--- title: Teachstone Blog | CLASS & Effective Teaching Strategies | Reliability and Certification (4) description: Reliability and Certification | Explore resources for teachers, coaches, and observers and learn about CLASS and teacher-child interactions on our blog. (4) --- [![Teachstone Logo](https://info.teachstone.com/hs-fs/hubfs/TS_Color_Regist-3-1.png?width=150&height=67&name=TS_Color_Regist-3-1.png "Teachstone Logo")](https://www.teachstone.com/) - [Store](http://store.teachstone.com/) - [Support](https://teachstone.com/support) - [Login](http://dashboard.teachstone.com/) - The CLASS Framework - [What is CLASS](https://teachstone.com/class/) - [CLASS 2nd Edition](https://teachstone.com/class-2nd-edition/) - [For Leaders](https://teachstone.com/leaders/) - [For Observers](https://teachstone.com/for-observers/) - [For Coaches](https://teachstone.com/for-coaches/) - [For Educators](https://teachstone.com/for-educators/) - [For CLASS Affiliates](https://teachstone.com/for-class-affiliates/) - [For Head Start](https://teachstone.com/headstart/) - [Research](https://teachstone.com/research/) - Products and Trainings - [Getting Started with CLASS](https://teachstone.com/getting-started-with-class/) - [CLASS® 2nd Edition Infant-Toddler](https://teachstone.com/class-2nd-edition-infant-toddler/) - 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Coach Trainings & Certification - [CLASS Group Coaching](https://teachstone.com/class-group-coaching/) - [1-1 Video Coaching](https://teachstone.com/1-1-video-coaching/) - [Instructional Support for Coaches](https://teachstone.com/coach-feedback/) - [Interaction Essentials Trainer Program](https://teachstone.com/interaction-essentials-trainer-program/) - [Professional Development for Educators](https://teachstone.com/professional-development-for-educators/) - [Banking Time: Investing in Relationships](https://teachstone.com/banking-time/) - [CDA with CLASS](https://teachstone.com/cda-programs/) - [Instructional Support Essentials for Teachers](https://teachstone.com/instructional-support-essentials-for-teachers/) - [Interaction Essentials for Educators](https://teachstone.com/interaction-essentials-for-educators/) - [CLASS Supplies](https://teachstone.com/class-supplies/) - [CLASS Dictionary](https://store.teachstone.com/class-dictionary/) - [CLASS Interactions Dimension Guide](https://store.teachstone.com/class-dimensions-guide/) - 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[CLASS 2nd Edition Intro to Interactions for Educators](https://teachstone.com/intro-to-interactions-for-educators/) - [CLASS Environment](https://teachstone.com/class-environment/) - [CLASS Environment Observer Training](https://teachstone.com/class-environment/#environment-observer-training) - [CLASS Environment Overview for Educators](https://teachstone.com/class-environment/#environment-educator-training) - Observer Training & Certification - [CLASS Train-the-Trainer Affiliate Program](https://teachstone.com/class-train-the-trainer/) - [CLASS Affiliate Trainer Recertification](https://store.teachstone.com/trainer-recertification-new/) - [CLASS 2nd Edition Measurement Trainer Program](https://teachstone.com/class-2nd-measurement-trainer/) - [CLASS Observer Recertification](https://store.teachstone.com/observer-recertification-new/?showHidden=true) - [CLASS Observation Certification Training](https://teachstone.com/class-observation-training/) - [Transition Supports](https://teachstone.com/class-observer-supports/) - [CLASS Group Coaching Transition Training](https://teachstone.com/class-group-coaching-transition-training/) - [CLASS 2nd Edition Observer Transition Training](https://teachstone.com/class-2nd-observer-transition-training/) - [CLASS 2nd Edition Trainer Transition Training](https://teachstone.com/class-2nd-edition-trainer-transition-training/) - [CLASS Trainer Add-Ons](https://teachstone.com/trainer-add-ons/) - [Program Services & Support](https://teachstone.com/program-services-support/) - [CLASS Coding Support](https://teachstone.com/coding-support/) - [CLASS Quality Improvement Subscription **New!**](https://teachstone.com/myteachstone/) - [CLASS Observation Services](https://teachstone.com/class-observation-services/) - [Custom Events by Teachstone](https://teachstone.com/custom-events/) - [Meaningful Interactions at Home](https://teachstone.com/meaningful-interactions-at-home/) - Coach Trainings & Certification - [CLASS Group Coaching](https://teachstone.com/class-group-coaching/) - [1-1 Video Coaching](https://teachstone.com/1-1-video-coaching/) - [Instructional Support for Coaches](https://teachstone.com/coach-feedback/) - [Interaction Essentials Trainer Program](https://teachstone.com/interaction-essentials-trainer-program/) - [Professional Development for Educators](https://teachstone.com/professional-development-for-educators/) - [Banking Time: Investing in Relationships](https://teachstone.com/banking-time/) - [CDA with CLASS](https://teachstone.com/cda-programs/) - [Instructional Support Essentials for Teachers](https://teachstone.com/instructional-support-essentials-for-teachers/) - [Interaction Essentials for Educators](https://teachstone.com/interaction-essentials-for-educators/) - [CLASS Supplies](https://teachstone.com/class-supplies/) - [CLASS Dictionary](https://store.teachstone.com/class-dictionary/) - [CLASS Interactions Dimension Guide](https://store.teachstone.com/class-dimensions-guide/) - [CLASS Manuals](https://store.teachstone.com/class-2nd-edition-pre-k-3-manual-options/) - [CLASS Observation Score Sheets](https://store.teachstone.com/score-sheets/) - [CLASS Strategy Cards](https://store.teachstone.com/class-strategy-cards/) - [CLASS Support Kits](https://teachstone.com/class-support-kits/) - Resources - [Resource Library](https://teachstone.com/resources/) - [Blog](https://info.teachstone.com/blog) - [Blog (Spanish)](https://info.teachstone.com/blog-en-esp?hsLang=en-us) - [Blog (French)](https://casiope.org/categorie/class/) - [Upcoming Events](https://teachstone.com/upcoming-events/) - [Community](https://community.teachstone.com/home) - [About](https://teachstone.com/about-teachstone/) - [Who We Are](https://teachstone.com/about-teachstone/#whoweare) - [Our Impact](https://teachstone.com/our-impact/) - [Partners](https://teachstone.com/our-partners/) - [Careers](https://teachstone.com/careers/) - [Certified B-Corp](https://teachstone.com/certified-b-corporation/) - [News](https://teachstone.com/news/) - [Connect with a Rep](https://info.teachstone.com/contact-a-teachstone-representative?hsLang=en-us) - [Store](http://store.teachstone.com/) - [Support](https://teachstone.com/support) - [Login](http://dashboard.teachstone.com/) # Reliability and Certification (4) Filter By Topic Reliability and Certification (4) - [Announcements (83)](https://info.teachstone.com/blog/topic/announcements) - [Applying Science of Reading (1)](https://info.teachstone.com/blog/topic/applying-science-of-reading) - [Birth to Five (1)](https://info.teachstone.com/blog/topic/birth-to-five) - [CDA (9)](https://info.teachstone.com/blog/topic/cda) - [CLASS 2nd Edition (1)](https://info.teachstone.com/blog/topic/class-2nd-edition) - [CLASS Connect (1)](https://info.teachstone.com/blog/topic/class-connect) - [CLASS in Practice (121)](https://info.teachstone.com/blog/topic/class-in-practice) - [Coach Tips (151)](https://info.teachstone.com/blog/topic/coach-tips) - [COVID-19 (26)](https://info.teachstone.com/blog/topic/covid-19) - [FAQs (107)](https://info.teachstone.com/blog/topic/faqs) - [For Parents (22)](https://info.teachstone.com/blog/topic/for-parents) - 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[Reliability and Certification (68)](https://info.teachstone.com/blog/topic/reliability-and-certification) - [Research (129)](https://info.teachstone.com/blog/topic/research) - [Social-Emotional Learning (27)](https://info.teachstone.com/blog/topic/social-emotional-learning) - [Teacher Preparation (14)](https://info.teachstone.com/blog/topic/teacher-preparation) - [Teacher Spotlight (2)](https://info.teachstone.com/blog/topic/teacher-spotlight) - [Teacher Tips (242)](https://info.teachstone.com/blog/topic/teacher-tips) - [Trainer Tips (94)](https://info.teachstone.com/blog/topic/trainer-tips) [Return to Blog](https://info.teachstone.com/blog) [![](https://info.teachstone.com/hubfs/Use%20Your%20Manual.jpg)](https://info.teachstone.com/blog/use-your-class-manual-every-time?hsLang=en-us) ## [Use Your CLASS® Manual Every Time!](https://info.teachstone.com/blog/use-your-class-manual-every-time?hsLang=en-us) By [Mary-Margaret Gardiner](https://info.teachstone.com/blog/author/mary-margaret-gardiner) We’ve all heard at some time or another: “I’ve done hundreds of observations; I don’t need my manual!” In a recent training, one of my participants ... [![](https://info.teachstone.com/hubfs/Knowledge%20Test%20Pic.jpg)](https://info.teachstone.com/blog/i-failed-the-knowledge-test.-what-now?hsLang=en-us) ## [I Failed the Knowledge Test. What Now?](https://info.teachstone.com/blog/i-failed-the-knowledge-test.-what-now?hsLang=en-us) By [Lisa Criss](https://info.teachstone.com/blog/author/lisa-criss) Here's the scenario: you became an Affiliate Trainer within the past year. It's now time for you to recertify. This recertification is different from ... [![](https://info.teachstone.com/hubfs/claire-anderson-60670.jpg)](https://info.teachstone.com/blog/how-i-used-my-class-knowledge-during-jury-duty?hsLang=en-us) ## [How I Used My CLASS Knowledge During Jury Duty](https://info.teachstone.com/blog/how-i-used-my-class-knowledge-during-jury-duty?hsLang=en-us) By [Gina Gates](https://info.teachstone.com/blog/author/gina-gates) We recently saw a comment on the CLASS Community Facebook Group from one of our MMCI Instructors and CLASS Observers, Candice Smith, and this is what ... [![](https://info.teachstone.com/hubfs/Toddler%20Tri-fold.png)](https://info.teachstone.com/blog/tri-fold-double-edged-the-laminated-resource-trainers-love-to-hate?hsLang=en-us) ## [Tri-Fold, Double Edged: The Laminated Resource Trainers Love to Hate](https://info.teachstone.com/blog/tri-fold-double-edged-the-laminated-resource-trainers-love-to-hate?hsLang=en-us) By [Daniel LaCava](https://info.teachstone.com/blog/author/daniel-lacava) CLASS observers have a limited arsenal when it comes to conducting observations and assigning scores: CLASS score sheets for noting and sorting ... [![](https://info.teachstone.com/hubfs/classroom-low-scoring.jpg)](https://info.teachstone.com/blog/supporting-class-coding-in-chaos?hsLang=en-us) ## [How To Support CLASS Coding in Chaos](https://info.teachstone.com/blog/supporting-class-coding-in-chaos?hsLang=en-us) By [Yvonne Godber](https://info.teachstone.com/blog/author/yvonne-godber) While it’s gratifying and inspiring to observe warm, nurturing, and instructionally dynamic classrooms, unfortunately that’s not always the case. I ... [![](https://info.teachstone.com/hubfs/irene-davila-45777.jpg)](https://info.teachstone.com/blog/the-color-green-and-the-class-coding-process?hsLang=en-us) ## [What the color green has to do with assigning Low, Mid, and High ranges to CLASS indicators](https://info.teachstone.com/blog/the-color-green-and-the-class-coding-process?hsLang=en-us) By [Yvonne Godber](https://info.teachstone.com/blog/author/yvonne-godber) What does the color green have to do with assigning Low, Mid, and High ranges to CLASS indicators? Well, in all honesty, not much, but I’m hoping an ... [![](https://info.teachstone.com/hubfs/testingtimeline.png)](https://info.teachstone.com/blog/dont-let-reliability-testing-turn-into-a-hail-mary-pass?hsLang=en-us) ## [Don’t Let Reliability Testing Turn Into a Hail Mary Pass](https://info.teachstone.com/blog/dont-let-reliability-testing-turn-into-a-hail-mary-pass?hsLang=en-us) By [Tracy Jones](https://info.teachstone.com/blog/author/tracy-jones) I have a confession to make. I loathe football. Yes, it’s true. I have spent my life surrounded by football-watching brothers, cousins, sons, and ... [![](https://info.teachstone.com/hubfs/roughhousing.jpg)](https://info.teachstone.com/blog/how-does-roughhousing-impact-behavior-management-scores?hsLang=en-us) ## [How Does Roughhousing Impact Behavior Management Scores?](https://info.teachstone.com/blog/how-does-roughhousing-impact-behavior-management-scores?hsLang=en-us) By [Mary-Margaret Gardiner](https://info.teachstone.com/blog/author/mary-margaret-gardiner) Dear Master Coders, I recently heard about risk competency and big body play at a local teaching conference. I have spent time considering this in ... [![](https://info.teachstone.com/hubfs/open-ended-at-snack.png)](https://info.teachstone.com/blog/how-to-deal-with-ambiguous-questions?hsLang=en-us) ## [Open or Closed-Ended? How to Deal with Ambiguous Questions](https://info.teachstone.com/blog/how-to-deal-with-ambiguous-questions?hsLang=en-us) By [Sherilyn Crump](https://info.teachstone.com/blog/author/sherilyn-crump) The scenario: A teacher is sitting with several children having snack, and the teacher asks a student, “What are you going to be for Halloween?” Is ... [![](https://info.teachstone.com/hubfs/playground.png)](https://info.teachstone.com/blog/to-code-or-not-to-code-new-rules-for-the-playground?hsLang=en-us) ## [To Code or Not to Code: New Rules for the Playground](https://info.teachstone.com/blog/to-code-or-not-to-code-new-rules-for-the-playground?hsLang=en-us) By [Sarah Hadden](https://info.teachstone.com/blog/author/sarah-hadden) This morning, we received an email from an observer who had a great question about whether or not it’s OK to code interactions on the playground. ... - [Prev](https://info.teachstone.com/blog/topic/reliability-and-certification/page/3) - [2](https://info.teachstone.com/blog/topic/reliability-and-certification/page/2) - [3](https://info.teachstone.com/blog/topic/reliability-and-certification/page/3) - [4](https://info.teachstone.com/blog/topic/reliability-and-certification/page/4) - [5](https://info.teachstone.com/blog/topic/reliability-and-certification/page/5) - [6](https://info.teachstone.com/blog/topic/reliability-and-certification/page/6) - [Next](https://info.teachstone.com/blog/topic/reliability-and-certification/page/5) ## Subscribe to the Teachstone Blog [![Teachstone Logo](https://info.teachstone.com/hs-fs/hubfs/TS_Color_Regist-3-1.png?width=150&height=67&name=TS_Color_Regist-3-1.png "Teachstone Logo")](https://www.teachstone.com/) - - - [About](https://teachstone.com/about-teachstone/) - [About Teachstone®](https://teachstone.com/about-teachstone/) - [Our Partners](https://teachstone.com/our-partners/) - [Careers](https://teachstone.com/careers/) - [Resources](https://teachstone.com/resources/) - [Support](https://teachstone.com/support) - [Contact Sales](https://info.teachstone.com/contact-a-teachstone-representative?hsLang=en-us) - [InterAct CLASS Summit](https://teachstone.com/interact-class-summit/) - [CLASS en español](https://teachstone.com/collecion-de-productos-en-esp/) - [CLASS en Français](https://teachstone.com/class-en-francais/) - [Privacy Policy](https://teachstone.com/privacy-policy/) - [Terms of Use](https://teachstone.com/terms-conditions/) - [Web Accessibility](https://teachstone.com/web-accessibility/) - [Permissions](https://teachstone.com/permissions/) © 2026 Teachstone, Inc