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From users who are members of Transition to university :
Chris Graham
|
said | Ready to use | 7 years, 5 months ago |
Bradley Bush
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said | Needs to be tested | 7 years, 5 months ago |
History
Chris Graham 7 years, 5 months ago
Gave some feedback: Ready to use
Chris Graham commented 7 years, 5 months ago
I've changed some of the simplification rules in the advice, corrected the calculation for the gradient and other inconsistencies with regards to the order of points A and B. Fixed some typos.
Elliott Fletcher 7 years, 5 months ago
Published this.Aiden McCall 7 years, 5 months ago
Saved a checkpoint:
Edited the wording and equations in main and advice.
Bradley Bush 7 years, 5 months ago
Gave some feedback: Needs to be tested
Bradley Bush commented 7 years, 5 months ago
Thank you for the follow up advice, I'm hoping it's even better now
Chris Graham 7 years, 5 months ago
Gave some feedback: Has some problems
Chris Graham commented 7 years, 5 months ago
Much better!
One more thing... points A and B should be labelled the other way round. Let's give your question the context of driving in a car: if you travel from A to B then, as it stands, the gradient is positive. Related to this, you do not give any indication where the equation for the gradient comes from. You could say something like, the gradient is the ratio of the vertical change ($y2-y1$) to the horizontal change ($x2-x1$).
Bradley Bush 7 years, 5 months ago
Gave some feedback: Needs to be tested
Chris Graham commented 7 years, 5 months ago
Brad, why not split this into two parts, the first asking for the gradient and intercept and the second the equation. The student can then see if they are on the right lines. You could also then use adaptive marking (ro replace m and c) in the second part.
Bradley Bush commented 7 years, 5 months ago
Thank you for the feedback. I have acted on all the points you made there and I will apply these to the other 3 versions of this question too.
Chris Graham commented 7 years, 5 months ago
Good work with the adaptive axis ranges, however in some cases the x axis is objectionably at edge of the board, as the maximum of the y range evaluates to 0. Use the javascript function
Math.max()to set a minimum range displayed above the axis, e.g.Math.max(yb+4,2)would set the 'y-max' to a minimum of 2.You could use a similar method to check that the intercept is on the board (it currently isn't always).
Check your spelling, e.g. "coordiantes" and that your sentences read fluidly, e.g. "find the straight line equation of the line running through these points" can be written "find the equation of the straight line running through these points" and so on.
Chris Graham 7 years, 5 months ago
Gave some feedback: Has some problems
Bradley Bush 7 years, 5 months ago
Gave some feedback: Needs to be tested
Bradley Bush 7 years, 5 months ago
Created this as a copy of Find the equation of a line through two points - positive gradient.There are 103 other versions that do you not have access to.
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