p6_speed_2_studentonline.pdf  
File Size:  290 kb 
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Cover page
Meeting up / Apart > In what scenarios will these 2 scenarios occur? Is there a formula to find the time taken to meet up or apart? Watch the video to find out! :) 


Meeting up (Opposite direction travelling TOWARDS each other, start at same time)
See how the formula can be applied to problem sum! or do you prefer to do listing method? ;p You can try Q2 before watching the video! If you can get the answer as 90 km/h, proceed to Q3! 

Meeting up (Opposite direction travelling TOWARDS each other, start at different time)
You can accept the challenge and do Q4 before watching the video. If you can get the answer as 5.30 p.m., GOOD JOB! Proceed to Q4! 

Distance Apart (Opposite direction travelling AWAY from one another, start at same time)
Can we still use the formula to find the 'Time taken to meet' for this type of question? ;p Watch the video to find out! Do Q7 as hw. 

Distance Apart (Opposite direction travelling AWAY from one another, start at different time)
You can accept the challenge and do Q8 before watching the video. If you can get the answer as 18.17 km, GOOD JOB! Proceed to Q9! 

Cover page
Catching up / Apart > In what scenarios will these 2 scenarios occur? Is there a formula to find the time taken to catch up or apart? Watch the video to find out! :) 

Distance Apart (Same direction, start at same time)
See how the formula can be applied to problem sum! ;p DO Q11 as hw! :) 

Catching up (Same direction, start at different time)
See how formula can be applied to problem sum! ;p Do Q13 as HW! :) You can try Q14 before watching the video! If you can get the following answers: (a) 80 km/h (b) 20 km WELL DONE!!! Then you will have no problem doing Q15 already! :) 

Page 4  Average Speed
What is Average Speed? To find the average speed for the WHOLE JOURNEY, is it correct to add up the average speeds for the different parts of the journey and divided by the number of parts of journey? OR Total distance divided by Total time taken? Does the Total time taken include the break time? Is average speed ALWAYS referring to the WHOLE JOURNEY? Look at the example in the video to find out! 

Q6
Finding average speed of the whole journey. Learn how to draw the distancetime line here! Do Q7. 

Q9 & Q10 (Fractional part of the journey is given)
Finding average speed of the REMAINING journey. Learn how to draw the distancetime line here! Do Q8. 

Q12
Speed question involving break time (or rest time)! After watching the video, do Q11. 

Q13
Dare the challenge and try this question before watching the video! Did you get the answer as _____(watch the first 5s of the video)? 



p6_speed_1_studentonline.pdf  
File Size:  393 kb 
File Type: 

Introductions to Speed
What is Speed? What is Speed Triangle Formula? Recap on how to do conversion of time > To complete questions on Page 1. 

What is Distance, Speed and Time?
How do we calculate them? What is DST triangle? This video explains it all! In Singapore's context, the units of measurement used for distance are km and m, not miles. Hence, you may change the word 'miles' to 'km' in this video! 

In this video, you will learn more on how to calculate Speed, Distance and Time. You will also learn that the units of measurement must be consistent to one another.
You will also learn how to calculate Average Speed. Can we just use add up the average speeds for the different parts of the distance and divide by 2? No, WE CAN'T! This is because the formula to calculate Average Speed is Total distance / Total time (including break time) and NOT Total average speed/ No. of parts of distance! 

Page 2, Section B
Learn how to find Speed, Distance and Time, given the other 2 quantities. Note: Units of measurement of the quantities must be consistent! To complete the rest of the questions as homework. 

Page 5, Q1 (Simple Word Problem)
After watching the video, to do Q2 & Q3 as homework. 

Page 6, Q4
What is distance time line? Watch this video to see what it is all about. However, do note that this is just the basic distancetimeline ;p More challenging one are on the way ;p 

You can try this question BEFORE watching the video to see if you can get the question correct! :) or a mistake on ... ;p
