To solve problems involving converting different units of

To solve problems involving converting different units of time into one common measurement. Year 5 - Measure (GDS) Lesson 2

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Recap from the last lesson… Look at the skills and then quickly check your understanding. Previously, we looked at how we can convert between metric units and imperial units. Let’s quickly recap the rules of how to convert back and forth between metric and imperial units. Metric to metric: Metric units include millimetres, centimetres, metres and kilometres for length; grams and kilograms for mass and millilitres and litres for capacity. In order to convert between them you will have to multiply or divide the value by 10, 100 or 1000. Look at the diagrams to get a better picture. Remember when converting from a smaller unit to a larger unit you will need to divide, but when converting from a larger unit to a smaller unit you will need to multiply.

Learning check: You do…. QUESTIONS: 1. Convert the following metric units: a) 784 cm = ____m b) 2034 g = _____kg c) 49. 43 l = ______ml Answers: 1 a) 7. 84 m 1 b) 2. 034 kg 1 c) 49430 ml If you are struggling or didn’t get the correct answers, rewatch the video above which breaks down how to convert between different units of measure. If you feel confident, carry on with the slides.

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Teacher Example… Fluency - converting between different units of time. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Convert between the following units of time: 1. 180 seconds = ____minutes 2. . 240 minutes = _____ hours 3. 5 hours = ______ minutes Convert between the following units of time: 1. 28 days = ____ weeks 2. 24 weeks = _____ months 3. 72 months = _____ years

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Learning check: You do…. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Convert between the following units of time: 1. 300 seconds = ____minutes 2. 720 minutes = _____ hours 3. 9 hours = ______ minutes Convert between the following units of time: 1. 70 days = ____ weeks 2. 240 weeks = _____ months 3. 36 months = _____ years Answers: 1. 2. 3. 4. 5. 6. 5 minutes 12 hours 540 minutes 10 weeks 20 months 3 years

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Application question: Jamie and Chrissy were both running a marathon. Jamie finished the marathon in 3 hours and 30 minutes. Chrissy finished the marathon in 170 minutes. Who finished the marathon quicker? Reasoning question: Umar argues that 21 days has the same amount of weeks as 25 days. Is he correct? Explain your answer. Teacher Example… Application and reasoning questions. . . Watch the video to see how we can solve this problem.

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Learning check: You do…. Q 1 Samuel ran a 400 metres race in 192 seconds and Susan ran the same race in 3 and half minutes. Who ran the race quicker? Q 2 Kevin says that 26 months is the same as 2 and half years. Do you agree? Explain your answer.

LI: To solve problems involving converting different units of time into one common measurement. I know that seconds, minutes and hours go up in 60 s. I can use the relationships between seconds, minutes and hours to convert between them. I can use the relationship between weeks months and years to convert between them. Vocabulary Convert Units of measure Time Seconds Minutes (60 seconds) Hours (60 minutes) Days (24 hours) Weeks (7 days) Months (4 weeks, up to 31 days) Years (12 months, 52 weeks; 365 days) Learning check: Answers: Q 1 Samuel ran a 400 metres race in 192 seconds and Susan ran the same race in 3 and half minutes. Who ran the race quicker? 192 divided by 60 = 3 minutes and 12 seconds Samuel ran the race quicker. Q 2 Kevin says that 26 months is the same as 2 and half years. Do you agree? Explain your answer. Kevin is incorrect because 26 divided by 12 = 2 years and 2 months which is not 2 and half years (or 2 years and 6 months).

Well done! Now complete the worksheet below on the google doc. You can either write the answers on the google doc, or write it out on paper and send a picture of your work to your teacher. https: //docs. google. com/document/d/1588 s. Xdneu. DIvv 1 E 8 vv. Yq 6 yw. TL 2 Da. Us 0 xe. R 6 yh 3431 H 4/edit Remember to log onto maths whizz as well this week!