<p>High schools should teach students more calculus without calculus.</p>
<p>[Calculus</a> Without Calculus — Solving Geometric Calculus Problems With Simple Vector Geometry](<a href=“http://alienryderflex.com/vectors/]Calculus”>Geometric Vector Calculus (Calculus Without Calculus) — Solving Calculus Problems With Simple Geometry)</p>
<p><a href=“http://mathcircle.berkeley.edu/BMC4/Handouts/MaxMin.pdf[/url]”>http://mathcircle.berkeley.edu/BMC4/Handouts/MaxMin.pdf</a></p>