At breakfast, Bart eats his cereal into which Marge has included his prescription medications, including Crystal Math, resulting in a quick change in his demeanor.
Bart: The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.
Lisa: That's not right.
Bart: Yes, it is. They're my lines as the Scarecrow in The Wizard of Oz.
See the Scarecrow classroom worksheet.
Lisa suspects that Bart cheated on his math test. The test involves simplifying fractions including 28/42, 24/40, 22/66, 15/20, and 12/36, and Bart’s correct answers resulted in a score of 100%.