The report found that when there is commercial activity in schools, critical thinking is less likely to be encouraged. In schools, teachers and administrators may avoid "biting the hand that feeds the school" by deferring to the corporate advertiser's worldview and censoring, either consciously or unconsciously, even if this worldview is not in their students' best interest. This can happen directly, as when marketing of food products directly undermine nutrition education efforts in the school - however, even if there is no immediate marketing, educational materials from a corporation do not encourage children to evaluate its biases or to consider alternative points of view.
Campaign for a Commercial-Free Childhood reports that 67.2% of students are exposed to advertising for foods of minimal nutritional value in their schools, and some of that advertising is disguised as corporate-sponsored literacy, character education, and fitness educational programs. "Eighty two percent of schools have corporate ads. Advertising appears on textbook covers, on school buses, on interior and exterior school walls, gymnasiums, scoreboards, and at athletic events."