How are precalculus and analytical geometry different?

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Discussion Overview

The discussion revolves around the differences between precalculus and analytical geometry, particularly in the context of preparation for calculus courses. Participants share their experiences and concerns regarding the sufficiency of analytical geometry as a foundation for calculus and the topics they felt were necessary for their understanding.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Homework-related

Main Points Raised

  • One participant expresses stress about their preparedness for calculus after taking analytical geometry and trigonometry in high school, questioning if analytical geometry is a sufficient substitute for precalculus.
  • Another participant asks about specific topics that others felt were missing from their high school education that impacted their calculus understanding.
  • A participant mentions that their precalculus book covers much of what they learned in high school, but they felt unprepared when limits were introduced in class.
  • One contributor notes that the official AP Calculus course description does not list limits as a prerequisite, reflecting on their own high school experience without a separate precalculus course.
  • Another participant states that limits were not introduced until their first calculus course, emphasizing the expectation to be familiar with the unit circle and algebra techniques beforehand.
  • A participant asserts that limits are typically the first topic in calculus courses, suggesting that precalculus may cover them but not in depth.
  • One participant inquires about the relevance of trigonometry and analytical geometry material in calculus, expressing concern about the utility of their current precalculus course.
  • Another participant clarifies that precalculus includes analytic geometry and that calculus courses will utilize concepts from both subjects.
  • One participant raises a concern about the potential weaknesses in high school precalculus courses, suggesting that repeated exposure at higher education institutions could be beneficial.

Areas of Agreement / Disagreement

Participants express differing views on the sufficiency of analytical geometry as a preparation for calculus, with some suggesting it is adequate while others highlight gaps in knowledge. The discussion remains unresolved regarding the effectiveness of high school precalculus courses and their content.

Contextual Notes

Participants mention varying experiences with precalculus and calculus courses, indicating potential limitations in high school curricula and the importance of foundational topics like limits and algebra techniques.

Eclair_de_XII
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I'm really stressed out at where I should be in my college career. In high school, I had taken trigonometry and analytical geometry. But when I went to college and took calculus, I was completely dumbfounded on what was being taught. I felt like I should have known the material. Google tells me analytical geometry and precalculus are not all that different. I think I should have been prepared for the course, yet I wasn't. That's why I'm taking a precalculus course right now.

Is analytical geometry a sufficient substitute for precalculus?
 
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Which topics did you feel you should have covered in high school, but didn't? Or, which topics did you have trouble with in calculus?
 
The precalculus book I have now looks like it's covered much of the material I've learned in high school.

The first day of class, we jumped straight into limits. I don't really know what subjects I felt I needed to cover in high school, though. I did do excellent in the class, though.
 
The official AP Calculus course description gives limits as one of the first topics, and does not mention limits in the prerequisites for the course. This fits with my experience with high school and college math more than 40 years ago. Back then we didn't have a separate "precalculus" course, just two years of algebra, a year of plane geometry, and a year of trig and analytic geometry.
 
I wasn't exposed to limits until my first calculus course. Typically you're expected to be comfortable with the unit circle (you should know what \cos 0 is, etc.), and algebra techniques (logarithm rules, square roots, exponentials, etc.).
 
Limits are nearly always the first topic covered in calculus 1. They're covered in pre-calculus courses sometimes, but typically aren't seen until actually reaching calculus in my experience. Limits really are the foundation of what calculus is, so it's a logical starting point for it. A brief (as in one class period) review of the more important aspects of algebra and trig is sometimes covered as well, but this is quite cursory and it's nothing new.

I never took an official pre-calculus course. I took Algebra I, Geometry, Algebra II, College Algebra, Trigonometry, and then Calculus and Analytic Geometry I...etc.
 
Another question: How much of the material I will be learning in trigonometry and analytical geometry will I be using in calculus?

I'm taking a precalculus course right now, and I don't want my knowledge to go to waste.
 
Pre-Calculus contains Analytic Geometry. Calculus 1,2,3, will use all of Analytic Geometry from Pre-Calculus.
 
Thanks.
 
  • #10
A possible problem is that some Pre-Calculuses in a high school might be weak in some topics; in fact such courses may contain weaknesses at higher institutions also. A high schooler seeing himself through the course the first time maybe won't learn enough of the material too well but still pass with C or B. Repeated exposure at the community college or university would be a strong benefit.
 

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