Carney Curve

Boston College course evaluations · every published number, ranked class by class

Positions account for how many records stand behind each number, so one perfect review does not outrank a semester of them. Every score shown is the real average — only the ordering is adjusted.

Instructor record · Earth and Environmental Sciences · Spring 2023 – Spring 2026

Hanqin Tian

Earth and Environmental Sciences · 10 evaluation records across 8 classes

On each class's board
EESC 3311only instructor on recordEESC 5311only instructor on record ProvisionalEESC 5565only instructor on record ProvisionalSCHI 30202nd of 3 instructors ProvisionalSCHI 50201st of 2 instructors ProvisionalSCHI 5030only instructor on record ProvisionalSCHI 60201st of 3 instructors ProvisionalSCHI 70201st of 3 instructors Provisional
What the overall is made of
85BC evaluations10 records · weight ×1.0 · Spring 2023 – Spring 2026
Student reviewsno reviews — does not contribute
RateMyProfessorsno ratings — does not contribute

Sources are averaged by how much we trust each one and by how many records sit behind it, so a handful of reviews nudges the number rather than replacing it.

What the challenge rank is made of
35thMore challenging than 35% of BC instructorsranked against every one we hold
86BC — “Intellectually Challenging”10 records · raw score out of 100

Boston College's own “intellectually challenging” question — students answer it positively about courses that stretched them, so it measures intellectual challenge and NOT grading, workload or quality. Almost every BC class scores high on it, which is why it is shown as a rank rather than a score.

What the workload rank is made of
26thMore work than 26% of BC instructorsranked against every one we hold
40BC — “Workload”10 records · raw score out of 100

Boston College reports workload as one of five bands, not as a number of hours, and it does not publish what the bands mean — so this site will not translate it into hours. Higher means more work, which is not the same as worse.

The line

All 13 items · means across 10 records
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
8724th pctl
Available Outside of ClassThe instructor was available for help outside of class.
8311th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8522nd pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
8725th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8733rd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8628th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9047th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8423rd pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9051st pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8838th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4026th pctl
Intellectually ChallengingThe course was intellectually challenging.
8635th pctl
Attendance MattersAttending class was necessary to do well in this course.
8529th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

Class by class

8 classes · 10 sections

How each position is worked outPositions account for how many records stand behind each number, so one perfect review does not outrank a semester of them. Every score shown is the real average — only the ordering is adjusted.

EESC 3311 Earth System Science and Global SustainabilityOvr65Chal4thWork0th
On this class's boardonly instructor on record

3 sections on record · course itself rated 65 out of 100. See the full board for EESC 3311.

TermSecInstrCourseWork
Spring 2026017480
Spring 202401696520
Spring 2023015150
All 13 items for EESC 3311
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
742nd pctl
Available Outside of ClassThe instructor was available for help outside of class.
731st pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
762nd pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
792nd pctl
The Course3 items
Well-Organized CourseThe course was well organized.
777th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
764th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
8513th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
774th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8419th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
798th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
200th pctl
Intellectually ChallengingThe course was intellectually challenging.
774th pctl
Attendance MattersAttending class was necessary to do well in this course.
723rd pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

EESC 5311 Advanced Earth System Science and Global SustainabilityOvr100ChalWork
On this class's boardonly instructor on record Provisional

1 section on record · course itself rated 100 out of 100. See the full board for EESC 5311.

TermSecInstrCourseWork
Spring 202601100100
All 13 items for EESC 5311

Nothing reported

None of the evaluation questions were reported for these records.

EESC 5565 Terrestrial Biosphere ModelingOvr100Chal100thWork78th
On this class's boardonly instructor on record Provisional

1 section on record · course itself rated 100 out of 100. See the full board for EESC 5565.

TermSecInstrCourseWork
Fall 20240110010060
All 13 items for EESC 5565
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9349th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9351st pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
100100th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
100100th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9367th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9362nd pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
6078th pctl
Intellectually ChallengingThe course was intellectually challenging.
100100th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

SCHI 3020 Integrating Science and Society: A Tale of Four NobelsOvr65ChalWork
On this class's board2nd of 3 instructors Provisional

1 section on record · course itself rated 51 out of 100. See the full board for SCHI 3020.

TermSecInstrCourseWork
Fall 2024016551
All 13 items for SCHI 3020

Nothing reported

None of the evaluation questions were reported for these records.

SCHI 5020 Exploring the Climate-Energy-Sustainability-Policy NexusOvr93ChalWork
On this class's board1st of 2 instructors Provisional

1 section on record · course itself rated 80 out of 100. See the full board for SCHI 5020.

TermSecInstrCourseWork
Fall 2023019380
All 13 items for SCHI 5020

Nothing reported

None of the evaluation questions were reported for these records.

SCHI 5030 AI for EarthOvr100Chal100thWork25th
On this class's boardonly instructor on record Provisional

1 section on record · course itself rated 100 out of 100. See the full board for SCHI 5030.

TermSecInstrCourseWork
Spring 20260110010040
All 13 items for SCHI 5030
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9349th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9343rd pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9356th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9367th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
100100th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4025th pctl
Intellectually ChallengingThe course was intellectually challenging.
100100th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

SCHI 6020 The Sustainability-Energy-Climate Nexus: Integrated Science and Society (Graduate level)Ovr94Chal21stWork25th
On this class's board1st of 3 instructors Provisional

1 section on record · course itself rated 85 out of 100. See the full board for SCHI 6020.

TermSecInstrCourseWork
Fall 202501948540
All 13 items for SCHI 6020
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9880th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9562nd pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9138th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9555th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8831st pctl
Clear Learning GoalsThe learning objectives for the course were clear.
9042nd pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9350th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8518th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9151st pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8933rd pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4025th pctl
Intellectually ChallengingThe course was intellectually challenging.
8521st pctl
Attendance MattersAttending class was necessary to do well in this course.
9355th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

SCHI 7020 Integrating Science and Society: A Tale of Four Nobels (Graduate Level)Ovr100ChalWork
On this class's board1st of 3 instructors Provisional

1 section on record · course itself rated 90 out of 100. See the full board for SCHI 7020.

TermSecInstrCourseWork
Fall 20240110090
All 13 items for SCHI 7020

Nothing reported

None of the evaluation questions were reported for these records.

How to read this pageScores are out of 100 — Boston College's 1–5 agreement scale, ×20, the way these numbers were printed for years. Almost every class scores high on that scale (the median is about 90), so challenge and workload are shown as a rank against every instructor we hold rather than as a score; the raw figure is in the breakdown above. Neither describes quality, and neither is ever marked better or worse anywhere on this site. A dash means the question was not reported, and is never a zero. The position printed against each class is this instructor's place on that class's own board, computed from the same records the board itself is built from.