Enter for a chance to win a TI Graphing Calculator! The TI-84 Plus CE is Texas Instruments’ newest graphing calculator and it’s 30% thinner and 30% lighter than the TI-84 Plus and comes in four new colors: Measure Mint, Count on Coral, Bionic Blue and Galaxy Gray. The lightweight, yet durable design makes the TI-84 Plus CE easy to carry to and from school and after-school activities for students who are on the go.