# Time Distance Speed www mathsrevision com Revision of

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Time Distance Speed www. mathsrevision. com Revision of Level D/E Time Calculating Distance Calculating Speed Calculating Time, Distance and Speed Problems Converting Hour Minutes to Decimal Time Converting Decimal Time to Hour Minutes Time – Distance Graphs 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Revision of Level D/E Learning Intention 1. To revise Level D/E work on Time. Success Criteria 1. Convert 12 hr to 24 hr clock. 2. Convert 24 hr to 12 hr clock. 3. Count Method to find time intervals. 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Revision of Level E Reminder ! 12 hrs to 24 hrs 11/23/2020 24 hrs to 12 hrs Created by Mr. Lafferty Maths Dept.

Time Intervals www. mathsrevision. com Revision of Level D/E Reminder ! Example : How long from 2. 30 pm till 5. 20 pm Add to get Total 2 hrs + 30 m + 20 m = 2 hrs 50 m 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Revision of Level D/E Now try Exercise 1 Ch 43 (page 179) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 4 x 6 x 4 x 120 70 11/23/2020 Created by Mr. Lafferty Maths Dept. o o

Distance www. mathsrevision. com Working Out Distance Learning Intention 1. To explain how to work out simple distance calculations using the distance formula. 11/23/2020 Success Criteria 1. Know the distance formula. 2. Use the formula to work out simply distance calculations. Created by Mr. Lafferty Maths Dept.

Distance www. mathsrevision. com Working out Distances Imagine you were travelling in a train at a steady speed of 80 km/hr. In 1 hour you travel : 80 x 1 = 80 km In 2 hours you travel : 80 x 2 = 160 km In 3 hour you travel : 80 x 3 = 240 km Can you guess what the formula is : in symbols 11/23/2020 Created by Mr. Lafferty Maths Dept.

Distance www. mathsrevision. com Working Out Distance Now try Exercise 2 Ch 43 (page 180) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Speed www. mathsrevision. com Working Out Speed Learning Intention 1. To explain how to work out simple speed calculations using the speed formula. 11/23/2020 Success Criteria 1. Know the speed formula. 2. Use the formula to work out simple speed calculations. Created by Mr. Lafferty Maths Dept.

Speed www. mathsrevision. com Working Out Speed Imagine you sailed 45 miles between two islands and it took 3 hours. In 3 hour you travel : = 45 km In 1 hours you travel : 45 ÷ 3 = 15 km This means your speed is : 15 km/hr Can you guess what the formula is : in symbols 11/23/2020 Created by Mr. Lafferty Maths Dept.

Speed www. mathsrevision. com Working Out Speed Now try Exercise 3 Ch 43 (page 181) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 4 cm 11/23/2020 Created by Mr. Lafferty Maths Dept. x cm

Time www. mathsrevision. com Working Out Time Learning Intention 1. To explain how to work out simple time calculations using the time formula. 11/23/2020 Success Criteria 1. Know the time formula. 2. Use the formula to work out simple time calculations. Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com 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 ÷ 200 = 4 hours Can you guess what the formula is : in symbols 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Working Out Time Now try Exercise 4 Ch 43 (page 182) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed www. mathsrevision. com Mixed Problems Learning Intention 1. To show the traingle method of remembering the distance, speed and time formulae. 11/23/2020 Success Criteria 1. Know and remember triangle method for distance, speed time problems. 2. Apply triangle method to mixed problems. Created by Mr. Lafferty Maths Dept.

Time Distance Speed www. mathsrevision. com Mixed Problems D=S x T D S T Simple way to remember the 3 formulae ! 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems www. mathsrevision. com Example 1 : Daniel drove from his house to the Blackpool, a distance of 135 miles. It took him 2 hrs 15 mins. What was his average speed? Working 11/23/2020 Time MUST be in decimal form Created by Mr. Lafferty Maths Dept. D S T

Time Distance Speed Mixed Problems www. mathsrevision. com Example 2 : A racing car travelled at 50 km/hr. What is the distance covered in 6 hours ? Working D S T 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems www. mathsrevision. com Example 1 : How long did the bus journey take if it travelled a total distance of 60 km at and an average speed of 40 km/hr. Working D S T 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed www. mathsrevision. com Mixed Problems Now try Exercise 5 Ch 43 (page 183) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time www. mathsrevision. com Converting Hrs Mins to Decimal Time Learning Intention 1. To show to convert hours and minutes to decimal time. Success Criteria 1. Know that decimal time MUST be used in formulae. 2. Convert from hours and mins to decimal time. 11/23/2020 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time www. mathsrevision. com Converting Hrs Mins to Decimal Time You should already know : Example 1 : 48 minutes to decimal is = 0. 8 hr Example 2 : 2 hr 15 minutes to decimal is = 2. 25 hr To change minutes to a decimal ‘divide by 60’ 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed www. mathsrevision. com Converting Hrs Mins to Decimal Times Now try Exercise 6 Ch 43 (page 185) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time www. mathsrevision. com Converting Decimal Time to Hrs Mins Learning Intention 1. To show to convert back from decimal time to hours and minutes. 11/23/2020 Success Criteria 1. Know the rule for converting back from decimal time to hours and mins. Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time www. mathsrevision. com Converting Decimal Time to Hrs Mins You should already know : To change minutes to a decimal time ‘divide by 60’ To convert back to and minutes we do the opposite : To change decimal time to minutes ‘multiply by 60’ 11/23/2020 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time www. mathsrevision. com Converting Decimal Time to Hrs Mins To change minutes to a decimal ‘divide by 60’ Example 1 : 0. 7 hrs to minutes is Example 2 : 3. 4 hrs to hours and minutes is = 3 hrs 24 mins 11/23/2020 Created by Mr. Lafferty Maths Dept. = 42 mins

Time Distance Speed www. mathsrevision. com Converting Decimal Time to Hrs Mins Now try Exercise 7 Ch 43 (page 187) 11/23/2020 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Starter Questions 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Graph www. mathsrevision. com Interpreting Time – Distance Graphs Learning Intention 1. To interpret Time – Distance Graphs. 11/23/2020 Success Criteria 1. Understand the term interpret. 2. Understand that the speed can be calculated from the Time - Distance Graph. Created by Mr. Lafferty Maths Dept.

Time Distance Graph www. mathsrevision. com Interpreting Time – Distance Graphs 11/23/2020 Created by Mr. Lafferty Maths Dept.

Time Distance Speed www. mathsrevision. com Solving Inequalities Now try Exercise 8 Ch 43 (page 189) 11/23/2020 Created by Mr. Lafferty Maths Dept.