How much observation is needed?
• It depends
• Good Rule of Thumb: 3 observations
• Accurate observations require at least 10-15 minutes
• Optimally observations should be:
• 20-30 minutes
• Observations should be repeated over 2-3 days
• Across different types of academic settings (e.g., ISW in reading, small-group in math, large-group in science, etc.)