Does it work? That’s the question asked of all ed-tech tools. How do we know if their products actually help
kids learn? Do companies, educators and researchers measure and evaluate efficacy in the same way? The Institute of Education Sciences defines "efficient tool" as one that has demonstrated impact under well-supported
conditions. According to the directors of the Center for Technology in Learning at SRI International the most important
features in education (particularly ed-tech tools) are:
Efficacy requires systematic measurement. Therefore, it is necessary to accumulate evidence over time.
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