Communities of Learners Often Create Conceptual Artifacts as They Study

question 11

Multiple Choice

Communities of learners often create conceptual artifacts as they study a topic. Which one of the following is the best example of such an artifact?

• A) Students jointly write a one-act play based on a short story they've been reading.
• B) Students write their own, individual summaries of what they think the class has accomplished each week.
• C) Students jointly create a board game that puts the economic principle of supply-and-demand into action.
• D) Students jointly create a diagram that helps them understand the water cycle. They occasionally revise it as they learn more about evaporation and condensation.

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Definitions:

Poly-A Tail

A stretch of adenine nucleotides added to the 3' end of a newly synthesized pre-mRNA molecule in eukaryotic cells, protecting the mRNA from degradation and aiding in its export from the nucleus.

DNA Molecule

The carrier of genetic information, consisting of two long chains of nucleotides twisted into a double helix.

Promoter

In DNA, a sequence that is a site where RNA polymerase binds and begins transcription.

Codons

Sequences of three nucleotides in mRNA that specify the addition of a specific amino acid or the termination of translation.