Sitti has a PhD in the uses of the Internet for teacher professional development and mathematics teaching and learning.
She has worked on research projects in collaboration with the World Bank and has led a four-year project funded by the Australian Department of Foreign Affairs and Trade (DFAT) to promote mathematics education in West Nusa Tenggara, Indonesia.
Research interest includes the use of technology to enrich mathematics learning, mathematics lesson design, and effective teacher professional development (with or without technology).