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What is the real measure of quality teaching? CLASS measures teacher-child interactions--the most influential factor in school success


Use the Classroom Assessment Scoring System to recognize and promote quality classroom teaching


To order CLASS

Get training in CLASS

Watch the CLASS Welcome Video

Read Robert Pianta's Education Week commentary, "Measure Actual Classroom Teaching"
(registration may be required)

Read Linda Jacobson's Education Week article, "Teacher–Pupil Link Crucial to Pre-K Success, Study Says"
(registration may be required)

Read Linda Jacobson's Education Week article, "Study Casts Doubt on Value of 'Highly Qualified' Status"
(registration may be required)

Read Robert Pianta's Education Next article on the effectiveness of classroom observation

Learn about the research behind CLASS Pre-K
and CLASS K–3
(pdf download)

Read the press release


Questions?

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cover images: CLASS Pre-K Manual, CLASS forms, CLASS K-3 Manual

"Watching teachers in action, using systematic, validated observational approaches, allows trained observers to see very clearly what good teachers do to foster learning."

Robert C. Pianta, "Measure Actual Classroom Teaching" (Education Week, November 2007)

Get a free CLASS tip sheet to assist you with scoring, below

The quality of teaching that a student experiences can vary greatly, even in classrooms led by teachers with credentials that meet many states' definitions of "high quality." More important than certificates or degrees, according to Robert C. Pianta in recent Education Week and Education Next articles, are the interactions between teachers and students and what teachers do with the materials they have.

"The evidence is quite clear," Dr. Pianta points out in the Education Next article, "that it is the teacher's implementation of a curriculum, through both social and instructional interactions with children, that produces effects on student learning."

To assess the factors most directly tied to student learning, Dr. Pianta and colleagues developed the Classroom Assessment Scoring System (CLASS), a valid, reliable observational tool that objectively measures the quality of teacher–student interactions in prekindergarten through Grade 3. (Two versions are available: one for programs that end with kindergarten and one for programs that begin with kindergarten.)

CLASS has been researched for over 10 years in more than 3,000 early childhood settings and it is the only tool designed to assess classroom teaching and target efforts for improvement. It measures 10 dimensions that fall under three domains:

Emotional support

  • Positive climate
  • Negative climate
  • Teacher sensitivity
  • Regard for student perspectives

Classroom organization

  • Behavior management
  • Productivity
  • Instructional learning formats

Instructional supports

  • Concept development
  • Quality of feedback
  • Language modeling

CLASS is being used by school systems across the country to promote those elements of classroom teaching that have been shown to lead most directly to student learning.

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Get a better understanding of what CLASS measures

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Screening & AssessmentFor FacultyProfessional DevelopmentBrookes Store30% Off BooksBooks in PressNew ReleasesTransition and EmploymentSpecial EducationScreening and AssessmentReading and LiteracyMental RetardationMental HealthLearning Disabilities and ADHDInclusionFor Parents and FamiliesEducation and School PsychologyEarly InterventionEarly Childhood EducationDown SyndromeDisability/MedicalDisability/Community SupportsCommunication and LanguageChild DevelopmentBehaviorAutismHow to Get Free Shipping

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