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...Student difculties with the dirac delta function bethany r wilcox and steven j pollock department of physics university colorado ucb boulder co abstract thediracdeltafunctionisastandardmathematicaltoolusedinmultipletopicalareasintheundergraduatephysics curriculum while functions are usually introduced in order to simplify a problem mathematically students often struggle manipulate interpret them better understand at upper division level we examined responses traditional exam questions conducted think aloud interviews our analysis was guided byananalytical framework that focuses on how activate construct execute reect here focus using express charge distributions context junior electrostatics challenges included invoking spontaneously constructing two three dimensional integrating novel expressions recognizing can have units keywords education research mathematics acer pacs fk introduction lemsolvingatthislevelisoftencomplex thusanorgani investigations aimed identifying understanding za...