California's Department of Education is working on a new framework for K-12 mathematics that discourages gifted students from enrolling in accelerated classes that study advanced concepts like calculus. The draft of the framework is hundreds of pages long and covers a wide range of topics. But its overriding concern is inequity. The department is worried that too many students are sorted into different math tracks based on their natural abilities, which leads some to take calculus by their senior year of high school while others don't make it past basic algebra. The department's solution is to prohibit any sorting until high school, keeping gifted kids in the same classrooms as their less mathematically inclined peers until at least grade nine.
"All students deserve powerful mathematics; we reject ideas of natural gifts and talents," reads a bulletpoint in chapter one of the framework. "The belief that 'I treat everyone the same' is insufficient: Active efforts in mathematics teaching are required in order to counter the cultural forces that have led to and continue to perpetuate current inequities."
Reason
Here's what the draft actually says about accelerating algebra to get students to calculus in senior year:
Many students, parents, and teachers encourage acceleration in grade eight (or sooner in some cases) because of an incorrect conclusion that Calculus is an important high-school goal. This approach relies of the false belief that Algebra I must be taken in grade eight in order for the student to reach a calculus class in grade twelve. This framework clarifies these misunderstandings in three ways:
- First, because of the rigorous nature of the CA CCSSM grade-eight standards, a three-year high-school pathway can be sufficient preparation for a calculus class in grade twelve, as outlined in the pathway graphic on page x (to be decided by formatting)
- Second, the push to calculus in grade twelve is itself misguided. In Mathematical Association of America (MAA) and NCTM clarify that “...the ultimate goal of the K–12 mathematics curriculum should not be to get into and through a course of calculus by twelfth grade, but to have established the mathematical foundation that will enable students to pursue whatever course of study interests them when they get to college” (2012). The push to enroll more students in high-school calculus often leads to shortchanging important content that does not lead directly to success in the advanced placement calculus syllabus, which is significantly procedural. “In some sense, the worst preparation a student heading toward a career in science or engineering could receive is one that rushes toward accumulation of problem-solving abilities in calculus while short-changing the broader preparation needed for success beyond calculus” (Bressoud, Mesa, and Rasmussen 2015).
- Finally, the results do not support the push for more and more students to take calculus in high school: About half of the students taking Calculus I in college are repeating their high school course, and many others place into a pre-calculus course when they enter college (Bressoud, Mesa, and Rasmussen 2015).
This makes sense when I relate it to my personal experience in high school and university mathematics. I took the advanced stream in high school, where we were introduced to calculus in Year 12, if I remember correctly. It was, as this paper describes, "significantly procedural": we learned how to do differentiation and integration, but we weren't taught what it meant. When I took mathematics (and programming, and analog electronics) at university, we had to apply calculus to real world engineering problems. The only useful things that I retained from high school was the notation and the handful of rules I'd learned by rote. (Power rule, chain rule, open vs. closed limits, etc.) I had to develop my intuitive understanding of calculus at university.
Without an intuitive understanding of mathematics, it's useless, because you won't recognise calculus solutions to problems out in the real world. Teaching students the procedure of solving calculus problems makes them very good at solving neat, pre-made calculus problems you put in front of them. but it doesn't teach them how to construct the calculus problem in the first place.
As an example of a good introduction to calculus, which doesn't gloss over the "why", I think 3Blue1Brown's
Essence of Calculus series does an excellent job of explaining the reasoning behind calculus and gives you and intuitive sense of when you might need this kind of mathematics. The series itself is very short, but the classroom time and study required to actually internalise these ideas would be much longer.
Personally, I took calculus in Year 12 despite the fact that I didn't do any accelerated maths in middle school. The education system here just didn't offer it. I was taught maths in a heterogeneous class up until senior school, at which point students chose one of three different streams: easy maths, hard maths or a double dose of hard maths. So I can say from experience that there is nothing wrong with making middle school maths heterogeneous, since I've lived it and it seemed to work fine. It didn't stop anyone from becoming scientists or engineers.
(Different country, obviously, but Year 12 is still Year 12, and middle school is still middle school.)