https://education.ti.com/en/bulletinboard/backtoschoolcontest
PRIZE:
Grand Prize:: Choice of TI-84 Plus CE (Approximate retail value “ARV” $129) or TI-Nspire CX II (ARV $165) graphing calculator; a $100 Visa Gift card; a TI-branded shirt, pop-socket, poster, pencil bag, stickers and notepad. The ARV of the Grand Prize is up to USD $300.
Other Prizes: Five randomly selected Entrants will receive their choice of TI-84 Plus CE (ARV $129) or TI-Nspire CX II (ARV $165) graphing calculator.
Odds of winning depend upon the total number of valid entries. Total value of Sweepstakes is up to $1,125.