31 Various 2008 <p>This is the list of the National Board of Professional Teaching Standards' Five Core Propositions--and a great starting place for any education work. They have been part of National Board Certifications since it's inception, but be sure to look around the website, which is updated regularly. </p> <p>National Board of Professional Teaching Standards (2008). The five core propositions. REtrieved from NBPTS 2 May 2008. http://www.nbpts.org/the_standards/the_five_core_propositio</p> http://www.nbpts.org/the_standards/the_five_core_propositio