Distance/time graphs are shown through the example of measuring sporting fitness, in a video feed used with KS4 maths students.
Inside Maths builds on the success of the series Maths 4 Real. Fran thinks Dave is turning into a couch potato so packs him off to a gym to do some exercise and send through some distance/time data for her to plot. Arriving at the gym, Dave is challenged by two students to a 200-metre sprint and a 1000-metre run on a running machine. Once the races have been run, Fran is able to plot the graphs and compare Dave’s race with those of the students. It is clear that Dave is not much good. Maybe he will fare better on the rowing machine. But after a short energetic burst he gives up. Back in the studio Fran looks at the gradients of both Dave and the student rower, and shows that the student consistently rowed faster. Dave disagrees and asks Fran to check the race at around one minute in. At this point Dave’s graph is a curve, so using tangents Fran is able to see that Dave was, for a short time, faster! Amazing.
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What exactly are they doing that any teacher couldn't do (better) in class? <br /> Does idiotic playfulness makes anything automatically fun? <br /> Also, well done for insisting on the usual stereotypes: dumb ass male who is a loser and gets bossed around by everyone; female who does the Maths talk - she must be the smart one - and who gets to boss him around. He should be thankful to be in her presence and to be told what to do by her and some teenagers.
A little too slow and patronising for my students without enough expansion on drawing a tangent and finding the gradient/ speed that way.
A really good video showing the different elements of distance time graphs and linked to real life activities. We need to bring more visual stimuli into our classrooms and provide opportunities for students to both watch and listen to others instructing them and allow opportunities for them to ask probing questions. Thank You for sharing - I shall eb incorporating into my teaching.
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