Using the CLASS Infant Dimensions Overview for Teacher Training

Quick answer

The CLASS Dimensions Overview is a laminated quick-sheet that helps teacher trainers show educators exactly what to look for during infant classroom observations and how to score each dimension accurately.

How to use the CLASS Infant Dimensions Overview in training

1. Introduce the sheet before the first observation: Hand each trainee a copy of the Dimensions Overview. Walk through the layout: dimension names, indicators, and the scoring scale. Emphasize that this is a quick reference, not the full manual. Checkpoint: Make sure everyone understands which side of the sheet corresponds to which dimension. A common mistake is trying to memorize the sheet instead of using it as a lookup tool.
2. Model a live observation while referencing the sheet: Play a short video clip of an infant classroom. Pause after two minutes and ask trainees to find the relevant dimension on their sheet. Show how you would note specific behaviors under each indicator. Checkpoint: Trainees often try to score before they have located the dimension. Remind them to keep one finger on the dimension name while watching.
3. Pair trainees for guided practice: Divide the group into pairs. Give each pair a new video segment and have them observe together, using the sheet to discuss what they see. After five minutes, ask pairs to share one dimension they found easy and one they found confusing. Checkpoint: Pairs may disagree on which indicator fits a behavior. Use the disagreement as a teaching moment to re-read the indicator wording on the sheet.
4. Review scoring anchors with the sheet: After practice observations, go over the low, mid, and high range descriptions on the sheet. Ask trainees to give an example from their practice that would fall into each range. Checkpoint: New observers often anchor on the middle score. Encourage them to use the specific behavior examples on the sheet to justify a low or high score.
5. Keep a set in the classroom for ongoing use: Once training is complete, leave one copy in each infant classroom. Teachers can pull it out during self-reflection or coaching visits to stay calibrated on the dimensions. Checkpoint: A laminated sheet left in a drawer gets forgotten. Tape it inside a cabinet door or clip it to a clipboard that stays in the observation area.

Product fact

• CLASS(R) Dimensions Overview - Infant - Set of 5 - English: This tri-fold laminated sheet is a handy reference for users of the CLASS Infant observation tool. Available in convenient packages of 5. Having five copies means each small training group or pair can work from their own sheet, reducing the need to share a single manual during observation exercises.