---
title: "VLOG: How to Train Participants to Use Lenses During Classroom Observations"
description: Watch this vlog to learn how you can train your participants to observe classrooms effectively through the correct lens!
image: https://info.teachstone.com/hs-fs/hub/336169/file-2558119739.jpg
---

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          - [CLASS® 2nd Edition Pre-K-3rd](https://teachstone.com/class-2nd-edition-pre-k-3rd/)
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# VLOG: How to Train Participants to Use Lenses During Classroom Observations

 September 22 2016 by [Mary-Margaret Gardiner](https://info.teachstone.com/blog/author/mary-margaret-gardiner)

- [Trainer Tips](https://info.teachstone.com/blog/topic/trainer-tips)

![](https://info.teachstone.com/hs-fs/hub/336169/file-2558119739.jpg?width=519&height=300&name=file-2558119739.jpg)

In today's vlog, trainers and resident CLASS experts Mary-Margaret Gardiner and Sarah Hadden discuss the differences between CLASS "lenses" by analyzing the Observing with a Positive Lens, Observing with a Negative Lens, and Observing with an Instructional Lens slides from Toddler CLASS training (though the topics discussed can apply to other age levels). Watch to learn how you can train your participants to observe classrooms effectively!

 

[![How the CLASS Dimensions and Domains Work Together - webinar recording](https://no-cache.hubspot.com/cta/default/336169/69c1a850-0e92-4b55-b9d7-30d3bd447ace.png)](https://cta-redirect.hubspot.com/cta/redirect/336169/69c1a850-0e92-4b55-b9d7-30d3bd447ace)

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