Learning Device Practicality Based on Guided Discovery Learning

Mathematics learning purposes for student is having the capability or skill to solve a mathematic’s problem, as a mean for students to sharpen accuracy, logical, critical, analytical, and creative reasoning so that problem was not a problem anymore for students. For optimal learning process, it is necessary supported by relevant learning device. This is the basis for research in mathematics learning device development like the lesson plan and student worksheet based on guided discovery learning model where learners are also learning and thingking-to solve their problems independently through the materials facilitated by teachers and teacher’s guidance. This research was development research which applied PlompModel. Based on the result, it could be concluded that guided discovery learning was practicality. Keywords— guided discovery learning, practicality