Carney Curve

Boston College course evaluations · Fall 2021 through Spring 2026, ranked class by class

Top of the board1.PRTO 3300982.UNAS 3348903.MUSP 1670944.COMM 1060925.MUSP 1660926.ECON 9902887.BSLW 2299918.PHIL 4932939.COMM 19029010.UGMG 10109311.MUSP 26009912.TMPS 803495
How this list is ordered

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

Juliana Belding

Professor of the Practice, Assistant Chair for Undergraduates · Mathematics

How the curve score is built
82Teaching92 raw · 67th percentile of BC instructors
±0Easiness adjustmenteasiness 75 · 55 raw workload · lighter than 41% of BC instructors
82Curve scorethe teaching curve ±0 for the workload · at most ±6 either way

Boston College's ratings are bunched at the top — the median instructor averages about 88 out of 100 on the raw scale, and 44% of them clear 90 — so a raw score cannot separate anybody. Every figure here is ranked against BC instructors and that rank is re-expressed out of 100, which is what turns a raw 88 — the middle of the university — into a figure that says where somebody actually stands. On this scale 77 is the median, 84 the top quarter and 91 the top tenth. Workload is then an adjustment on top of that, worth nothing at all for an ordinary one. Lighter work than 41% of BC instructors.

Records30
Classes13
TermsFall 2021 – Spring 2026
On each class's board
MATH 11002nd of 47 instructorsMATH 8890only instructor on recordMATH 11901st of 4 instructorsMATH 22102nd of 18 instructorsMATH 22021st of 25 instructors ProvisionalMATH 22161st of 15 instructors ProvisionalMATH 1006only instructor on record ProvisionalMATH 11011st of 26 instructors ProvisionalMATH 1113only instructor on record ProvisionalMATH 11912nd of 5 instructors ProvisionalMATH 22902nd of 2 instructors ProvisionalMATH 22911st of 2 instructors ProvisionalMATH 44551st of 3 instructors Provisional
Sources
BC evaluations9430 records · weight ×1.0 · Fall 2021 – Spring 2026
RateMyProfessors9022 ratings · weight ×2.0 · 86% would take again · difficulty 76/100 for the person
Student reviews—no reviews — not counted
How is this worked out?

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.

Collected from RateMyProfessors, not from Boston College: 22 ratings, 86% would take again, difficulty 76 out of 100. Difficulty is not a quality signal in either direction — a harder course is not a worse one.

Anyone can post there — no @bc.edu check and no enrolment check — so it is weighted alongside the evaluation data, never above it.

Where challenge and workload come from
Challenge
60thMore challenging than 60% of BC instructorsranked against every one we hold
90BC — “Intellectually Challenging”30 records · raw score out of 100

Boston College's own “intellectually challenging” question. It is not a measure of difficulty, grading or workload. 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. RateMyProfessors separately rates this instructor 76 out of 100 for difficulty — that IS a difficulty measure, but it is about the person across everything they teach, not about any one class, so it is shown here rather than folded into the number above.

Workload
59thMore work than 59% of BC instructorsranked against every one we hold
55BC — “Workload”30 records · raw score out of 100

One of Boston College's five workload bands, not a number of hours. Higher means more work, not worse. 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.

Ratings

All 13 items · 30 records
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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

13 classes · 30 sections
MATH 1100Calculus ICurve81Easy68Chal60th
Board2nd of 47 instructors
6 sections · course rated 78/100 · all 13 items
TermSecInstrCourseWork
Fall 202401938060
Fall 202402927860
Fall 202302927660
Fall 202309906860
Fall 202201938360
Fall 202202958260
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 8890Graduate Teaching Seminar ICurve96Easy99Chal2nd
Boardonly instructor on record
5 sections · course rated 88/100 · all 13 items
TermSecInstrCourseWork
Fall 20250110010020
Fall 20240110010040
Fall 2023018060—
Fall 202201100100—
Fall 2021011008020
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 1190Fundamentals of Mathematics ICurve82Easy68Chal40th
Board1st of 4 instructors
4 sections · course rated 86/100 · all 13 items
TermSecInstrCourseWork
Fall 202501958660
Fall 202502898260
Fall 202101918660
Fall 202102968960
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 2210Linear AlgebraCurve86Easy68Chal75th
Board2nd of 18 instructors
4 sections · course rated 90/100 · all 13 items
TermSecInstrCourseWork
Spring 202502969460
Spring 202504959360
Spring 202402958560
Spring 202404948760
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 2202Multivariable CalculusCurve83Easy68Chal79th
Board1st of 25 instructors Provisional
2 sections · course rated 84/100 · all 13 items
TermSecInstrCourseWork
Spring 202309938460
Spring 202310948360
Instructor4
Course3
Feedback2
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad. 1 of 13 questions were not reported and are left out rather than shown as zero.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 2216Introduction to Abstract MathematicsCurve84Easy68Chal93rd
Board1st of 15 instructors Provisional
2 sections · course rated 85/100 · all 13 items
TermSecInstrCourseWork
Spring 2026019691—
Spring 202602928060
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 1006Thinking Like a MathematicianCurve74Easy84Chal3rd
Boardonly instructor on record Provisional
1 section · course rated 80/100 · all 13 items
TermSecInstrCourseWork
Summer 202501848040
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 1101Calculus IICurve93Easy68Chal76th
Board1st of 26 instructors Provisional
1 section · course rated 85/100 · all 13 items
TermSecInstrCourseWork
Spring 202201988560
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 1113Infinite Sequences and SeriesCurve82Easy—Chal—
Boardonly instructor on record Provisional
1 section · course rated 75/100 · all 13 items
TermSecInstrCourseWork
Fall 2023019275—

Nothing reported

None of the evaluation questions were reported for these records.

MATH 1191Fundamentals of Mathematics IICurve79Easy68Chal90th
Board2nd of 5 instructors Provisional
1 section · course rated 80/100 · all 13 items
TermSecInstrCourseWork
Spring 202601918060
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 2290Number Theory for TeachersCurve80Easy68Chal60th
Board2nd of 2 instructors Provisional
1 section · course rated 84/100 · all 13 items
TermSecInstrCourseWork
Spring 202201928460
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 2291Geometry for TeachersCurve97Easy68Chal60th
Board1st of 2 instructors Provisional
1 section · course rated 96/100 · all 13 items
TermSecInstrCourseWork
Spring 2025011009660
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

MATH 4455Mathematical Problem SolvingCurve86Easy68Chal65th
Board1st of 3 instructors Provisional
1 section · course rated 89/100 · all 13 items
TermSecInstrCourseWork
Fall 202501958960
Instructor4
Course3
Feedback3
Workload & Challengenot ratings

Bars are ranks, not raw scores. Nothing here is graded good or bad.

What each item asks
Explains Clearly
The instructor was effective at creating an understanding of difficult subject matter.
Available
The instructor was available for help outside of class.
Motivating
The instructor motivated me to do my best work.
Sparks Interest
The course stimulated my interest in the subject matter.
Organized
The course was well organized.
Clear Goals
The learning objectives for the course were clear.
Useful Later
What I learned is applicable beyond this course.
Assignments
Assignments and exams contributed to my learning.
Fast Feedback
I received feedback on my work in a timely manner.
Useful Feedback
The feedback I received on my work was meaningful.
Workload
How 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.
Challenge
The course was intellectually challenging.
Attendance
Attending class was necessary to do well in this course.
Why these numbers are curved

Both the number and the bar are the rank against every comparable record we hold, printed back out of 100. BC's questions all have a median around 4.5, so on the raw scale every cell here would read in the high eighties and every bar would be nearly full — thirteen numbers that tell you nothing. Each cell prints its raw BC figure and its percentile underneath, so nothing is hidden by the transform. 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.

How each position is worked out

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.

How to read this page

The big number is a CURVE score, not Boston College's average. BC's own scale is bunched at the top — the median instructor averages about 88 out of 100 on it and 44% of them clear 90 — so this site ranks the average against every instructor we hold and prints that rank back out of 100. A 77 is the median, 84 is the top quarter, 91 is the top tenth. On top of that sits an EASINESS adjustment worth up to about ±6 points — the workload rank turned over, so a lighter class gains and a heavier one loses, while an ordinary workload is worth exactly nothing — and the adjustment is printed on the card, signed. Every raw BC average and every percentile behind the curve is in the strip under the plate, and the thirteen items below are shown the same way, curved, with the raw figure on each cell. Challenge is not difficulty and workload is not hours; neither is marked better or worse. 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.