▁Theory . ▁ ▁Research ▁on ▁use ▁of ▁simulations ▁in ▁education ▁ ▁The ▁National ▁Science ▁Foundation ▁has ▁provided ▁gr ants ▁for ▁several ▁organizations ▁to ▁study ▁Ph ET ▁use : ▁ ▁Ph ET ▁Inter active ▁Sim ulations : ▁Using ▁Research - B ased ▁Sim ulations ▁to ▁Trans form ▁Under grad uate ▁Chem istry ▁Education ▁# 1 2 2 6 3 2 1 ▁Princi pal ▁Investig ator : K atherine ▁Per kins ; ▁Co - Pr incipal ▁Investig ator : Ro bert ▁Par son ; ▁Organ ization : Univers ity ▁of ▁Colorado ▁at ▁B ould er ; ▁ 0 9 / 1 5 / 2 0 1 2 ▁Exp and ing ▁Ph ET ▁Inter active ▁Science ▁Sim ulations ▁to ▁Gr ades ▁ 4 - 8 : ▁A ▁Research - based ▁Appro ach ▁# 1 0 2 0 3 6 2 ▁Ch anging ▁how ▁physics ▁students ▁approach ▁learning ▁with ▁simulations : ▁Research ▁and ▁development ▁of ▁Ph ET - based ▁tutorials ▁# 1 2 4 5 4 0 0 ▁Princi pal ▁Investig ator : K atherine ▁Per kins ; ▁Co - Pr incipal ▁Investig ator : Michael ▁Dub son , ▁Daniel ▁Schw art z , ▁No ah ▁Pod ole f sky ; ▁Organ ization : Univers ity ▁of ▁Colorado ▁at ▁B ould er ; ▁ 0 9 / 0 1 / 2 0 1 0 ▁Physics ▁Education ▁Research ▁User ' s ▁Guide : ▁A ▁Web ▁Resource ▁for ▁Physics ▁Edu c ators ▁# 1 2 4 5 4 9 0 ▁Princi pal ▁Investig ator : And rew ▁El by