Can You Name 9 Important Precalculus Topics for a Strong Foundation in Calculus?

In summary, the 10 important precalculus topics that students should know very well are: Algebra (including Theory of Algebra and "College Algebra"), Geometry, Analytic Geometry, Trigonometry, Matrices and Linear Algebra, Discrete Mathematics and Finite Mathematics, Static Physics, Financial Mathematics and Theory of Interest, and Number Theory. These topics will help students build a strong foundation for calculus and save them from having to review basic concepts.
  • #1
mathdad
1,283
1
If you were to make a list of 10 important precalculus topics that students should know very well, what would they be?
Let me start by saying word problems. All students going into Calculus 1 should be able to answer Algebra 1 and 2 applications. Can you name 9 other important precalculus topics? I would like to have a list of 10, if possible.
 
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  • #2
RTCNTC said:
If you were to make a list of 10 important precalculus topics that students should know very well, what would they be?
Let me start by saying word problems. All students going into Calculus 1 should be able to answer Algebra 1 and 2 applications. Can you name 9 other important precalculus topics? I would like to have a list of 10, if possible.

Algebra, Algebra, and more Algebra - including Theory of Algebra and so-called "College Algebra". If you can't Complete the Square to derive the Quadratic Formula, you haven't done nearly enough. If you can't QUICKLY plot a line on a Cartesian Coordinate system or write the equation of a line in four or five different ways, practice some more.

Geometry - Constructions, Theorems. Nothing better for knowing what makes sense and what doesn't. This WILL organize your brain.

Analytic Geometry, but not just Conic Sections. Throw in Rational Functions (They may be part of "College Algebra", I suppose.) Functions in general. Two-dimensional spatial orientation will save you.

Trigonometry - More than you think. Memorize. Manipulate. Get a good handle on it. Don't forget Polar Coordinates!

To a lesser extent - Matrices and Linear Algebra. This will help you foresee some things that will be important and cause you to wonder about systems, rather than just individual functions.

To a lesser extent - A broad classification of "Discrete Mathematics" and "Finite Mathematics". This can be an odd collection of things. There is more going on, here, than you might think.

To a lesser extent - Static Physics. Some general idea of some of the applications of the calculus will serve you well. This will help you appreciate calculus-based physics.

To a lesser extent - Financial Mathematics, Theory of Interest. If nothing else, this should warm you up to Geometric Series. This will also prep you for early applications of differential equations. This will also force you to be more organized.

To a lesser extent - Number Theory. If nothing else, like Geometry, this will make you use your brain in a way with which you may not be accustomed. it will broaden your horizons.

Sorry, only made it to 9, but my classifications were not all that distinct. Some are downright muddled. Anyway, if you nail down these things - make them second nature - you can spend your time on the calculus, rather than on reviewing what should have been listed as prerequisite.
 
  • #3
tkhunny said:
Algebra, Algebra, and more Algebra - including Theory of Algebra and so-called "College Algebra". If you can't Complete the Square to derive the Quadratic Formula, you haven't done nearly enough. If you can't QUICKLY plot a line on a Cartesian Coordinate system or write the equation of a line in four or five different ways, practice some more.

Geometry - Constructions, Theorems. Nothing better for knowing what makes sense and what doesn't. This WILL organize your brain.

Analytic Geometry, but not just Conic Sections. Throw in Rational Functions (They may be part of "College Algebra", I suppose.) Functions in general. Two-dimensional spatial orientation will save you.

Trigonometry - More than you think. Memorize. Manipulate. Get a good handle on it. Don't forget Polar Coordinates!

To a lesser extent - Matrices and Linear Algebra. This will help you foresee some things that will be important and cause you to wonder about systems, rather than just individual functions.

To a lesser extent - A broad classification of "Discrete Mathematics" and "Finite Mathematics". This can be an odd collection of things. There is more going on, here, than you might think.

To a lesser extent - Static Physics. Some general idea of some of the applications of the calculus will serve you well. This will help you appreciate calculus-based physics.

To a lesser extent - Financial Mathematics, Theory of Interest. If nothing else, this should warm you up to Geometric Series. This will also prep you for early applications of differential equations. This will also force you to be more organized.

To a lesser extent - Number Theory. If nothing else, like Geometry, this will make you use your brain in a way with which you may not be accustomed. it will broaden your horizons.

Sorry, only made it to 9, but my classifications were not all that distinct. Some are downright muddled. Anyway, if you nail down these things - make them second nature - you can spend your time on the calculus, rather than on reviewing what should have been listed as prerequisite.

Good and informative reply.
 

FAQ: Can You Name 9 Important Precalculus Topics for a Strong Foundation in Calculus?

What is the definition of a function in precalculus?

A function in precalculus is a relation between two sets, known as the domain and range, where each element in the domain has exactly one corresponding element in the range. In simpler terms, it is a rule that assigns one input to one output.

How do you solve for the domain and range of a function in precalculus?

To find the domain of a function, you need to determine all the possible values that the input (x) can take. This can be done by looking for any restrictions, such as square roots or fractions with denominators that cannot equal zero. The range, on the other hand, is all the possible values that the output (y) can take. This can be found by graphing the function or by using algebraic methods.

What is the difference between a polynomial and a rational function in precalculus?

A polynomial function is a function that is written in the form of a sum of terms, each consisting of a variable raised to a non-negative integer power. A rational function is a function that is written as a ratio of two polynomial functions. The main difference is that rational functions may have restrictions on the domain due to the denominator not being able to equal zero. Polynomials do not have this restriction.

How do you solve for the zeros or roots of a function in precalculus?

To find the zeros or roots of a function, you need to solve for the values of x that make the output (y) equal to zero. This can be done by factoring the function and setting each factor equal to zero. You can also use techniques such as the quadratic formula or completing the square for more complex functions.

What are the three main trigonometric functions in precalculus?

The three main trigonometric functions in precalculus are sine, cosine, and tangent. These functions relate the lengths of the sides of a right triangle to its angles. The sine function is the ratio of the opposite side to the hypotenuse, cosine is the ratio of the adjacent side to the hypotenuse, and tangent is the ratio of the opposite side to the adjacent side.

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