This talk focuses on exploring how Sundanese, an Austronesian language spoken in West Java, Indonesia, construes activity and static relations through grammar. The description offered here is geared towards educational concerns associated with developing literacy programs, particularly in Sundanese. Utilising axial argumentations (Martin et al., 2013; Matthiessen & Halliday, 2009; Matthiessen et al., 2018), the works presented in this talk focuses on two types of Sundanese clauses, e.g., material and relational clauses, in relation to their contribution to construe ideational meanings in texts. The talk will first revisit relevant initial descriptions of Sundanese, laying out the foundation to propose a more comprehensive, systematic descriptions from systemic functional linguistics (SFL) tradition to language description and typology (e.g., Caffarel et al., 2004; Kim et al., 2023; Martin et al., 2019; Martin et al., 2021; Martin et al., 2023). It then provides a description of material clauses in relation to their contribution to the construal of occurrence figures which in turns realise activity in register variable field. After that, the talk will continue to explore how Sundanese construe ideational meanings statically through relational clauses which is important to help uncover the realisastion of state figures in text. To exemplify these, a deconstruction of a biography text used as a teaching-learning material in current Sundanese textbook will be provided. The deconstruction highlights how Sundanese material and relational clauses build the field in relation to sequence of activities and identification of historical personae along with their significance, such as their works. This demonstrates how SFL-informed descriptions of Sundanese clauses can potentially aid the ongoing development of literacy programs in Indonesia, particularly for teaching and learning Sundanese across levels of education.