The decline in worldwide standing in education can, in part, be attributed the massive influx of immigrants.
GET A CLUE!!! In the late 1800’s and early 1900’s the United States was inundated with literally millions of immigrants. The already “in place” education system of the U.S.A. educated a young immigrant population to the point those “foreign” kids grew up as AMERICANS, sought and won public office, dominated the professions, lead science, became the people who fought and won TWO World Wars. They also found the cures for disease, and ways to correct physical injuries.
Common Core’s “graduates” can barely find their home state on a map of the world. The marvelous American education was born with the country and lasted only until the ultra liberals took control and destroyed it.
Depends on where they come from. Every South American and Asian student I've had has been great. Central American... not so much.