Grand Daughter needs a Calculator., Graphing, A,B,C , Symbols, Signs

[rgG]

My daughter had to have one of those TI graphing calculators, forget which model, when she was in 9th or 10th grade. She used it all through HS and now has it to college.

Sometimes Staples has them on sale, and you might be able to use one of their coupons. You might also be able to find a used one.