The Fairly OddParents S05E27 - Smart Attack

Dad attempts helping Timmy with his homework, but he keeps doing more harm than good. In oder to fix this problem, Timmy wishes that his father was the smartest dad in the town. However, Timmy's father is much too smart; he pays a lot more attention to detail, such as Timmy's talking goldfish. Timmy, despite going through trouble doing so, manages to stop his father from dissecting Cosmo and Wanda in front of the scientific community.