Lei Liu

The development of a competent science, technology, engineering, mathematics, and computing (STEM+C) workforce in the era of generative artificial intelligence (GenAI) is crucial for the nation's economic growth, security, and global competitiveness. To achieve this goal, initiatives that combine a robust understanding of core STEM concepts with competence in computational thinking (CT) and AI are needed. With this goal in mind, the National Center on Generative AI for Uplifting STEM+C Educa...

In this project, the researchers will collaboratively develop, refine, and validate an artificial intelligence (AI) supported classroom assessment tool to measure middle-school students' reasoning patterns when engaging in the practice of scientific argumentation about ecosystem phenomena. The AI-supported assessments will target the measurement of key components required by the practice of scientific argumentation and support various students' reasoning patterns when students engage in argu...

The purpose of this project is to develop and validate computer-based summative assessments that focus on the science crosscutting concepts of systems and system models and structure and function. Consistent with the Next Generation Science Standards (NGSS), the assessments developed from this project will integrate these crosscutting concepts with two disciplinary core ideas (e.g. ecosystems or Earth systems), as well as science practices (e.g. developing and using models or engaging in ar...