Don’t use student test scores to evaluate teachers
Statisticians are warning against using value-added models and student test data to evaluate teachers. Here's another published report.
Science
Printing a pink prosthetic arm for a girl, 13
Students at Washington University in St Louis used a 3D printer to make a prosthetic arm for a 13-year-old girl, making it pink at her request.
Climate change is already happening in the US
A climate change report came out on May 6, and it blames most of our climate issues on human activities like greenhouse gas emissions.
Rare type of annular solar eclipse to occur on April 29
A non-central annular solar eclipse will occur during the night in the US. It will be visible only from Antarctica and Australia.
National Green Ribbon Schools honored on Earth Day
48 schools and 9 school districts were honored today with the National Green Ribbon award from the US Department of Education.
Ag. Dept. has advice to control invasive species in Md.
Invasive species, like the stink bug or hydrilla verticillata, can cause agricultural and economic damage. Plus, it's hard to get rid of them.
Marker-assisted breeding helps feed a changing world
Fast climate change and an increasing population have forced plant breeders to use genetics to make crops stronger and better tasting.
New method can detect autism a year earlier
When it comes to autism, now identified in about 1 in every 68 children, early detection is key. The earlier, the better.
Mars opposition; lunar eclipse
Mars is at opposition Tuesday, approaches closest to Earth on this orbit on April 14. A total lunar eclipse occurs on April 14-15.
Climate change effects will worsen unless we fix it
A new report by a United Nations group says we will see worse effects of climate change unless we do something to control greenhouse gas emissions.