Translanguaging and trans-semiotizing research has problematized the static view of language and argued that meaning making is a dynamic, material, social, and historical process across multiple timescales in complex eco-social systems. The second author proposed the concept of trans-semiotizing as an alternative lens to study language teaching and learning. In this autoethnographic study, the dynamic processes of online language learning and teaching are examined by analysing the semiotic resources, trans-semiotic practices, and the coordination of different semiotic resources. To capture such dynamic processes and the semiotic resources involved, the first author setup multiple cameras and used screen recording to document my teaching. Data include recordings of my computer screens, video recordings of my physical environment, facial expressions, body movements, screen shots of my social media posts, and my teaching notes. We draw on Lemke's dynamic eco-social system concept to discuss how semiotic resources are used in online language teaching and learning across different timescales.