Your example I categorized as arithmetic because it’s discussed before 5th grade arithmetic (USA).
While my “algebra” example can be categorized as “harder” arithmetic or “disguised arithmetic”, it is the type of question kids don’t see until Algebra I. The question sets up a “relationship” and the student solves it from there. Arithmetic does not stress relationships between quantities. Algebra does. He can either use system of equations or adhoc common sense reasoning.
I’m not saying that. I’m saying we’re assigning more credit to algebra for uninterested students without proof of its benefits.
Some of the response articles are mischaracterizing it as “society giving up on algebra.”
First off, millions of students would still take the full 2 years of Algebra I & II.
The difference is that some students substitute something else that’s academically challenging. Could be linguistics. Or legal documents analysis. I’m sure our collective imagination could come up with quality alternatives besides “art” and “physical education”.
The discussion about the merits of algebra for non-motivated students assumes knowledge we do not have. It would require an experiment that would test 3 groups:
group 1: 8th graders right before they start their first day of Algebra 1
group 2: adults that have never taken algebra but have equivalent IQ to group 3
group 3: the 86% of teachers that failed that math portion of teaching certification exam (as a representative of those that have taken Algebra II and forgotten it)
We then create various test questions that do not look like algebra questions but test abstract reasoning.
To be clear, we are not testing the folks who already understand algebra, retained most of it, and appreciate it. (These include most posters in this thread.) Such a group would demolish the 3 mentioned above. I’m not sure how to design good questions that are unfamiliar to all groups and test abstract reasoning. Analyzing and categorizing pictures of knots? Using LEGOs and have the test candidates look at a picture and estimate minimum # needed to duplicate it?
If such an experiment has not been done, how can anyone say that “algebra helps with abstract thinking later in life even if it’s not used” ?
There is no proof.
Even Daniel Willingham had to use a weasle word “possibility”:
“In other words, Hacker overlooks the possibility that the mathematics learned in school, even if seldom applied directly, makes students better able to learn new quantitative skills.”
Consider:
"The study of 1000 Latin words for human anatomy is part of a medical doctors’ training.
Income charts show doctors earn six figure salaries.
Therefore, we have concrete evidence that children should study 1000 Latin human anatomy word because it will lead to six-figure salaries.
Do a search and replace: (Latin/algebra), (doctors/engineers)
"The study of algebra is part of a engineers’ training.
Income charts show they earn salaries above the median.
Therefore, we have concrete evidence that children should study algebra because it will lead to salaries above the median.
If the first premise (Latin) is flawed, why not the second one (algebra)?
Again, we’re not talking about quantitative-skill workers that already understand algebra as thinking tools in their career.
We are talking about the unmotivated students that muck through algebra without understanding, forget it, never use it again. Are we using their time effectively? (Doesn’t the real answer point back to the social experiment we haven’t done yet?)
I propose that we can only say the following statement:
*“We have no definitive proof that the people who struggle through algebra, pass the tests, and then forget it are better off in the long run. However in absence of actual evidence, we make them study it as a precautionary measure.” *
At least that statement is more defensible. It’s more accurate of what we actually know about the benefits of algebra for unmotivated students.