“…Based on our previous studies (Nandiyanto et al, 2018;Nandiyanto et al, 2022), here, this research was conducted to find out the influence of collaborative practicum with experimental demonstrations using video in science subjects for Islamic boarding school students in making activated carbon biochar which is useful for the environment. This study provides additional information source on the strategies for how to improve students' comprehension, especially when facing subject difficulties in learning science for students such as in biology studies (Glorifica, 2021;Babalola, 2022;Olumorin et al, 2022;Tipmontiane & Williams, 2022;Hofifah & Sumiati, 2023;Alhassan et al, 2024;Abdussemiu, 2022;Babalola et al, 2023;Ala et al, 2022). Chemistry studies (Francis & Baba, 2023;Wirzal & Halim, 2022;Barke & Buechter, 2023;Sombria et al, 2023;Swafiyah et al, 2023).…”