The Texas Instruments TI-15 Explorer is a calculator which is designed to encourage students in grades 3-6 to develop their problem-solving skills & begin connecting mathematic concepts with real-world situations. It helps in simplifying fractions to lowest terms automatically or step-by-step.
The calculator uses the EOS™ Equation Operating System performs operations in M-D-A-S and also allows you to view up to two entries & results simultaneously.