONE day. ONE hour. There are FORTY EIGHT hours in TWO days. So 600 minutes is TEN hours.

Convert everything to hours! Point to the longest amount of time 2 days 30 hours 600 mins How do you know? 600 mins < 30 hours < 2 days

Convert everything to hours! Point to the longest amount of time 2 days 30 hours 600 mins How do you know? 30 hours < < 2 days 600 mins

Remember To: • convert time periods to the same unit of time • compare two time periods, then another two • place them all in order, using symbols to save writing

1 Get your whiteboards ready!

Convert everything to hours! How do you know? Point to the longest amount of time 2 days There are TWENTY FOUR hours in ONE day. There are FORTY EIGHT hours in TWO days. 50 hours

Convert everything to hours! Point to the longest amount of time 2 days 50 hours How do you know? 2 days < 50 hours < 2 days

2 Get your whiteboards ready!

Convert everything to minutes! How do you know? Point to the longest amount of time 2 hours There are SIXTY minutes in ONE hour There are 120 minutes in TWO hours 100 mins

Convert everything to minutes! Point to the longest amount of time 2 hours 100 mins How do you know? 100 mins < 2 hours < 100 mins

3 Get your whiteboards ready!

Convert everything to days! How do you know? Point to the longest amount of time 3 weeks 1 month There are SEVEN There are roughly days in THIRTY days in ONE week. each month. So there are TWENTY ONE days in THREE weeks. 15 days

Convert everything to days! Point to the longest amount of time 1 month 3 weeks 15 days How do you know? 15 days < 3 weeks < 1 month < 3 weeks < 15 days

4 Get your whiteboards ready!

Convert everything to days! How do you know? Point to the longest amount of time 2 months 5 weeks There are roughly There are SEVEN THIRTY days in each month. ONE week. There are roughly So there are SIXTY days in THIRTY FIVE days TWO months. in FIVE weeks. 70 days

Convert everything to days! Point to the longest amount of time 5 weeks 2 months 70 days How do you know? 5 weeks < 2 months < 70 days < 2 months < 5 weeks

5 Get your whiteboards ready!

Convert everything to months! How do you know? Point to the longest amount of time 2 years 20 months 300 days There are TWELVE There are roughly months in THIRTY days in ONE year. each month. There are TWENTY So 300 days FOUR months in is roughly TWO years. TEN months.

Convert everything to months! Point to the longest amount of time 20 months 2 years 300 days How do you know? < 2 years < 20 months < 300 days 20 months 300 days

6 Get your whiteboards ready!

Three children try to complete the same puzzle. Each child is timed to see how long they take to finish the puzzle. 2½ mins = 60 secs + 30 secs = 150 seconds How do you know? Amy Two and a half minutes Hattie 120 seconds James 155 seconds Who is quickest to complete the puzzle? Hattie