“…In the findings of this study, there are two important points. First, this study shows that the website is a learning media to support elearning; several previous studies have also shown that the website is a learning media that is often used in e-learning (Astuti et al, 2020;Dogan & Dikbıyık, 2016;Hamdunah et al, 2016;Lestari, 2019;Usta, 2011), however teachers still have difficulty applying math concepts on the website. This is because teaching math concepts is very difficult for teachers (Indriani et al, 2018;Maulydia et al, 2017), and also added to the factor of teachers who still have difficulty teaching online (Karal et al, 2015;Kebritchi et al, 2017;Wang & Ip, 2010).…”