I have long observed that finish 2 º ESO, and in a few months, you see decreases appreciably as it evaporates the skill and safety you'd acquired with the equations of first and second and the systems level.
Above all, are handled with little success, even in Bachelor of Science, the equations with denominators and adding and subtracting several terms. Seems to relax the habits of order and rigor, are cleared points whim, with embarrassing self-confidence. The case enters critical area if some coefficients bring radical.
From here hold that the tiresome practice never fails. With this idea, published a collection of equations and systems which I call "special" worthy of the most dedicated students, not exclusively dedicated to the finest algebra, but all students sensible and aware of their own weaknesses.
is a challenge that ought to collect as many fans as detractors of the 'Math beyond notes' which are, after all, the most rewarding.
The copy of the file. Doc is, As always, the Board of 4 º ESO. I have no doubt that we will award a collaborator with the link immediately ready for use.
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