This calculator might have a future in our underperforming schools:
From the moment pupils start using calculators they stop using their heads – for all quantitative work. The detrimental effect on maths education is well known.
Calculators, however, cannot be removed from classrooms anymore- they are indispensible because many results can only be received from calculators (e.g. root7, cosine70 etc.)
To read the full, original article click on this link: A Calculator That Requires You to Estimate Before It Gives You The Answer - Business Opportunities Weblog
