Mathematical Architects

Calculus

The blueprint comes alive. Scholars stop measuring static shapes and start measuring change itself — the slope of a curve at a single instant, and the area swept beneath it.

Calculus is the mathematics of change and accumulation. Two ideas carry the whole course: the derivative \(f'(x)=\displaystyle\lim_{h\to0}\frac{f(x+h)-f(x)}{h}\), which measures an instantaneous rate, and the integral \(\displaystyle\int_a^b f(x)\,dx\), which accumulates a total. The Fundamental Theorem of Calculus reveals they are inverse operations, binding the two halves of the course into one structure. This is a collegiate Calculus I–II sequence organized on the College Board AP Calculus AB/BC Course & Exam Description — AB covers Calculus I; BC adds the Calculus II material (series and parametric, polar, and vector calculus).

5 Modules
AB & BC Both Tracks
8 AP Units
Early May AP Exam

Concepts in Action

Every idea in calculus starts with one slippery question: what value is a function heading toward? Drive the controls in the Limit Explorer and watch the answer emerge.

Limit Explorer · Module 1

The limit \(\displaystyle\lim_{x\to c} f(x)\) asks where the outputs of \(f\) are headed as \(x\) creeps toward \(c\) — not what value lands at \(c\). Slide a point in from the left and the right and watch the two approaches either agree (the limit exists) or split (it does not).

Open the Limit Explorer →
Why it matters. The limit is the foundation under everything that follows. The derivative is a limit of slopes; the definite integral is a limit of sums. Master the idea of an approach — left side, right side, and the gap at the point itself — and both halves of calculus become variations on a single theme.
M1 · Limits & Continuity M2 · The Derivative M4 · The Definite Integral M5 · Series (BC)

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Module by Module

Five modules, sequenced from the limit through the Fundamental Theorem and into the BC extensions. Chips show the AP Calculus units each module develops; BC marks content beyond the AB exam.

Module 01

Limits & Continuity

AP Unit 1

Big idea: a function can aim squarely at a value it never reaches — and the limit, the bedrock of all of calculus, captures exactly where it is headed.

Topics

Limits, graphically & numerically — one-sided and two-sided limits, and when a limit fails to exist.

Evaluating limits — the limit laws, algebraic techniques, the Squeeze Theorem, and limits at infinity.

Continuity — the three-part definition, classifying discontinuities, and the Intermediate Value Theorem.

You'll be able to…

  • Estimate a limit from a graph or a table of values.
  • Evaluate limits with the limit laws and resolve \(\tfrac{0}{0}\) forms by factoring or rationalizing.
  • Test continuity at a point with the three-part definition and classify any break.
  • Find horizontal asymptotes by evaluating limits at \(\pm\infty\).

Worked example

Resolve a 0/0 limit Evaluate \(\displaystyle\lim_{x\to3}\frac{x^2-9}{x-3}\). Direct substitution gives \(\tfrac{0}{0}\); factor first: \[ \lim_{x\to3}\frac{(x-3)(x+3)}{x-3} = \lim_{x\to3}(x+3) = 6 \]
When the limit exists A two-sided limit exists only when \(\displaystyle\lim_{x\to c^-} f(x) = \lim_{x\to c^+} f(x)\). A jump, where the two sides disagree, has no limit.
AP Unit 1 Limit Laws Squeeze Theorem Continuity IVT
Module 02

Derivatives — Definition & Techniques

AP Units 2–3

Big idea: the slope of a curve at a single instant is a limit of slopes of shrinking secant lines — and once you have the rules, you never have to take that limit by hand again.

Topics

The derivative as a limit — \(f'(x)=\displaystyle\lim_{h\to0}\frac{f(x+h)-f(x)}{h}\), the tangent-line slope, and differentiability vs. continuity.

Differentiation rules — power, product, quotient, and chain rules; derivatives of trig, exponential, and logarithmic functions.

Implicit & inverse differentiation — \(\tfrac{dy}{dx}\) when \(y\) is tangled with \(x\), and derivatives of inverse functions.

You'll be able to…

  • Compute a derivative from the limit definition and read it as a tangent slope.
  • Differentiate fluently with the power, product, quotient, and chain rules.
  • Differentiate \(\sin x\), \(\cos x\), \(e^x\), and \(\ln x\) from memory.
  • Use implicit differentiation to find \(\tfrac{dy}{dx}\) for an implicit relation.

Worked example

The chain rule Differentiate \(y=(3x^2+1)^4\). Outer power times inner derivative: \[ \frac{dy}{dx} = 4(3x^2+1)^3\cdot 6x = 24x(3x^2+1)^3 \]
The product rule For \(f(x)=x^2 e^x\): \(f'(x) = 2x\,e^x + x^2 e^x = x e^x(2+x)\).
AP Unit 2 AP Unit 3 Chain Rule Implicit Inverse Derivatives
Module 03

Applications of Derivatives

AP Units 4–5

Big idea: the derivative is a microscope on behavior — it locates peaks and valleys, predicts how fast related quantities move together, and reveals the exact shape of a curve.

Topics

Related rates & motion — position, velocity, and acceleration; rates linked through a shared equation.

Curve analysis — the first and second derivative tests, concavity, inflection points, and the Mean Value Theorem.

Optimization & approximation — absolute extrema in context, plus L'Hôpital's Rule for indeterminate forms.

You'll be able to…

  • Find critical points and classify extrema with the first and second derivative tests.
  • Determine intervals of increase, decrease, and concavity to sketch a curve.
  • Set up and solve related-rates and optimization problems in context.
  • Apply L'Hôpital's Rule to \(\tfrac{0}{0}\) and \(\tfrac{\infty}{\infty}\) limits.

Worked example

Classify a critical point For \(f(x)=x^3-3x\), \(f'(x)=3x^2-3=0\) at \(x=\pm1\). Since \(f''(x)=6x\): \(f''(1)>0\) (local min) and \(f''(-1)<0\) (local max).
L'Hôpital's Rule \(\displaystyle\lim_{x\to0}\frac{\sin x}{x}\) is \(\tfrac{0}{0}\), so differentiate top and bottom: \[ \lim_{x\to0}\frac{\cos x}{1} = 1 \]
AP Unit 4 AP Unit 5 MVT Optimization L'Hôpital
Filled chip marks a topic that recurs heavily across the AP free-response section.
Module 04

Integration & the Fundamental Theorem

AP Units 6–8

Big idea: adding up infinitely many infinitely thin slices gives an exact total — and the Fundamental Theorem proves that this accumulation simply undoes the derivative.

Topics

The definite integral — Riemann sums as a limit, antiderivatives, and both parts of the Fundamental Theorem of Calculus.

Techniques — \(u\)-substitution (and, for BC, integration by parts and partial fractions).

Applications — area between curves, volumes by disks, washers, and shells, and average value.

You'll be able to…

  • Express a definite integral as a limit of Riemann sums.
  • Apply both parts of the Fundamental Theorem to evaluate and differentiate integrals.
  • Integrate by \(u\)-substitution and reverse the chain rule.
  • Compute area between curves and a solid's volume by disks, washers, or shells.

Worked example

The Fundamental Theorem (Part 2) Evaluate \(\displaystyle\int_1^3 2x\,dx\). An antiderivative is \(x^2\), so \[ \Big[x^2\Big]_1^3 = 9 - 1 = 8 \]
u-substitution For \(\displaystyle\int 2x\,(x^2+1)^3\,dx\), let \(u=x^2+1\), \(du=2x\,dx\): \[ \int u^3\,du = \tfrac{1}{4}(x^2+1)^4 + C \]
AP Unit 6 AP Unit 7 AP Unit 8 FTC Volumes
Filled chip marks a topic that recurs heavily across the AP free-response section.
Module 05 · BC Capstone

Differential Equations, Series & BC Extensions

AP Units 7 & 9–10

Big idea: calculus reaches its peak when a single equation models how a quantity grows, and when an infinite sum of polynomial terms can reproduce a transcendental function to any precision.

Topics

Differential equations — slope fields, separation of variables, and exponential growth and decay (AB & BC).

Series & convergence (BC) — the convergence tests, power series, and Taylor and Maclaurin series.

Parametric, polar & vector calculus (BC) — calculus on curves defined by \(x(t)\), \(y(t)\), and \(r(\theta)\).

You'll be able to…

  • Solve a separable differential equation and sketch its slope field.
  • Test a series for convergence with the appropriate test.
  • Build the Maclaurin series for \(e^x\), \(\sin x\), and \(\cos x\).
  • Differentiate and integrate parametric and polar curves (BC).

Worked example

Separate variables Solve \(\dfrac{dy}{dx}=ky\). Separate and integrate: \(\displaystyle\int\frac{dy}{y}=\int k\,dx\), giving \[ y = Ce^{kx} \]
A Maclaurin series \[ e^{x} = \sum_{n=0}^{\infty}\frac{x^{n}}{n!} = 1 + x + \frac{x^2}{2!} + \frac{x^3}{3!} + \cdots \]
AP Unit 7 AP Unit 9 · BC AP Unit 10 · BC Taylor / Maclaurin Parametric & Polar
Filled chip marks BC-only content beyond the AB exam.

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What You'll Build

Mathematical Architects don't memorize rules — they reason about change. By the AP exam in May, every scholar can:

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Reason with limits

Read where a function is headed from a graph, a table, or its algebra — and know exactly when a limit and continuity fail.

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Differentiate fluently

Apply the power, product, quotient, and chain rules — plus implicit and inverse differentiation — without hesitation.

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Model with the derivative

Find extrema, analyze concavity, solve related-rates and optimization problems, and interpret motion from a rate.

Integrate & accumulate

Use the Fundamental Theorem and \(u\)-substitution to evaluate integrals, then compute area, volume, and average value.


The Toolkit

Required Materials

  • Graphing calculator (TI-84 Plus CE or equivalent) — an AP-approved model is required for the exam
  • Interactive notebook (composition or spiral, dedicated to this class)
  • Pencils — mathematics is always drafted in pencil
  • Graph paper for hand-built coordinate work and slope fields
Curriculum

Built on the AP Framework

This course is organized around the College Board AP Calculus AB/BC Course & Exam Description — a collegiate Calculus I–II sequence. It is not a Texas TEKS/STAAR course; there is no STAAR End-of-Course exam. Mastery is measured against the AP units and confirmed on the AP Calculus exam in early May, so tested content is front-loaded to leave weeks for review. AB corresponds to Calculus I; BC adds the Calculus II content (series and parametric, polar, and vector calculus).


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Learning Resources & Supports

Free, vetted places to practice between class — plus the on-site reference sheet you can print and keep beside you. Use them when you're stuck, then bring questions to class.

On-site

Calculus Reference Sheet

Every formula in one printable place — limit laws, derivative and integral rules, both parts of the Fundamental Theorem, the application formulas, the series tests, and the key Maclaurin series.

Open the Reference Sheet →
Official

AP Calculus AB & BC — College Board

The official Course & Exam Description, unit guides, and released free-response questions this course is built to. Read the CED to see exactly what the AP exam expects.

apcentral.collegeboard.org →
Video + practice

Khan Academy — AP Calculus

Free video lessons and practice sets aligned unit-by-unit to AP Calculus AB and BC. Best when you want a concept re-taught a different way.

khanacademy.org/math/ap-calculus-ab →
Graphing tool

Desmos Graphing Calculator

The free graphing calculator we use in class. Graph a function and its derivative together, shade the area under a curve, and explore limits visually.

desmos.com/calculator →
Coming to the Assessment Center

AP-style Practice & Module Checkpoints

Aligned Calculus practice sets, multiple-choice drills, and free-response checkpoints will be delivered through the STEM Studio Assessment Center. A scholar progress view and per-module checkpoints are in development — the math layer of the Assessment Center is being built now and will go live as modules are released. (No live math analytics or scores exist yet; this is what's coming.)

Stuck on a problem? Try the worked example for that module above, check the reference sheet for the right rule, and regraph the function and its derivative on Desmos. Still stuck? Bring it to class, office hours, or message through ParentSquare — asking precise questions is itself a college-math skill.


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Where to Go Next

Four doors into the course. Start with the syllabus, or grab the reference sheet.

Course Syllabus

Policies, the studio learning environment, grading, expectations, and the full itinerary by grading period. Acknowledgment due on ParentSquare by the second week.

Visit Student Support

Pacing Guide

Every module mapped to the calendar, grading period by grading period, front-loaded so all AP-tested content finishes with weeks to spare before the early-May exam.

View the Pacing Guide

Reference Sheet

The printable one-page formula companion — limit laws, derivative and integral rules, the Fundamental Theorem, application formulas, series tests, and Maclaurin series.

Open the Reference Sheet

Instructor: Dr. Goodluck Ijezie-Desbois, PharmD · Beta Academy · Room: TBA
Reach out by appointment, at gijezie-desbois@betaacademy.org, or through ParentSquare.