Songfacts®:

• This short section of Pink Floyd's album The Wall is the third and final part of the "Another Brick In The Wall" motif. The first part gives us some backstory on the main character, Pink, letting us know that his father died in World War II, a seminal moment that caused him great trauma. In Part 2, he's at odds with his teachers who belittle him and try to make him conform. Part 3 comes later in the story after he's convinced his wife has been cheating on him. He decides to isolate himself even further, putting up more bricks in his proverbial wall.
  
  Part 2 of "Another Brick In The Wall" (the one that starts, "We don't need no education...") is the most famous song on the album. It was released as a single and went to #1 in many territories.
• The Wall is largely the work of Roger Waters, who was firmly entrenched as the band's leader by this point. For the first time since their 1969 album Ummagumma, they brought in an outside producer to help out: Bob Ezrin. This was because Waters needed a creative soundboard from outside the band - he and his bandmates were getting along like oil and water. Ezrin also had the technical skills to make the songs flow together, per Waters' vision. "Another Brick In The Wall (Part 3)" eases out of "Don't Leave Me Now" and flows seamlessly into the next track, "Goodbye Cruel World."