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In a "White Teacher Talks About Race" Tyrone is an African-American student who has had trouble with the law in the past but is working very hard to finish school and keep out of trouble. During a meeting with other teachers, Julie Landsman was one of two teachers to try and push Tyrone to further his education.
If 6 out of your 8 teachers are not urging you to go to college, what would likely be your perspective on your ability to succeed in college.
With 6/8 teachers not believing in you, it may cause you to doubt your own ability to succeed.
(The book leaves off with Tyrone looking into furthering his education; Landsman believes she helped him decide that.)