Exam Sprint Sign in

Home Lessons Quick lessons Courses Ask Merit AI Tutors Merit Tutors' Videos

Study tools

Tonight's planPlus Exam Sprint My schedulePlus ProgressPlus

Exam Sprint

Your exam, planned day by day.

Free diagnostic in 10 minutes.

Lessons for what you're learning in class. Merit Plus suggests videos for what you're learning in class. Free for your first month.

Sign in to save lessons, track topics, and get a study plan.

Popular courses AP Calculus BC AP United States History AP Physics 1: Algebra-Based AP Computer Science A AP Environmental Science AP Precalculus AP Statistics

Top channels

Heimler's History

The Organic Chemistry Tutor

Michael Porinchak - AP Statistics & AP Precalculus

Pricing For teachers How ranking works About Merit

About Privacy Terms

Videos play on YouTube. AP® and SAT® are trademarks of the College Board, which is not affiliated with Merit.

© 2026 Merit

Home Lessons Courses Ask AI Tutors Plan Sprint You

AP Calculus AB›Unit 3: Integration and Accumulation›Accumulation

Riemann Sums

A Riemann sum estimates area with rectangles or trapezoids. As the widths shrink, the sum approaches the definite integral.

Search Calc AB

Left, right, midpointTrapezoidal sumsOver- or under-estimate?

40 videos · ranked by how well they teach

1

Riemann Sums - Left Endpoints and Right Endpoints

2M views on YouTube · 8 years ago

The Organic Chemistry Tutor

2

Riemann Sums - Midpoint, Left & Right Endpoints, Area, Definite Integral, Sigma Notation, Calculus

1.3M views on YouTube · 9 years ago

The Organic Chemistry Tutor

3

Introduction to integral calculus | Accumulation and Riemann sums | AP Calculus AB | Khan Academy

959K views on YouTube · 9 years ago

4

Riemann approximation introduction | Accumulation and Riemann sums | AP Calculus AB | Khan Academy

804K views on YouTube · 13 years ago

5

Trapezoidal sums | Accumulation and Riemann sums | AP Calculus AB | Khan Academy

546K views on YouTube · 13 years ago

6

Worked example: Riemann sums in summation notation | AP Calculus AB | Khan Academy

281K views on YouTube · 12 years ago

7

Calculus AB/BC – 6.2 Approximating Areas with Riemann Sums

250K views on YouTube · 5 years ago

8

How to use left hand riemann sums from a table

108K views on YouTube · 8 years ago

9

AP Calculus AB Unit 6 Review | Riemann Sums, Integration, FTC Part I & II, U-Substitution

102K views on YouTube · 3 years ago

Math & Coding Tutor

10

Over- and under-estimation of Riemann sums | AP Calculus AB | Khan Academy

94K views on YouTube · 8 years ago

11

Breaking up integral interval | Accumulation and Riemann sums | AP Calculus AB | Khan Academy

87K views on YouTube · 12 years ago

12

Calculus AB/BC – 6.3 Riemann Sums, Summation Notation, and Definite Integral Notation

79K views on YouTube · 1 year ago

13

AP Calculus Riemann sums: Soup to Nuts

44K views on YouTube · 19 years ago

14

Worked example: over- and under-estimation of Riemann sums | AP Calculus AB | Khan Academy

41K views on YouTube · 8 years ago

15

Riemann Sums Example: Finding Left, Right, and Midpoint Riemann Sums

22K views on YouTube · 6 years ago

Math with Dr. Claire

16

Riemann Sums from a Table

18K views on YouTube · 4 years ago

Travis Mckinney

17

Master Riemann Sums in 2 Minutes!! (Calculus 2)

14K views on YouTube · 5 years ago

18

Riemann Sums | Calculus Lesson 33

11K views on YouTube · 4 years ago

19

How to Find the Area Under a Curve | Riemann Sums Explained Intuitively

5.2K views on YouTube · 9 months ago

20

Calc 1 Review - Riemann Sums

4.1K views on YouTube · 4 years ago

Unit 3: Integration and Accumulation

Riemann Sums
Fundamental Theorem of Calculus
u-Substitution
Area Between Curves
Volumes of Revolution

Next topic

Fundamental Theorem of Calculus

Get the Calc AB score you want.

Free diagnostic, then a day-by-day Exam Sprint to exam day.

Best teachers for this topic

1Khan Academy
2MrHelpfulNotHurtful
3The Organic Chemistry Tutor
4The Algebros

Get a Calc AB tutor

Teacher? Add a lesson or guide for this topic

Also called: rectangles, trapezoidal rule, area approximation