Stimulate your childs interest in problem solving with this Texas Instruments TI-15 explorer elementary calculator. The impact-resistant cover cushions your device during accidental falls or bumps, and a 2-line display helps students explore math and science concepts in the classroom. This Texas Instruments TI-15 explorer elementary calculator has an internal scoreboard so you or a teacher can access progress, and flash card functionality provides helpful hints for wrong answers. 2-line display shows results up to 11 digits per line. Traditional multiplication, subtraction, addition and division support basic calculations. Converts improper fractions, fractions, mixed numbers, decimals and percent. Impact-resistant cover protects against damage during falls. Powered by battery and solar power for dual-power convenience.