<p>In the section of the common app where you have to explain what have you been doing since you graduated from high school I included this sentence:</p>
<p>"I have been attending a cram school because my high school didnt have enough emphasis on some subjects that are fundamental for my intended major (namely biology, organic chemistry and physics). "</p>
<p>It is very awkward. Also, state what you wanted to accomplish without bashing your high school: "I have been attending a "cram school" to explore biology, organic chemistry & physics in more depth" or something along those lines. Leave out the parenthetical.</p>