News Mock slave auctions, racist lessons: How US history class often traumatizes, dehumanizes Black students March 2, 2021 N'dea Yancey-Bragg, USA TODAY Comments Off on Mock slave auctions, racist lessons: How US history class often traumatizes, dehumanizes Black students Each year, particularly in February, racist classroom activities about slavery draw national outrage. Experts say its part of a systemic problem.