<p>I don’t see that trend at all with my kids having gone and going to public, catholic and religious schools, all considered college prep and highly ranked in terms of perecentage of kids going to selective schools. </p>
<p>Most kids in the above scenarios take Calculus by senior year. They tend to be in Honors Math in 8th grade which usually covers Algebra I in the traditional high school sequence though some schools use an integrated math program which makes it more difficult to pinpoint where the kids are in the old AlgI, Geom,Alg2, PreCalc, Calc sequence. Pre Calculus ends up being the catch all to make sure that the kids have their full two years of Algebra tenets along with Plane and Analytic Geometry and Trigonometry, though some of that also occurs in in Alg 2. It is tough when kids change the type of sequencing from one school to another because there are those differences.</p>
<p>But the goal is to have a full 50% or the class taking Calculus by Senior year with the ones who look like they can handle the AP exam taking AP Calc and the others taking some regular Calculus course with the advice to retake Calc in college. Those who get a score that is acceptable to the college of their choices can get up to 2 semesters of Calculus 1 and 2 credit and will resume math at the Calculus 3 (Vector Calculus) level followed by Linear Algebra. Once that critical mass of math courses has been completed, kids can pretty much take anything in undergraduate pure mathematics courses. That is the classic foundation.</p>
<p>There are kids who take extra calc or are in advanced Precalc courses that cover Calc 1 or (Calc A if using AP designation) which is traditionally Differential Calculus. Those kids who are totally ready to go directly int Calc 2 (or B), Integral Calculus can take the Calculus BC course. This is often what the difference is between Honors and Regular Precalc. The Regular is a catch all to prepare a kid for CalcAB and the other will cover the CalcA after a brief review and those kids can go on to AP CalcBC if they do well enough in that honors Precalc course. At my sons’ schools about half go on to Calc BC in a good year. It is not recommended to take Calc BC unless you are truly prepared to take it. Taught properly it is a GPA buster of a course, and most selective colleges do recognize that and will even forgive a C in this course, the only concession I have seen them make in writing. But it still is not something most schools want to see happen since a C in Calc BC usually means the kid is going to have to repeat the Calc C (Calc 3 or Vector Calculus in most college catalogs) in college, and is not going to score a 4 or 5 on the AP test. Few kids I know skip that Calc 3 in college. Even if they do well on the AP Calc BC test, if they are going into heavy duty math curriculums in college that have a rigorous math departement, and almost certainly for pure math theory majors, the math department is going to want the kid to take the Calc 3 course in house. Mainly because of the theory that is in the college courses that is almost always skipped in the high school BC math course and is not heavily covered on the AP exam so that it is possible to 5 the exam and still not get all of that theory that is essential for a strong foundation in theoretical mathematics. </p>
<p>Those kids who are not math wired or come from schools that did not have advanced math programs are usually put into a catch up sequence in math at college prep high schools and if they are willing to work hard at it or take an extra course in the summer, can end up in Calculus by senior year. However, it is not that big of a deal to be in Pre Calc or Statistics or another form of non calculus math for that 4th year. But taking BC Calculus and acing it first term is a big achievement if the student is in a school with a demonstrated strong BC Calculus course that has proven high AP test scores for their kids with nearly everyone taking the course taking the test.</p>
<p>A lot of kids take a course that is labeled Calculus in high shcool but does not adequately cover the material in the subject for them to skip over the course and go onto Calc 3 and Linear Algebra in college. Those kids are usually funneled into regular college Calc 1 and 2 classes, and even at the college level they may be construed for the Math majors (including those who are Science, Engineering, Computer, Premed) and for the Non Math majors (business, social sciences). Our local SUNY very neatly has this compartmentalization for Calculus and Statistics courses. Those who take the courses as terminal ones take one track; those who intend to take courses based on these take another.</p>
<p>When you get a junior in high school who is ready to take calculus but needs that differntial calculus, there is really no choice but to put him/her into Calc AB at best unless that student took a Calc 1 course at community college over the summer or in some summer program or self studied the material. The student can be well versed in all the precalc stuff like trig, and analytic geometry, but if the precalc course did not adequately cover Calc 1 and most of them in most schools do not, then the student has to take Calc AB since the A part of the Calcu is essential to the B.
Upon completion of that course, in senior year, the school either has run out of math courses for the student, channels the student to a non Calc course like Statistics or AP Econ, recommends the student take Calc 3 at a local community college, or takes the Calc BC course if offered at the school. Yes, the Calc BC does review the Calc B part of the Calc AB course, but it is truly not an easy subject to master, and most of the course, if taught with an eye to advanced math in college will emphasize the Calc C even with the knowledge that most of the kids will be repeating Calc 3 in college if going on in a math related field. The student has the bonus of getting a good grade in Calc BC which is truly not an easy thing to do if the previous calc course was well taught and s/he works at it.</p>