STeLLA®

Product or Programme · All products and programmes
Evidence · 2 claims (1 for, 1 mixed) · 2 studies (1 causal, 1 design), q2–q3 · 1 of 2 report an effect size · 2 claims rest on one study

Description

A yearlong professional-development program developed and run by BSCS Science Learning in which science teachers analyze lessons through summer institutes and ongoing study-group sessions.

Components

• STeLLA® cost structure: Implementing STeLLA® costs approximately $1,750 per teacher for the yearlong program, covering the 2-week summer institute and eight monthly study group sessions. A 2-year leadership development program for personnel to become STeLLA® professional development leaders costs approximately $10,000 per leader but is not required. Schools and districts pay BSCS Science Learning for the program and are responsible for facilities, transportation, and videorecording costs; program fees cover teacher materials. (Science Teachers Learning from Lesson Analysis (STeLLA))
• STeLLA® professional development program: STeLLA® (Science Teachers Learning through Lesson Analysis) is a yearlong professional development program developed by BSCS Science Learning that aims to improve student science achievement by improving teachers' science content knowledge and their abilities to explain science concepts, identify the science concepts used in learning activities, and engage students in thinking about science. It combines a 2-week summer institute (60 hours) led by postsecondary science faculty with eight monthly school-based study group meetings (30 hours) in which teachers analyze videorecorded lessons. Teachers receive model lesson plans, a strategy guide, and lesson analysis protocols. (Science Teachers Learning from Lesson Analysis (STeLLA))

Claims

• STeLLA® has potentially positive effects on science achievement, with a statistically significant effect size of 0.68 and an improvement index of +25 percentile points [+M]
• An external implementation study rated the STeLLA® and comparison professional development programs similarly on provider effectiveness, pacing, engagement, and collaboration [~M]

Related Products and Programmes

• M-PLANS (Motivation - Planning Lessons to Activate eNgagement in Science)

Key Sources

• What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2021, May). Science Teachers Learning through Lesson Analysis (STeLLA®). https://ies.ed.gov/ncee/wwc/InterventionReport/716

Page metadata

Field	Value
type	product
id	stella
title	STeLLA®
description	A yearlong professional-development program developed and run by BSCS Science Learning in which science teachers analyze lessons through summer institutes and ongoing study-group sessions.
status	review
moved_from	element/stella-cost-structure, element/stella-professional-development-program
product_kind	programme
generated	by process:sweep-kinds on 2026-10-10
trust	unverified — no one has confirmed this page's content
sources	1 — what-works-clearinghouse-institute-of

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