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Homeroom with Sal & Melinda Gates
Melinda Gates joins Sal to talk about the impact of the pandemic on women, equitable vaccine distribution, her solutions to empower women, and the importance of education. We’re excited to hear stories of hope and courage from Moment of Lift! Recorded live on January 12, 2021. Watch the original livestream on YouTube. For more information visit: keeplearning.khanacademy.org Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. If you’d like to contribute, please visit:https://www.khanacademy.org/donate
Overcoming a false sense of security when using Flow types
by Jared Forsyth At Khan Academy, we’ve been using Flow ever since we started using React Native in early 2017, and it’s far better than not having types. However, it’s an incomplete type system, and often large portions of code are riddled with any types. This can sometimes lead to a false sense of security, which is then burst when you get a runtime type error and think “wait, I thought flow had my back!” Our solution to this problem is “uncovered expression linting.” The end result is that, when you are reading over some code, you can be confident that flow is checking it for safety, except where explicitly indicated with “linter disable” comments. This greatly improves our ability to be confident in the soundness of our code, which frees up mental space for all the other parts of building a system. Type Coverage Now, flow has built-in “coverage…
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Arne Duncan on keeping teachers & students safe
More and more schools are allowing in-class instruction, but is enough being done for teachers and students to feel safe? Former Secretary of Education and current Managing Partner of Chicago CRED, Arne Duncan joins Sal on Homeroom. Note that there was an audio problem during the original live recording, so we had to do an edit a few minutes into the podcast. Recorded live on October 14, 2020. Watch the original livestream on YouTube Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. If you’d like to contribute, please visit:https://www.khanacademy.org/donate
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