A comprehensive framework for assessing and improving teaching practices through evidence-based classroom observations CERDAS stands for Classroom Evaluation Rubric for Dimensions of Assessment and Scholarship. It is a research-based observation tool designed to evaluate the complex dimensions of effective teaching practices in educational settings. To provide educators, administrators, and schools with a reliable, valid, and practical tool for assessing teaching effectiveness that leads to meaningful professional development and improved student outcomes. Developed through collaborative research involving educators, cognitive scientists, and assessment experts, CERDAS emerged from the need for a more nuanced approach to classroom observation that goes beyond simplistic checklists and considers the multidimensional nature of effective teaching. CERDAS evaluates teaching across multiple interconnected dimensions, each critical to effective instruction: Evaluates how teachers create meaningful learning experiences that challenge students' thinking, promote deep understanding, and develop critical thinking skills. Assesses teachers' command of subject matter and their ability to present content in accurate, coherent, and pedagogically appropriate ways. Examines how teachers adapt instruction based on ongoing assessment of student understanding, needs, and learning progress. Evaluates how teachers establish and maintain a respectful, safe, and intellectually stimulating learning environment. Assesses the variety, appropriateness, and effectiveness of teaching methods used to deliver content and engage students. Examines how teachers use assessment for learning, including formative, summative, and self-assessment strategies. CERDAS employs a systematic observation process designed to provide actionable feedback while minimizing classroom disruption and observer bias. The teacher and observer discuss lesson goals, context, and focus areas for the observation. The trained observer collects evidence using the CERDAS protocol, focusing on the predetermined dimensions. The observer rates each dimension using a 5-point rubric and identifies specific strengths and areas for development. The teacher and observer discuss the findings, set goals, and create a professional development plan. CERDAS provides specific, evidence-based feedback that directly targets improvement in teaching practices. Schools can aggregate CERDAS data to identify system-wide professional development needs. CERDAS creates a culture of continuous improvement and collaborative professional learning. Research shows that improved teaching practices directly correlate with enhanced student outcomes. Successful implementation of CERDAS requires comprehensive training for both observers and teachers. This typically includes: Full implementation typically spans one academic year, requiring approximately 15-20 hours of training per participant, plus time for observations and feedback conversations. Most schools allocate an average of 3-4 hours of preparation and 1-2 hours for the observation cycle per teacher. CERDAS is grounded in research from multiple fields, including cognitive science, educational psychology, and teacher effectiveness studies. The framework draws on: Research on how learning occurs, including the importance of prior knowledge, the role of practice in skill development, and the conditions that promote transfer of learning. Decades of research identifying the classroom practices that most strongly correlate with student learning gains. Principles of transformative professional development that lead to lasting changes in teaching practice. Extensive psychometric testing has demonstrated CERDAS's validity as a measure of teaching effectiveness and its reliability when used by trained observers. Studies have shown strong positive correlations between CERDAS ratings and student achievement gains across subject areas and grade levels. Join hundreds of schools using CERDAS to improve teaching quality and student outcomes.CERDAS: Classroom Observation Tool
About CERDAS
What is CERDAS?
Our Mission
The Origin
Key Teaching Dimensions Assessed
Cognitive Engagement
Content Knowledge
Responsive Instruction
Classroom Learning Environment
Instructional Strategies
Assessment Practices
How CERDAS Works
Pre-Observation Conference
Classroom Observation
Evidence Analysis
Post-Observation Conference
Benefits of CERDAS
Focused Feedback
Data-Driven Decisions
Professional Growth
Student Success
Implementation Guide
Training Requirements
Implementation Steps
Timeline and Resources
Research Base
Theoretical Foundations
Cognitive Science
Teacher Effectiveness
Adult Learning
Validity and Reliability
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