In this study, we analyzed the quality of students' written scientific explanations found in notebooks and explored the link between the quality of the explanations and students' learning. We propose an approach to systematically analyzing and scoring the quality of students' explanations based on three components: claim, evidence to support it,…

Explored three modes of performance-based assessment: portfolios, portfolio-based simulations, and simulation exercises. Fifteen high school biology teachers completed 11 assessment activities. The primary finding is that performance-based assessments can be designed and administered, teachers can complete them, the assessment can be rated, and…