Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on.
"It was pretty surprising," the student said.
The National Center for Education Statistics released a new report that says that math and reading scores for 9-year-olds in the United States fell to levels from two decades ago.
A rural physician in the late 19th Century, an Indiana man dabbled in mathematics and came to believe he had solved several of the world's most vexing mathematical problems.
This means, according to the expert, that other protections against the virus have to be taken in addition to the vaccine. She explains her calculations here:
On this edition of Tiempo, DACA, the Deferred Action for Childhood Arrivals, will continue after the Supreme Court ruled the Trump Administration did not properly pursue the end of the program.