This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Alex Ossola: Welcome to Tech News Briefing. It's Tuesday, February 20th. I'm Alex ...

The Duolingo math app will cover basic third and fourth grade level mathematics, including multiplication, division, fractions, angles, and area measurements. A Duolingo language lesson looks more ...

At East Oakland Pride Elementary School in Oakland, California, some fifth graders are asked to arrange colorful plastic counters into two rows of four, with three off to the side. One student stacks ...