
Calculus 1B: Integration
Discover the integral—what it is and how to compute it. See how to use calculus to model real world phenomena. Part 2 of 3.

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About this Course
How long should the handle of your spoon be so that your fingers do not burn while mixing chocolate fondue? Can you find a shape that has finite volume, but infinite surface area? How does the weight of the rider change the trajectory of a zip line ride? These and many other questions can be answered by harnessing the power of the integral.
But what is an integral? You will learn to interpret it geometrically as an area under a curve, and discover its connection to the derivative. You will encounter functions that you cannot integrate without a computer and develop a big bag of tricks to attack the functions that you can integrate by hand. The integral is vital in engineering design, scientific analysis, probability and statistics. You will use integrals to find centers of mass, the stress on a beam during construction, the power exerted by a motor, and the distance traveled by a rocket.
Calculus is a series of the following three modules:
- 18.01.1x: Calculus 1A: Differentiation
- 18.01.2x: Calculus 2B: Integration
- 18.01.3x: Calculus 3C: Coordinate Systems & Infinite Series
18.01x Calculus 2B: Syllabus:
- Modeling the Integral
- Differentials and Antiderivatives
- Differential Equations
- Separation of Variables
- Theory of Integration
- Mean Value Theorem
- Definition of the Integral and the First Fundamental Theorem
- Second Fundamental Theorem
- Applications
- Areas and Volumes
- Average Value and Probability
- Arc Length and Surface Area
- Techniques of Integration
- Numerical Integration
- Trigonometric Powers, Trig Substitutions, Completing the Square
- Partial Fractions, Integration by Parts
This course, in combination with Part 1, covers the AP Calculus AB curriculum.
This course, in combination with Parts 1 and 3, covers the AP Calculus BC curriculum.
What you'll learn
- Some differential equation models for physical phenomena and solutions.
- The geometric interpretation of the integral as an area under a graph, and the physical meaning as an accumulation.
- The connection of the integral to the derivative.
- Several methods of numerically and symbolically integrating functions
- To apply integrals to solve real world problems.
Prerequisites
18.01.1x Calculus 1A: Differentiation
Meet your instructors
David Jerison
Professor of Mathematics
David Jerison received his Ph.D. from Princeton University in 1980, and joined the mathematics faculty at MIT in 1981. In 1985, he received an A.P. Sloan Foundation Fellowship and a Presidential Young Investigator Award. In 1999 he was elected to the American Academy of Arts and Sciences. In 2004, he was selected for a Margaret MacVicar Faculty Fellowship in recognition of his teaching. In 2012, the American Mathematical Society awarded him and his collaborator Jack Lee the Bergman Prize in Complex Analysis.
Professor Jerison's research focuses on PDEs and Fourier Analysis. He has taught single variable calculus, multivariable calculus, and differential equations at MIT several times each.