The "two parts ABCs" allusion refers to the fundamental school setting. The author wants the readers to understand how the school system prioritizes planned lessons and have students memorize information that they believe will most likely not be utilized later in life. The author expresses that this is a small part of the school experience. They also use the allusion "Where Do I Stand in the Great Pecking Order of Humankind" to refer to how teenager worrying about where they fit in. The author states that part of the majority of the school experience is finding your place in it socially.
