One of the shining stars of Babytree's test-and-learn strategy is a photo-sharing feature on the site.

在“宝宝树”的尝试加学习的策略中，其中一个耀眼的星级功能是网站的图片分享功能。

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When younger kids learn computer science, they learn that it's not just a confusing, endless string of letters and numbers—but a tool to build apps, or create artwork or test hypotheses.

当年幼的孩子学习计算机科学时，他们会知道，计算机科学不仅仅是一串令人困惑、无穷无尽的字母和数字，而是一个开发应用程序、创建艺术作品或检验假设的工具。

youdao

When younger kids learn computer science, they learn that it's not just a confusing, endless string of letters and numbers—but a tool to build apps, or create artwork, or test hypotheses.

当更小的孩子学习计算机科学时，他们知道它不仅仅是一串令人困惑的、无穷无尽的字母和数字，而是一种构建应用程序、创作艺术品或验证假设的工具。

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This agile, data-driven test-and-learn methodology enabled Zynga to roll out new features every 24 hours, a previously unheard-of release frequency.

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Math game developer Sokikon, for example, references U.S. Department of Education-funded research correlating its games to progress in test scores and motivation to learn math (up to 15% improvement in one Arizona classroom).

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