Data 100: Principles and Techniques of Data Science

UC Berkeley, Fall 2025

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Josh Grossman profile photo

Josh GrossmanHe/Him/His

data100.instructors@berkeley.edu

jdgg AT berkeley DOT edu

Ramesh Sridharan profile photo

Ramesh SridharanHe/Him/His

data100.instructors@berkeley.edu

ramesh_s AT berkeley DOT edu

Week 1 Announcements

Jan 19 · 0 min read
  1. Welcome to Week 1 of Data 100!

Schedule

Week 1

Tue, Jan 20
Reading Note 1
Wed, Jan 21
Homework-released Homework 1: Prerequisite Math
Thu, Jan 22
Fri, Jan 23

Week 2

Tue, Jan 27
Wed, Jan 28
Discussion 1Prerequisites
Thu, Jan 29
Lab Lab 2A: Pandas
Homework-releasedHomework 2A: Food Safety I
Fri, Jan 30
Homework-dueHomework 1: Prerequisite Math

Week 3

Tue, Feb 03
Wed, Feb 04
Discussion 2Pandas I
Thu, Feb 05
Lecture 6 Regex
Lab Lab 2B: Data Cleaning, EDA
Homework-releasedHomework 2A: Food Safety II
Fri, Feb 06

Week 4

Tue, Feb 10
Wed, Feb 11
Discussion 3Pandas II, EDA
Thu, Feb 12
Lab Lab 3: Regex, EDA
Homework-releasedHomework 3: NYT Articles
Fri, Feb 13

Week 5

Tue, Feb 17
Lecture 9 Sampling
Wed, Feb 18
Discussion 4Regex, Visualization, and Transformation
Thu, Feb 19
Lecture 10 Modeling, SLR
Lab Lab 4: Tranformations
Homework-releasedHomework 4: Bike Sharing
Fri, Feb 20

Week 6

Tue, Feb 24
Wed, Feb 25
Discussion 5Probability, Sampling, and Visualization
Thu, Feb 26
Lab Lab 5: Modeling, Summary Statistics, Loss Functions, and OLS
Homework-releasedHomework 5: Modeling and OLS
Fri, Feb 27

Week 7

Tue, Mar 03
Wed, Mar 04
Discussion 6Modeling and OLS
Thu, Mar 05
Fri, Mar 06

Week 8

Mon, Mar 09
Exam Midterm 1 (CBTF, Monday-Thursday)
Tue, Mar 10
Wed, Mar 11
Discussion 7Gradient Descent
Thu, Mar 12
Lab Lab 6: Gradient Descent, sklearn
Project A1Housing I
Fri, Mar 13

Week 9

Tue, Mar 17
Wed, Mar 18
Discussion 8Feature Engineering, Housing
Thu, Mar 19
Lab Lab 7: Model Selection
Project A2Housing II
Fri, Mar 20

Week 10

Tue, Mar 24
Spring Break
Wed, Mar 25
Spring Break
Thu, Mar 26
Spring Break
Spring Break
Fri, Mar 27

Week 11

Tue, Mar 31
Wed, Apr 01
Discussion 9Cross-Validation and Regularization
Thu, Apr 02
Lab Lab 8: Probability
Homework-releasedHomework 6: Probability
Fri, Apr 03

Week 12

Tue, Apr 07
Exam Midterm 2 (CBTF, Tuesday-Thursday)
Lecture 21 SQL I
Wed, Apr 08
Discussion 10RVs, Bias, and Variance
Thu, Apr 09
Lecture 22 SQL II
Lab Lab 9: SQL
Homework-releasedHomework 7: SQL
Fri, Apr 10

Week 13

Tue, Apr 14
Wed, Apr 15
Discussion 11SQL
Thu, Apr 16
Lab Lab 10: Logistic Regression
Project B1Spam & Ham I
Fri, Apr 17

Week 14

Tue, Apr 21
Wed, Apr 22
Discussion 12Logistic Regression
Thu, Apr 23
Lab Lab 11: PCA and Clustering
Project B2Spam & Ham II
Fri, Apr 24

Week 15

Mon, Apr 27
Discussion PCA and Clustering (Recorded)
Tue, Apr 28
Lecture 27 Guest Lecture
Wed, Apr 29
Thu, Apr 30
Exam Midterm 3 (Paper)
Fri, May 01

Week 16

Tue, May 05
RRR Week
Wed, May 06
RRR Week
Thu, May 07
RRR Week
Fri, May 08

Week 17

Tue, May 12
Finals Week
Wed, May 13
Finals Week
Thu, May 14
Exam Final (Paper, 11:30 AM - 2:30 PM)
Finals Week
Fri, May 15

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