Maths intervention

Equal measurement
At maths intervention we learnt about equal measurement.
If we had a zip lock bag with a bull dooz klip and five rubber bands tied to it. We put a big pin in one of the desks tie the rubber bands to it, then put some marbles in the bag and drop it from the desk. After it got dropped from the desk and it is still again you measure the rubbers bands with a ruler.you have to measure it three times to get an average then you write the three down at them together divide them by three because that's how many trial you had.then you get your average then add some more marbles to the bag and try it out again you this least five times then you make a skater plot.picture of a skater plot.http://www.regentsprep.org/regents/math/algebra/ad4/PracPlot.htm
Then we have to add more bands and do it again.