Giving a child a four-function calculator would leave them woefully underprepared for the requirements of more advanced math and science classes. What math cla

Giving a child a four-function calculator would leave them woefully underprepared for the requirements of more advanced math and science classes. What math class requires a calculator? I still remember struggling with my Differential Equations class (got a D on the midterm), and my father said "Why is it so hard? You were always so great at arithmetic, just use a calculator!" At the time, a simple graphing calculator was high end (and out of my price range), nowadays I probably could do most of that homework with an equation solving smart app)