AI Rate Professor

Chemistry

Anna Toncheva

CHEM20 · CHEM21A · 11 lifetime ratings

AI rating
57/100
RMP rating
3.6/5
Take again
66.67%
Difficulty
3.9

The decision

if you are ready to study heavily and use worksheets, tutoring, lectures, and notes to survive a demanding chemistry course.

Best fit · Hardcore LearnerHard ChemistryPractice WorksheetsTest HeavyHelpful But DemandingMixed Online Experience
  • Students agree the chemistry content is hard and requires serious study.
  • Positive reviews praise , and willingness to help.
  • Negative reviews focus on confusing online , and limited test time.

Key questions

Four answers before you build your schedule.

Is this an easy A?

HardWork

42/100

A good grade is possible, but students repeatedly say it requires heavy studying, worksheets, tutoring, and strong test preparation.

Online reviews make the A feel harder because of stress and unclear notes, while .

Is the course easy?

Challenging

28/100

The , and fast enough that students need practice and outside support.

Online reviews describe the course as especially hard to understand, while but better supported by worksheets and lecture review.

Is attendance flexible?

Recommended

45/100

as mandatory, but participation, lecture review, tutoring, and staying current are important for passing.

Online evidence emphasizes independent study, while and using class worksheets and lectures.

Is this professor recommended?

WorthIt

62/100

Recommendation is moderate because many students learn a lot and respect her support, but the difficulty and testing experience are major drawbacks.

, while online reviews are weaker because of and stressful proctored tests.

Course guide

See how this professor fits your week.

Grading

Strict

32/100

Students mention , and time pressure, though worksheets can help prepare.

Format shift

Online reviews emphasize stressful proctored testing, while and fast testing.

Workload

Heavy

35/100

The course requires many worksheets, recorded lectures, notes, textbook study, tutoring, and .

Format shift

Online workload leans on lectures and , while and repeated lecture review.

Teaching experience

Average

62/100

Teaching quality and complaints that online lectures or notes are hard to follow.

Format shift

, while online teaching receives sharper criticism for and limited explanation.

Assessment method

FocusOnExams

82/100

Students repeatedly describe quizzes, tests, multiple-choice exams, proctored testing, and as central.

Format shift

Online reviews explicitly mention proctored testing, while , and worksheet-to-test alignment.

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

9 reviews

High confidence · Best fit for Hardcore Learner

In-person reviews are more positive, with students , and helpful support despite high difficulty.

Main concern

In-person , and a large amount of material.

What students said

“This course is not easy but if you study and go over her lectures and lecture notes, you will definitely pass.”
CHEM20
“She grades strictly and offers one EC opportunity if any at all.”
CHEM21A
“offers a lot of practice problems via worksheets.”
CHEM21A

Remote format

Online

2 reviews

Medium confidence · Best fit for Self Taught Pro

Online reviews are negative to mixed, emphasizing difficult chemistry, stressful proctored testing, textbook dependence, and .

Main concern

Online students may feel left alone with hard content and stressful testing.

What students said

“This is the hardest class Ive ever taken. I didnt understand anything.”
CHEM20
“Difficult proctored testing was stressful.”
CHEM20

Exam style

Know what to expect from exams and major assignments.

because reviews mention difficult proctored testing, many quizzes and , and limited test time.

Proctored TestingTest HeavyMultiple Choice TestsShort Test Time

Assessment risk

Strict

30/100

Low score means less forgiving assessment conditions.

In person

In-person reviews mention multiple-choice quizzes and , and limited time, but they do not clearly prove closed-book or .

Multiple Choice TestsTest HeavyLimited Test Time
“Quizzes and .”
CHEM21A
“she NEVER gave a lot of time on the tests/quizzes”
CHEM20
“prepare to get tested on it right after she teaches it.”
CHEM21A

Online

Online reviews explicitly mention difficult proctored testing, but they do not clearly .

Difficult Proctored TestingTest Heavy
“Difficult proctored testing was stressful.”
CHEM20
“This class was very difficult and I could not have passed without the classes' SI tutor.”
CHEM20

Student evidence

See what students actually said.

Top student voice

“Honestly Professor Toncheva's class was the hardest class I have ever taken, but it really taught me how to study and I learned so much.”

Voice snapshots generated from 11 reviews, highlighting key themes in chemistry difficulty, testing pressure, and support quality. Credibility rating: Medium.

🧪 Course Difficulty

28/100

“This is the hardest class Ive ever taken. I didnt understand anything.”

🎯 Teaching Quality

62/100

“Her lecture Videos & .”

📝

30/100

“Difficult proctored testing was stressful.”

Theme 1

📈 About Difficulty & Grades

  • Not an easy A, she has a PhD in Chem.
  • All science classes are hard so put the effort in and your grade will show your hard work.
  • This course is not easy but if you study and go over her lectures and lecture notes, you will definitely pass.

Theme 2

👨‍🏫 About Teaching Support

  • offers a lot of practice problems via worksheets.
  • She really cares a lot, & She is always ready to help.
  • Professor Ana is a great teacher .Her notes and in tests and quizzes.

Theme 3

🧪 About Tests

  • Difficult proctored testing was stressful.
  • Quizzes and .
  • she NEVER gave a lot of time on the tests/quizzes

Data context

See exactly what the AI read.

Analysis sample

11

Recent reviews read by the AI

11

Lifetime ratings

68/100

Evidence confidence

Credibility is medium because 11 reviews provide useful detail across formats, but the sample is modest and opinions are sharply split.

Inside 11 stored ratings

Quality ratings

5 out of 56
4 out of 51
3 out of 51
2 out of 51
1 out of 52

Course coverage

CHEM208 reviews
CHEM21A3 reviews

Reported outcomes

A range results lead the reported letter grades.

7 reported outcomes

A range

3

A+ 1 · A 2

B range

2

B 2

C range

1

C+ 1

D range

0

No reported values

F

0

No reported values

No letter grade reported

1

Rather not say 1