Making Thinking Visible with Interactive Bulletin Boards. This is a great strategy to use for inquiry based learning and works in many grades. I have tried it with first grade, second grade, third grade, fourth grade and fifth grade. It allowed for s student's voices to be heard and seen and increased engagement. This strategy provides opportunity for critical thinking in the elementary classroom. Great for 1st grade, 2nd grade, 3rd grade, 4th grade, 5th grade and up!