Calculus and calculus education.

Calculus, which takes its name from the Latin word for “pebble,” is one of the most important branches of mathematics and one of the cornerstones of mathematics education. In ancient history, pebbles were used for counting, and “calculus” initially referred to that. The word now represents the method of calculation linked often with the study of change attempting to investigate motions and rates of change. From its mathematical development to the philosophy of calculus education, calculus has been fraught with rigorous debate and change.