Research Overview


The STeLLA CO2 project brought together stakeholders from three undergraduate secondary science education programs in Colorado, tasked with mentoring preservice science teachers (PSTs).

Our cross-stakeholder teams: Faculty members who taught undergraduate science courses; faculty members who taught secondary preservice education courses; and mentor teachers (MTs) who supported PSTs’ field experiences.

Our theory of change: The STeLLA CO2 project consisted of three phases. During Phase 1, we collaborated with stakeholder teams from each university to establish a shared vision for effective science teaching and learning, utilizing the STeLLA framework of teaching strategies and video-based analysis of practice. In Phase 2, we supported each team to apply their shared vision and develop plans to enhance the effectiveness and coherence of their preservice science teacher programs, incorporating the STeLLA strategies. In Phase 3, each team implemented their plans with their PSTs, addressing both their course- and field-based learning experiences.

Information graphic showing the status quo and BSCS theory of change in three phases

Review some of the papers that we have written about our work.

Research and Conference Papers

NARST 2021

Lo, A. S., Stennett, B., Hvidsten, C., & Askinas, K. (2021, April 9). Adapting and Scaling the STeLLA PD Program Conceptual Framework in Preservice Teacher Education Programs. Paper presented at 2021 National Association for Research in Science Teaching (NARST).

ASTE 2021

Lo, A. S., Hvidsten, C., Stennett, B., & Askinas, K. (2021, January 14). Developing a common vision for supporting coherence in three preservice science teacher education programs. Paper presented at 2021 Association for Science Teacher Education Conference (ASTE).

ASTE 2024

Lo, A. S., Bekins, A., Lindsay, W., Martin, A., Newberg, J., Smith, J., Gagnon, R., Knight, J., Knoblock, R., Larm, R., Scott, A., Strode, P., Stennett, B., & Cherbow, K. (2024, Jan). A practitioner’s perspective on engaging in cross-stakeholder collaborations to enhance secondary science preservice preparation programs [Themed Paper Set]. 2024 Association for Science Teacher Education International Conference, New Orleans, LA.

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