<p>“I learned how to use a slide rule in 9th grade Chemistry, and through the process I also developed an intuitive understanding of logarithms, scientific notation, mantissas and exponents, estimation, and error-checking.”</p>
<p>They could have done all of this quite effectively without the slide rule. (what I learned was to watch for the decimal point. ;)) I will grant that I could also have learned much from spending several months making flint arrowheads so that I could eat.</p>