Math teacher Stacey Roshan creates video lectures that her students watch at home or on mobile devices. Photo by Mike Fritz/ PBS NewsHour Stacey Roshan, a math teacher at the Bullis School in Potomac, ...
Update: Please note that this lecture is sold out. However, Andy Brennan will participate in another cider event at The Queens Kickshaw in Astoria during NY Cider Week: www.thequeenskickshaw.com Plus, ...
CC0 Usage Conditions ApplyClick for more information. The campaign to return Mars samples to Earth is underway with the on-going collection of well-documented samples by the Perseverance rover. In ...
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