This calculator helps us do that. It captures children's interest and enhances their ability to solve problems, reason and make connections. Giles, who is a mathematics specialist for grades K-12 in the Jordan School District in Sandy, Utah, says she believes using the calculator helps students' reasoning abilities. Using the calculator, students also can enter fractions and perform the full range of arithmetic operations, such as multiplying, dividing, adding, subtracting and finding square roots. The TI-80 features superior data analysis and graphing features.
Students can perform, quadratic, cubic and quadratic polynomial regressions.
They also can determine probability using random number generators, permutations, combinations and factorials. Shading features show intersections of function values, including vertical, horizontal and diagonal shading patterns. Automatically plot selected functions in the display window with one key press. Trace using cursor keys along any of the graphed functions, displaying X and Y coordinate values simultaneously. Save, graph and analyze up to three parametric equations, using trace and zoom features.