One of the activities carried out by the PPM Team of the Mathematics Education Department is organizing training for teachers, especially in the field of Mathematics Studies.  The service team in this activity are Dr. R. Rosnawati, Dr. Ariyadi Wijaya, Tuharto, M.Si, Atmini Dhoruri MS, Mathilda Susanti, M.Si, and Heru Sukoco, M.Pd. One of the long-term goals of the implementation of this Service Team is the collaboration between the Mathematics Education Department represented by the Pengabdi Team and the Gunungkidul Mathematics MGMP in an effort to improve the quality of professionalism of Mathematics teachers. In detail, the specific objectives of this training were conveyed by the head of the Service Team, Dr. R. Rosnawati, who stated that the implementation of this training this time was to provide insight and knowledge of developing interactive teaching materials using Geogebra. Teaching materials allow students to learn a competency as a whole. Therefore, teachers need to develop teaching materials in an interactive and organized manner, so that students can easily understand the teaching materials and not deviate, especially during a pandemic, where learning is carried out online.

GeoGebra is software developed by Hohenwarter, who said that “GeoGebra is an interactive geometry that also offers algebric, possibilities like entering equations directly”. Geogebra is an interactive geometry and algebra software whose equations can be entered directly on the input menu. It is further stated that GeoGebra is very useful as: (1) demonstration and visualization media; (2) construction tools; (3) discovery tools; (4) communication and representation tools.

Training on developing interactive teaching materials using GeoGebra, especially for junior high school mathematics teachers, was held for two days on Tuesday, March 30, 2021 and Thursday, April 1, 2021. On the first day the activity was carried out online using the gmeet platform which was attended by 28 participants from 25 junior high schools spread across Gunung Kidul. Online activities are carried out from 08:00 to 15:00, with material related to strengthening mastery of the use of all tools in GeoGebra.

The second day of training was conducted offline while still paying attention to health protocols, checking the temperature, wearing masks, and maintaining distance. The offline training took place at the UNY Gunungkidul campus in Mijahan Hamlet, Pacarejo, Semanu District, Gunungkidul. The event began at 08:00, starting with a welcome speech and providing information related to the Gunngkidul campus by the head of the UNY Gunungkidul Campus management Dr. Slamet Suyanto, M.Ed.

During the activity, participants enthusiastically participated from the beginning to the end of the event. The materials presented on the second day were “Best Practice of Pythagoras Learning”, “Best Practice of Proving the Area of Flat Buildings by Utilizing Tools”, and “Best Practice of Proving the Area of Flat Buildings by Involving Drug and Drop”. The three materials train teachers to be able to combine all the tools in GeoGebra for the development of interactive teaching materials. Interactivity is raised by using sliders in Pythagoras proof, utilizing transformation tools to prove the area of flat buildings, and using syntax execute and buttons that allow drug and drop activities to be carried out by teachers or students when learning mathematics.

All participants followed the making of teaching materials as exemplified in the form of proving the Pythagorean theorem, proving the area of flat buildings, and teaching materials involving drug and drop. From the results of the assessment by the participants during the activity, it shows that the material presented by the Service Team is very interesting and useful for learning mathematics in the classroom. Comfortable facilities in the form of air-conditioned rooms and classrooms that can accommodate participants while still paying attention to distance and foging the classroom before, during breaks and after activities are positive assessments from the participants.  They look forward to similar training for professional development which is certainly very helpful in efforts to achieve the goal of improving student learning outcomes, especially in the field of mathematics. This assessment will provide positive energy for the Service Team to continue to provide excellent service to cooperation partners. (Tim-Sy)