P.K.
I tried the potty chart with my daughter and it worked for a day. I did the MAJOR happy dance, clapping, etc. and that worked briefly. I let her pick out her pretty panties and that didn't motivate her too much. I put her in panties & if she missed and went potty I'd let her clean it up, she didn't care or mind cleaning up. I finally ended up rewarding her with chocolate chips or the large (pink Hersey Kisses) or pink M&M's. I really hated rewarding her with food but a friend told me that kids do respond to food motivation and it was for a short term goal. It worked GREAT! My daughter was fully potty trained in about 2-3 days!
Be patient, it takes time and good luck to you!