Webinar series # 3 Department of Chemistry Education, FMIPA, UNY as a series of events to commemorate the 64th anniversary held on October 10, 2020 with the theme Strategy and Assessment of Effective Chemistry Learning in the Era of the COVID-19 Pandemic. Participants who registered themselves in the webinar series # 3 totaling 291 people with various work backgrounds and scattered from all over Indonesia.

The webinar series # 3 presents two invited speakers, namely Agus Yulianto, M.Pd. who is the chairman of PPSKI DIY as well as the Chemical MGMP of Sleman Regency and Dr. Das Salirawati, M.Si. from the Department of Chemistry Education, UNY. Agus Yulianto, M.Pd. delivered about chemistry learning strategies, while Dr. Das Salirawati, M.Si. discusses the evaluation of chemistry learning in the era of the COVID-19 pandemic.

Agus Yulianto, M.Pd. conveyed several efforts in order to be able to carry out learning activities, some of which were: (1) careful in choosing methods, media, and learning, (2) involving students to experience, (3) considering student quotas considering the length of the allocation of learning time, (4) collaborative learning to reduce student burden. One of the media that can be used is using the chemondro application which stands for chemistry on android. Chemondro is flexible so that it can be used by students anywhere and anytime, is simple, visually appealing, informative and attractive, and can be used as a means of evaluation. Educators can monitor students' progress by facilitating joint discussions after students make use of chemondro.

On the other hand, Dr. Das Salirawati, M.Si. conveyed about assessments in effective chemistry learning in the Covid-19 pandemic era. Dr. Das Salirawti, M.Si. suggested to make variations in the form of questions and assignments to students, it could be in the form of making videos or other interesting media, for example by asking students to make songs about the learning material being studied. Asking students to change the lyrics of a song with the concepts that have been explained, the educator can assess the students' skills in how many concepts can be made in the song. As in the realm of attitude, educators can assess honesty and responsibility in terms of arranging assigned tasks. The educators can also assess students' disciplinary attitudes regarding their presence in online learning activities.