1. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Time Distance Speed Calculating Distance www.mathsrevision.com Calculating Speed Calculating Time Mixed Problems

2. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com Find the area and perimeter of the rectangle. 9 m 4 m

3. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand the distance formula. 1. We are learning how to work out simple distance. Distance Working Out Distance 2.Apply the formula to calculate simple distance.

4. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Distance Working out Distances Imagine you were travelling in a train at a steady speed of 80km/hr. In 1 hour you travel :80 x 1 = 80 km In 2 hours you travel :80 x 2 = 160 km In 3 hours you travel :80 x 3 = 240 km Can you guess what the formula is : in symbols

5. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Distance Example : A racing car travelled at 50 km/hr. What is the distance covered in 6 hours ? Working

6. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Now try TJ2b Ex 1 Ch9 (page 87) www.mathsrevision.com Distance

7. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com 1.692 ÷ 1000 2.10% of £19 3. Name this triangle

8. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand the time formula. 1. We are learning how to calculate time taken. Time 2.Apply the formula to calculate simple time taken.

9. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Working Out Time Imagine you flew 800 miles to Paris and the average speed of the plane was 200 miles/hr. To travel 200 miles takes 1 hour : To travel 800 miles takes : 800 ÷ 2 00 = 4 hours Can you guess what the formula is : in symbols

10. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Ex : Tony ran 400 metres at an average speed of 5m/s. How long did he take to complete the race. Working

11. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time A train departed Glasgow at 0715 and arrived in London at 1315. The distance between Glasgow and London is 420km. What was the average speed of the train ?

12. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Now try TJ2b Ex 2 Ch9 (page 88) www.mathsrevision.com Time

13. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com 1.4.29 x 1000 2.6.72 ÷ 6 3. 25% of £30

14. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.Understand the speed formula. 1. We are learning how to calculate simple speed. Speed Working Out Speed 2.Apply the formula to calculate simple speed.

15. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Speed Working Out Speed Imagine you sailed 45 kilometres between two islands and it took 3 hours. In 3 hours you travel := 45 km In 1 hour you travel : 45 ÷ 3 = 15 km This means your speed is :15km/hr Can you guess what the formula is : in symbols

16. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Speed Example : Sean flies to Majorca on holiday, a distance of 2500km. It took 4hrs to get there. What was the plane’s average speed? Working

17. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Now try TJ2b Ex 3 Ch9 (page 90) www.mathsrevision.com Speed

18. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com What are the rules for adding or subtracting integers ?

19. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1. We are revising Basic DST. 1. Remember triangle method for distance, speed time problems. Time Distance Speed Mixed Problems 2.Apply triangle method to mixed problems (Whole Level 2bers only).

20. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Distance Speed Mixed Problems D ST Simple way to remember the 3 formulae ! D=S T

21. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Distance Speed Mixed Problems Ex : A bus travels from Glasgow to London a distance of 556.8km. It took 9 hours and 36 minutes. What was the average speed of the bus ? Working D ST

22. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Distance Speed Mixed Problems Example : A train travelled at 70 km/hr for 2hrs 54mins. How far did it travel in this time. Working D ST

23. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Time Distance Speed Mixed Problems Ex : An aeroplane flies between Glasgow and New York. The distance between the two cities is 3200 miles. The average speed of the plane is 500 mph. How long did the journey take? Working D ST

24. Level 2 22-Nov-16Created by Mr. Lafferty Maths Dept. Now try TJ2b Ex 4 Ch9 (page 92) www.mathsrevision.com Mixed Questions Have you updated your Learning Log ? Are you on Target ? I can ? Mind Map