Are virtual worlds the future of the classroom?

Virtual worlds like Whyville give kids chance to learn about science, math and themselves. Educators are taking notice.

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Roku 4: Our favorite TV streaming system gets 4K video and a remote locator

Ever lose your remote in the couch cushions? Ever wish you could stream 4K Netflix without having to use your TV's built-in app? Roku's new high-end player, the $129 Roku 4, brings these new extras to its best-in-class streaming ecosystem.

by David Katzmaier