This is one of the shorter sections, but Justin's segments are extremely important because they give us our first substantial look at Auggie's family from the outside. Summer and Jack only briefly interacted with the rest of Auggie's family, but...
August suffers from facial anomalies or disfiguration. His mother has been homeschooling him because of the negative attention he receives from people who stare at his deformed face. His parents wanted to be sure he could emotionally handle...
Jack feels caught without support. When he was with Auggie, science class was much easier. Auggie let Jack copy his perfect notes. Now Jack feels alone without Auggie and unable to cope with Ms. Rubin's constant stream of work and notes.