Spring 2027

Trigonometry

Covers the graphs, properties and geometric significance of trigonometric functions of a real variable. Other topics include trigonometric equations and identities, trigonometric form of complex numbers, DeMoivre's theorem, and polar and parametric equations. Formulating, analyzing, solving, and interpreting mathematical and real-world problems using trigonometry.

offering recorded3 credits
Recorded instructors · Spring 2027 Eugenia Malitsky3.3/5

Summary

1 / 6

Past student reviews · Eugenia Malitsky

Attendance was mandatory due to weekly quizzes, with three dropped. Lectures were problem-heavy, and exam preparation materials were identical to the actual exams.

What you’ll be able to do

  • Define the sine, cosine, and tangent functions with respect to the unit circle and other geometric objects.

  • Identify the properties of trigonometric functions, including their domains and ranges.

  • Graph trigonometric functions using the concepts of amplitude, period, and phase shift.

  • Interpret and graph inverse trigonometric functions using restricted domains.

  • Solve equations using factoring, trigonometric identities, and other algebraic techniques.

  • Model and analyze real-world problems using trigonometric functions and their properties.

  • Support solutions and arguments by applying mathematical concepts and reason to justifications.

Source: UW Guide

Grade history

↗
average GPA
letter grades
A
AB
B
BC
C
D
F

All recorded terms · compare terms & instructors

Prerequisites

Course map

MATH 112 or placement into MATH 113. Not open to students with credit forMATH 114.

MATH 113 used by

“Used by” includes alternatives; linked courses may have other requirements. This is a best-effort interpretation; check the catalog requirements above.

Prerequisite text tree

Professors

Spring 2027
Adjusted rating
RMP difficulty
captured reviews
About this rating

Raw average: 3.16/5 from 76 quality ratings. The adjusted rating blends this with the UW review average (3.66/5), weighted as 20 additional ratings. Smaller samples stay closer to that average. Each captured review is counted once in the prior; this does not correct who chooses to leave a review.

For this course: 3.1/5 raw quality · 3.1/5 difficulty · 41 reviews

RMP profile ↗ · All captured review dates; profile matched by name.

Past student reviews · Eugenia Malitsky

Eugenia Malitsky's lectures were often described as boring and verbatim from the textbook, though she explained concepts simply and was helpful in office hours. Attendance was mandatory due to weekly quizzes, and students noted that exams were predictable if they did the homework and attended class.

Recent recorded grades — Spring 2025: 3.25 GPA, 55.8% A/AB (n=165 letter grades); Fall 2025: 3.24 GPA, 58.9% A/AB (n=141 letter grades); Spring 2026: 3.44 GPA, 70.2% A/AB (n=161 letter grades).

Historical instructors & teaching patterns

Past student reviews · Karen Duffy

Karen Duffy explained concepts clearly and wrote out processes on the board, which helped students understand answers. She held group quizzes on Tuesdays and individual quizzes on Thursdays, and provided extra practice and review sessions before exams. Students found the class manageable if they utilized these resources.

BILLY JACKSON is recorded teaching in Fall 2021, Fall 2022. Recorded history may be incomplete and does not establish a future schedule.

DIANE RIVARD is recorded teaching in Spring 2014. Recorded history may be incomplete and does not establish a future schedule.

EUGENIA MALITSKY is recorded teaching in Fall 2014, Spring 2015, Fall 2015, Spring 2016, Fall 2016, Spring 2017, Fall 2017, Spring 2018, Fall 2018, Spring 2019, Fall 2019, Spring 2020, Fall 2020, Spring 2022, Fall 2022, Spring 2023, Fall 2023, Spring 2024, Fall 2024, Spring 2025, Fall 2025, Spring 2026. Recorded history may be incomplete and does not establish a future schedule.

KAREN DUFFY is recorded teaching in Fall 2022, Fall 2023, Spring 2024. Recorded history may be incomplete and does not establish a future schedule.

MEGHAN DE WITT is recorded teaching in Spring 2009, Fall 2009, Spring 2010, Fall 2010, Spring 2011. Recorded history may be incomplete and does not establish a future schedule.

OUMAR KABA is recorded teaching in Fall 2011, Spring 2012, Fall 2012, Spring 2013, Fall 2013, Spring 2014, Spring 2015. Recorded history may be incomplete and does not establish a future schedule.

RAHUL MAHAJAN is recorded teaching in Fall 2022, Spring 2023. Recorded history may be incomplete and does not establish a future schedule.

XIANGHONG GONG is recorded teaching in Spring 2008, Fall 2010. Recorded history may be incomplete and does not establish a future schedule.

Recorded history may be incomplete and does not establish a future schedule.

Calendar & sections

Spring 2027

Schedule loads here as you scroll.

SectionModeEnrolled / capacityWaitlist
LEC 002Classroom Instruction0 / 550
LEC 001Classroom Instruction0 / 550
LEC 003Classroom Instruction0 / 550

Times are Central. Select a meeting for details; export includes recorded dates for the selected sections. Enrollment reflects scan time.

Meeting source records
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Student experience

the class

Past student reviews · Eugenia Malitsky

Students described the course as straightforward, noting that Malitsky explained concepts simply and prepared them well for exams through homework and attendance.

Recent recorded grades — Spring 2025: 3.28 GPA, 57.3% A/AB (n=281 letter grades); Fall 2025: 3.29 GPA, 63.4% A/AB (n=309 letter grades); Spring 2026: 3.39 GPA, 68.6% A/AB (n=264 letter grades).

difficulty & workload

Past student reviews · Eugenia Malitsky

Attendance was mandatory due to weekly quizzes, with three dropped. Lectures were problem-heavy, and exam preparation materials were identical to the actual exams.

Past student reviews · Eugenia Malitsky

One student found the lectures boring because Malitsky read from the textbook verbatim, making attendance feel unnecessary outside of exam preparation.

Grades

Historical instructor

Spring 2027 · Projected

Before grades are released

– average GPA

Approximate 80% prediction interval

About this estimate

The course’s semester-average GPA, not an individual student’s grade. The center uses 5 same-season terms, weighted toward recent results.

The range uses the finite-sample 80th-percentile rank of absolute errors from earlier same-season forecasts. Each forecast uses only records from earlier terms. At least four forecasts are required; bounds are rounded outward and limited to 0–4. This is an empirical estimate: changing instructors or grading policies can reduce its coverage.

8 earlier forecasts · 0.32 GPA average error.

Grades over time

Through Spring 2027

More grade details Grade mix, volume & source data

Where this course fits relative to

Latest available grades · Spring 2026 · all course levels

GPA

Higher than % of other courses in this group.

Course GPAs · red marks this course’s range

letter grades

More recorded grades than % of other courses in this group.

Typical course in this group: letter grades.

About this comparison

1280 courses over the same term, each with at least 30 recorded letter grades. Cross-listed courses count once. GPA is not a measure of difficulty or teaching quality. The typical course is the median by recorded grade count; tied values are not counted as lower. Grade counts describe course scale, not unique students or typical section size.

Descriptions compare GPA with this group’s average: at least 0.20 higher or lower; otherwise close to average. Section size uses median recorded enrollment: small up to 30, mid-sized 31–99, large 100+. Lectures and discussion/lab sections are described separately.

Sources & history

UW–Madison

Catalog & offerings

Descriptions, prerequisites, and recorded course offerings.

Catalog observation history

Observations at scan time; dates do not imply when a catalog change took effect.

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Selected offering source records
MATH 113 · Spring 2027

Trigonometry

Recorded 2026-10-14
Raw records 
[
  {
    "run_id": "20261014T203208-0851c9a1",
    "semester": "1274",
    "observed_at": "2026-10-14 17:50:09.728220+00:00",
    "offering_id": "1274:600:011599",
    "course_id": "MATH 113",
    "course_uid": "course_3c64a84a8de25196b895fe0d",
    "term_id": "1274",
    "source_course_id": "011599",
    "source_subject_id": "600",
    "title": "Trigonometry",
    "credits_min": 3,
    "credits_max": 3,
    "typically_offered": "Fall, Spring, Summer"
  }
]
Rate My Professors

Student reviews

Original comments behind the course and instructor summaries.

Read original reviews
Download part 1
Madgrades

Grade history

Recorded grade distributions by term, section, and instructor.

Explore recorded grades
Dataset & model

Recorded 2026-10-14

View the dataset on Hugging Face
Model outputs & technical records
Qwen/Qwen3.8-27B
LLM outputs across runs
Download part 1
Full model traces

Recorded model configuration, reasoning, and tool conversations.

Download part 1Download part 2Download part 3
Model & dataset provenance 
{
  "model": "Qwen/Qwen3.8-27B",
  "model_revision": "1d4bf0f2ff6012fd82039f2fa52739d0dd7c60c0",
  "task_version": "17",
  "output_id": "6ec93a6054397f24402a99a4cacabb0845c9ee009c1ec55bbe8f1c47e1bada81",
  "requirements_status": "valid",
  "dataset_revision": "fc1811fa52e581ea57a35c0cf3343f8740a8ffbf",
  "observed_at": "2026-10-14 17:50:09.728220+00:00"
}