Jacek Kostyrko

STATS12 · STATSONLINE · MATH96 · MATH20 · MATH12STATS · MATH013 · CALC2 · MATH001 · MATH1 · MATH012 · MATH92G · MATH90 · MATH090 · MATH13 · STATISTICS · MATH092G · FINITEMATH · ASTRO1 · MATH12 · MATH38A · MATH092GONLINE · 187 lifetime ratings

AI rating: 94/100
RMP rating: 4.0/5
Take again: 90.67%
Difficulty: 2.8

The decision

if you will use the retries and .

Best fit · Effort For RewardMultiple attemptsDeadline extensionsCaringStatCrunch focusedClear grading criteria

, and even exams so effort almost always pays off.
Content still needs real practice, especially StatCrunch and Pearson work.
Both online and and .

Key questions

Four answers before you build your schedule.

Is this an easy A?

EasyA

88/100

Multiple retries plus end-of-term extensions make an A realistic for anyone who keeps working the online tasks.

Online and in-person both stress many attempts; .

Is the course easy?

Beginner

70/100

Material is standard intro math or stats difficulty, eased by notes and software tools but still effortful.

; online depends more on Pearson and YouTube.

Is attendance flexible?

Optional

84/100

; success hinges on online work more than seat time.

; some online sections list attendance as required but .

Is this professor recommended?

MustTake

92/100

About 91 percent would , and many chances to raise scores.

Strong yes across online and in-person; rare harsh outliers are older or upper-level.

Course guide

See how this professor fits your week.

Grading

Generous

90/100

Unlimited or multi-attempt homework and quizzes .

Format shift

Same generous policy pattern online and in person.

Workload

Moderate

52/100

, but retries and extended due dates keep it manageable.

Format shift

Both formats report lots of .

Teaching experience

Excellent

88/100

, and funny with fast help; only isolated older complaints of rudeness.

Format shift

; online highlights accessibility and extensions.

Assessment method

Balanced

48/100

and and finals that can be retaken.

Format shift

Online is almost fully Pearson-based; .

Luni fit check

Weigh these signals against your actual schedule.

Get help balancing workload, grading, and timing when no option is an obvious fit.

Course format

Compare the in-person and online experience.

Classroom format

In person

23 reviews

High confidence · Best fit for Beginner Friendly

In-person lectures are praised as clear and funny; quizzes and and flexible deadlines.

Main concern

You still must practice; a few older reviews call him rude in harder courses.

What students said

“The way he teaches is VERY easy to understand. He's probably one of the .”
MATH12STATS

“Need an extension? He readily provided it, and he even extended the deadline for .”
MATH20

“One of the .”
CALC2

Remote format

Online

27 reviews

High confidence · Best fit for Effort For Reward

Online math is Pearson/StatCrunch heavy with many attempts and ; students say you pass if you put in time.

Main concern

Self-teaching StatCrunch and expensive e-text access can frustrate some.

What students said

“Very lenient and caring!”
FINITEMATH

“You get unlimited attempts on homework, 6 attempts on quizzes, and 4 attempts on exams.”
MATH12

“it was easier to learn through youtube rather than the professor.”
STATISTICS

Exam style

Know what to expect from exams and major assignments.

Exams and quizzes allow several attempts and , so failure is rare if you keep trying.

Multiple exam attemptsExtended deadlinesRetake quizzesPearson or StatCrunch based

Assessment risk

StudentFriendly

86/100

Low score means less forgiving assessment conditions.

In person

In-person courses still use multi-attempt online quizzes and .

Online quizzes and examsMultiple attemptsOptional attendance

“ as many times as needed. .”
MATH20

“Gave us multiple , and final.”
STATISTICS

Online

Online exams and and late reopenings with no reported camera proctoring.

Multiple attemptsExtended deadlinesPearson assessments

“You get unlimited attempts on homework, 6 attempts on quizzes, and 4 attempts on exams.”
MATH12

“Gives you 5 tries to pass Quiz, Mid Term/Final 3 tries, Homework is unlimited.”
MATH012

Student evidence

See what students actually said.

Top student voice
“TAKE THIS PROFESSOR! He is so nice and caring, and answer super fast. There is literally no reason why you shouldn't get 100% in this class.”
Voice snapshots generated from 50 reviews, highlighting care, retries, and math tools. Credibility rating: High.

🎯 Teaching Quality

88/100

“He's probably one of the .”

👍 Recommendation Rate

92/100

“If you need to take a .”

🔄 Second Chances

90/100

“By the end of the class, he will .”

❤️ Student Care

92/100

“He has a heart of gold; I've never had a prof care so much about students!”

Theme 1

👨‍🏫 About Teaching Style

The way he teaches is VERY easy to understand
He's pretty funny too
and FLEXIBLE

Theme 2

📈 About Difficulty & Grades

if you want an easy A
As long as you put in the effort, you will get an A
Theres zero reason to fail this class

Theme 3

💻 About Tools

USE STATCRUNCH AND MYMATHLAB ON YOUTUBE
Learn how to use StatCrunch, it will SAVE you
Whole course is based on using StatCrunch

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

187

Lifetime ratings

90/100

Evidence confidence

50 reviews with strong agreement on retries, care, and passability across online and .

Inside 50 stored ratings

Quality ratings

5 out of 5112

4 out of 533

3 out of 514

2 out of 516

1 out of 513

Course coverage

MATH0128 reviews

STATISTICS5 reviews

ASTRO14 reviews

FINITEMATH4 reviews

MATH0134 reviews

Show 16 more courses

MATH124 reviews

STATS123 reviews

MATH0902 reviews

MATH12STATS2 reviews

MATH38A2 reviews

MATH92G2 reviews

CALC21 review

MATH0011 review

MATH092G1 review

MATH092GONLINE1 review

MATH11 review

MATH131 review

MATH201 review

MATH901 review

MATH961 review

STATSONLINE1 review

Reported outcomes

A range results lead the reported letter grades.

43 reported outcomes

A range

A+ 3 · A 18

B range

B+ 2 · B 11

C range

C+ 1 · C 4

D range

No reported values

F

No reported values

No letter grade reported

Not sure yet 4

Jacek Kostyrko

x x x x x x if you will use the retries and x x x x.

Four answers before you build your schedule.

EasyA

Beginner

Optional

MustTake

See how this professor fits your week.

Compare the in-person and online experience.

Know what to expect from exams and major assignments.

In person

Online

See what students actually said.

🎯 Teaching Quality

👍 Recommendation Rate

🔄 Second Chances

❤️ Student Care

👨‍🏫 About Teaching Style

📈 About Difficulty & Grades

💻 About Tools

See exactly what the AI read.

Quality ratings

Course coverage

A range results lead the reported letter grades.

A range

B range

C range

D range

F

No letter grade reported

if you will use the retries and .