The Validity of a Multiple Representation of Calculus With Mathematica Learning Tool for Improving Students' Productive Thinking Abilities

In the era of fourth industrial revolution, productive thinking skills are in high demand. Creative thinking, critical and independent learning all part skills. A person’s ability to solve a problem with various alternatives can be measured range ways, is linked these abilities. Wolfram Mathematica cutting-edge technology that used visualize wide mathematical problems. The purpose this study was develop multiple representation calculus (MRC-Math) tool improve students’ After developing MRC-Math tool, experts validated device. Based on results validation, several improvements were made device, then re-validated. final validation result showed has level validity.
 Keywords: validaty, MRC-MATH, representation, calculus,