Design for Learning- Principles, Processes, and Praxis, 2021a

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https://edtechbooks.org/-kzST.
Product Builds
Product builds are any three-dimensional representation of an idea
that an audience and designer can manipulate and experience. They
can be as complex as working versions of a tool, 3-D prints, or even
Lego/fabric-based lower fidelity builds. They can also be of varying
levels of fidelity, as initial product builds may include a few layers of
the design (such as the physical shape and visual
coloring/representation). However, later prototypes can have
increasing more fidelity, including prototyping various versions of
audio, music, content, and dynamic interactivity to test how effective
each new design element is.
Product builds are seen as an essential design activity because it
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