Active listening and hearing are two different things. Hearing is to realize there was a noise, but to actively listen means that you were thinking and interpreting the noise. It is analytical and requires discerning what you heard and what it meant.
This can be done in groups of 2 or more as long as there are enough pieces to use.
The speaker will face away from the project. They are to verbally describe what the builder is to build being as descriptive as possible. The builder cannot ask questions.
When the speaker is done they should state what they wanted to build, and them turn around to see what was built. Now, look at it and see the differences.
Then ask other, deeper questions