With the assistance of undergraduate Honors students Nick Gildow and 
Emily Carlson, <A HREF="http://www.math.psu.edu/dmh/"> Diane Henderson</A> 
and I developed a set of laboratory experiments for freshman 
calculus.  Examples include investigations of the
<A HREF="./calc_experiments/eps-del/eps-del.pdf">  
           epsilon-delta definition of a limit  </A>,
<A HREF="./calc_experiments/related_rates/related_rates.pdf"> related rates </A>
and
<A HREF="./calc_experiments/newton/newton.pdf"> Newton's method </A>.