In the present study our intention is to provide resources to help introduce the Clapeyron equation in an undergraduate thermodynamics course. We provide MATLAB code and MS Excel template that works with freely available reference data from "Thermophysical Properties of Fluid Systems" by NIST to improve student understanding. Using the available reference data, we demonstrate that assuming the ratio of the enthalpy of vaporization relative to the change in compressibility upon vaporization is constant is often a reasonable assumption, and is far superior to the conventional approach. We further demonstrate the ability of the resulting expression to model the reference vapor pressure data. In directly modeling and working with actual reference data, we believe student engagement and understanding is enhanced.