Ironically, despite being a song about individuality, the lyrics are            full of apparent conformity. Gone is any first person singular pronoun.            If you scan the lyrics, you won't see any mention of "I." Instead, the            lyrics boast "WE don't need," a collective boast alluding to the conformity            of ideas. Brad Kaye sent me an e-mail concerning the dichotomy of the            song that I felt needed to be repeated here. "When the school children            are all chanting 'We don't need no education' together in unison, this            act, in a way, is MORE conforming than the education they have grown            to hate. If you think about it, Roger Waters was saying that even in            a revolt against conformity there will still be the presence of conformists,            or uniformed followers. The use of the helpless school children is magnificent            and proves my point even more. These kids do what they are told! I mean,            I read somewhere that Roger got the idea to use a group of kids one            day and then BANG, the next day he asked a school if he could come in            and BANG, they all agreed and within a short period of time, the entire            chorus of children was recorded. No questions asked. Nobody raised a            fuss or anything, even the teachers in the school were excited and caught            up in the moment without fully understanding what was going on. My point            is this: Roger Waters wanted to show how conformity is ever-present,            even when we're little, and even when we are rebelling. His point is            definitely powerful." I couldn't agree more. (Side note: it was actually            Floyd producer Bob Ezrin who originally came up with the idea to record            schoolchildren singing the anthem. Seeing the potential for a radio            hit, Ezrin recorded the children and mixed the song before approaching            the band with the final product. Needless to say, Waters liked the reworked            version and kept it on the album.)
Musically speaking, "ABITW 2" is much more varied and vibrant than            the trilogy's first installment. As I mentioned before, the musical            styles of the "Brick in the Wall" trilogy reflect the development of            Pink. Whereas the music in Part 1 is much more subdued and            repetitive reflecting Pink's budding self-awareness, Part 2 is much            more energetic, musically echoing Pink's lively adolescence, his developing            artistic imagination, as well as his conformity to the conventions of            building a wall as seen in the repetitive verse and chorus. Every personal            injury repeatedly becomes "just another brick in the wall," linking            the ideas of conformity with those of cycles. The animated guitar solo            breaks the monotony for a few moments but ultimately the song fades            back to the sounds of the school yard and, above all else, the shouting            teacher who continues to lord over the children's lives yelling "wrong,            guess again!" while reinforcing the lesson previously mentioned that            "if you don't eat your meat, you can't have any pudding." Interestingly,            the repetitive sounds (guitar chord / verse / chorus) and narrative            cycle (teacher / mental revolution / conformity / teacher) rolls perfectly            into the dull drone of the phone ringing, briefly foreshadowing the            events that take place in the transition between "Young Lust" and "One            of My Turns." This later transition in turn reinforces the ideas of            cyclical conformity and repetition while hinting at the failures of            many fundamental social institutions such as school and marriage. 
Like the popularity of the song "Another Brick in the Wall, Part 2,"            the movie representation of the song is one of the most distinctive            and well-known pieces in the            Pink Floyd video collection. The darkness and cynicism of the set design            is due in large part to Gerald Scarfe who based the factory-like school            in the video on some of his previous artwork inspired by his own education.            The children march in unison to the same beat, rolling through a machine            only to emerge as putty-faced clones void of individual distinction            who ultimately falling blindly into an oversized meat grinder, metaphorically            pulverized and minced into the same ground beef-like form as the preceding            victim. It's interesting to note that many of the machines pictured            are made up with parts that resemble hammers. Hammers            are a major dichotomous symbol in "the Wall" possessing both creative            and destructive powers, simultaneously beneficial and oppressive. The            same hammer that constructs a house has the power to tear it down. Similarly,            the hammers in the machines metaphorically create ideal members of society            while destroying each child's individuality. Both natures of the symbolic            hammer are explored in greater detail later in the movie and album as            Pink slips further into his dementia.
The            ideas of conformity in revolution inherent in the song are further solidified            in the accompanying film footage. Although the children in the second            verse sing lyrics of personal rebellion, their unified singing coupled            with their symmetrical seating in the film are as eerie and standardized            as when they marched down the hall in oppressive unison. Despite their            rebellious intentions, they have become just as homogeneous as when            they were school clones. Furthermore, like the dual nature of the hammers,            what begins as a productive revolution (the regaining of individuality)            turns into destructive violence as the children destroy their school            and create a bonfire with the instruments of their past educational            repression that serves as a funeral pyre for their teacher whom they            drag out of the school kicking and screaming. This scene of absolute            anarchy spawned by the overthrow / absence of an authoritarian figure            is evocative of William Golding's novel Lord of the Flies in            which a group of school children revert to being savages when their            plane crash lands on a deserted island. Similar to almost every theme            in "the Wall," Waters alludes to both the creative and destructive forces            of any one idea. While overly-domineering figures are destructive to            personal 
development,            the absence of any authority figure is just as caustic. The dictatorial            teacher represses each individual child but the lack of any education            whatsoever is just as harmful. In this sense, living life is like walking            a thin wire between two polar but equally destructive forces; to live,            one must either skate over the thin ice carrying the personal burdens            of the past or break through the ice and drown in self-destruction.          
One last interesting matter concerns the aforementioned blurring of            reality with imagination. While the scenes of the children marching            through the factory-like school are undoubtedly fantastical, the rebellion            that takes place during the guitar is much more realistic, thus causing            a bit of confusion as to whether these events are truly taking place.            For a while, the viewer is completely submerged within Pink's mind wondering            about the authenticity of what they are seeing. There are no fantastical            elements to the set and the violence portrayed is certainly feasible            albeit horrific. In the end, the viewer is instantaneously thrust out            of these dark imaginings as the camera cuts to Pink rubbing his ruler-struck            hand. It is at this point that we are fairly certain that what            has just taken place was completely in Pink's mind, once again reminding            us as the viewer to keep on our toes lest we fall for Pink's illusions.            As the album and movie progress and Pink becomes further shut off behind            his wall, his imaginative visions become much grander and much more            dangerous, increasingly distorting the line between reality and fantasy.
http://www.thewallanalysis.com/secondbrick.html