Woody Calculus · University of Colorado Boulder studentsFrom Calculus II to advanced proofs

CU Boulder mathematics.
Master the method.

Start with 7 days free in the Woody Calculus Mastery Lab.

Video lessons. Complete worked solutions. Direct guidance. Find the method that fits your CU Boulder assignment, whether your syllabus starts with MATH or APPM.

7 days free, then $89/month. Private one-on-one sessions are separate.

Look inside the Mastery Lab Explore private one-on-one instruction ↓

Mathematics support for CU Boulder

Find your subject, then bring your course and current question to the Mastery Lab.

Start with your course: MATH 2300; APPM 1360 for Calculus II, then find your multivariable or differential-equations route in the course guide below.

See what you are joining · 10-minute walkthrough

Look inside the Mastery Lab.

See the subject classrooms, complete worked solutions, and ways to ask Woody for help. Find out how to turn the Lab into a study routine for your current CU Boulder course.

Woody’s guided tour of the Mastery Lab.
Watch on YouTube if the player does not load
01

See every step.

See the setup, method choice, solution, and checks. Learn what to look for when a new problem changes the details.

02

Ask Woody.

Get direct chat guidance, community support, and live Q&A when available. Bring the step you cannot explain.

03

Build independence.

Train pattern recognition, clean setup, formula fluency, and proof writing through structured practice.

Put the Lab to work on your own course.

Explore the lessons, study a worked solution, and bring Woody your next question.

Start Your 7-Day Free Trial

7 days free, then $89/month.

From your CU Boulder course to your next study session

Know the first step.
Understand the next one.

CU Boulder offers both MATH and APPM routes through core mathematics.

MATH 2300/2400 and APPM 1360/2350 lead through calculus with different course structures. Use your department prefix as well as the number when choosing examples and preparing for an exam.

In APPM 2360, linear algebra supports the differential-equations work. MATH 3430 takes a different route through ODEs, while MATH 3011 and 3140 introduce more proof-based reasoning. The aim is the same: make the first decision clear and justify what follows.

Bring one question. Build a method.

  • Calculus II: What clue suggests the technique?
  • Calculus III: What does the region look like?
  • Differential equations: Which method fits the structure?
  • Proofs: What do the assumptions let you establish?

Bring your course number, current assignment, and next exam date. Practice the reasoning, then test it independently.

University of Colorado Boulder course guide

Know your course.
Build the method behind it.

Find the course you are taking. Open its details for CU Boulder’s course names, numbers, and focused ways to prepare.

MATH 2300; APPM 1360

Calculus II

For MATH 2300 and the related options below: choose the technique before doing the algebra. Build a repeatable process for integrals, applications, and series.

With Woody: Explain the clue, choose a method, and check the result.

Course details and topics
  • MATH 2300 — Calculus 2
  • APPM 1360 — Calculus 2 for Engineers
Topics to prepare
  • Substitution and integration by parts
  • Trigonometric substitution and partial fractions
  • Volumes by shells and washers
  • Improper integrals and convergence tests
  • Taylor series and approximation
More Calculus II resources →
MATH 2400; APPM 2350

Calculus III & Vector Calculus

For MATH 2400 and the related options below: turn a picture into a setup you can explain. Practice coordinates, bounds, and the meaning of each integral.

With Woody: Draw the region, label the variables, and justify the theorem you use.

Course details and topics
  • MATH 2400 — Calculus 3
  • APPM 2350 — Calculus 3 for Engineers
Topics to prepare
  • Partial derivatives and the chain rule
  • Optimization
  • Double and triple integrals
  • Line and surface integrals
  • Green, Stokes, and divergence theorems
More Calculus III & Vector Calculus resources →
MATH 3430; APPM 2360

Differential Equations

For MATH 3430 and the related options below: an equation becomes more manageable when you recognize its structure. Train the first decision before memorizing steps.

With Woody: Identify the equation type, solve systematically, and verify the initial conditions.

Course details and topics
  • MATH 3430 — Ordinary Differential Equations
  • APPM 2360 — Introduction to Differential Equations with Linear Algebra

APPM 2360 combines differential equations and linear algebra; MATH 3430 is a distinct mathematics-department route.

Topics to prepare
  • First-order methods
  • Higher-order linear equations
  • Systems and eigenvalues
  • Laplace transforms where assigned
  • Qualitative behavior and stability
More Differential Equations resources →
MATH 2130 / 2135 / 3130 / 3135; APPM 3310

Linear Algebra

For MATH 2130 and the related options below: connect the calculation to the concept. Row reduction matters more when you understand what it says about the system or transformation.

With Woody: Translate between matrices, equations, vector spaces, and proofs.

Course details and topics
  • MATH 2130 — Introduction to Linear Algebra for Non-Mathematics Majors
  • MATH 2135 — Introduction to Linear Algebra for Mathematics Majors
  • MATH 3130 — Introduction to Linear Algebra
  • MATH 3135 — Honors Introduction to Linear Algebra
  • APPM 3310 — Matrix Methods and Applications
Topics to prepare
  • Linear systems and row reduction
  • Span, independence, and bases
  • Linear transformations
  • Eigenvalues and diagonalization
  • Inner products and orthogonality
More Linear Algebra resources →
MATH 3140 / 4140

Abstract Algebra

For MATH 3140 and the related options below: work from the definitions and make every implication explicit. Build proofs that establish exactly what the question asks.

With Woody: Identify the structure, unpack the assumptions, and choose the theorem that fits.

Course details and topics
  • MATH 3140 — Abstract Algebra 1
  • MATH 4140 — Abstract Algebra 2
Topics to prepare
  • Groups and subgroups
  • Homomorphisms and quotients
  • Rings and ideals
  • Fields and polynomials
  • Direct proof and counterexamples
More Abstract Algebra resources →
MATH 3011 / 4001

Real Analysis & Advanced Calculus

For MATH 3011 and the related options below: move from a familiar calculus fact to a precise argument. Practice controlling quantities and checking every hypothesis.

With Woody: Write the target statement first, then build the estimates and logical steps.

Course details and topics
  • MATH 3011 — Analysis 1
  • MATH 4001 — Analysis 2
Topics to prepare
  • Sequences and limits
  • Continuity and compactness
  • Epsilon arguments
  • Differentiation and integration
  • Convergence of functions
More Real Analysis & Advanced Calculus resources →
MATH 4140

Galois Theory

For MATH 4140: connect field extensions with the symmetries of polynomial roots. Keep the fields, groups, and maps clearly labeled.

With Woody: Draw the field relationships and explain how the correspondence applies.

Course details and topics
  • MATH 4140 — Abstract Algebra 2

Galois theory is a possible topic in Abstract Algebra 2. The instructor’s syllabus determines the selection of advanced algebra topics.

Topics to prepare
  • Field extensions and degrees
  • Minimal and irreducible polynomials
  • Splitting fields
  • Automorphisms and fixed fields
  • Galois correspondence
More Galois Theory resources →
MATH 3110

Number Theory

For MATH 3110: learn to move between arithmetic examples and general arguments. A clean congruence calculation should lead to a justified conclusion.

With Woody: State the divisibility claim, select the tool, and explain why it works.

Course details and topics
  • MATH 3110 — Introduction to Theory of Numbers
Topics to prepare
  • Divisibility and the Euclidean algorithm
  • Congruences
  • Prime factorization
  • Integer equations
  • Proofs using arithmetic structure
More Number Theory resources →

Course names and numbers checked against official university sources on 2026-09-25. Honors and graduate options are identified below. Follow your syllabus for the topics and current offering of your section.

Official course references

Make progress on this week’s topic.
Open the Lab, study the method, and ask your next question.

Start Your 7-Day Free Trial
Turn a worked solution into a method you own

Recognize the pattern.
Choose the method.
Do the work.

A solution can look clear while you are reading it and still be hard to reproduce. Train the decisions that connect one step to the next, then apply them to a different problem.

Build clean setup, formula fluency, and complete reasoning alongside your calculations. The same habits support an integration problem, a matrix computation, or a proof.

Read Woody’s complete study method →
  1. Bring your current CU Boulder work.

    Start with your course number, syllabus, current problem, and next exam date. Choose the lesson that addresses the decision you need to understand.

  2. Explain the first decision.

    For an integral, name the clue that suggests the technique. For a differential system, explain the matrix setup. For a proof, identify what you know and what you must show.

  3. Rehearse the reasoning.

    Reproduce a complete solution 3–5 times while saying the steps aloud. Compare your work, correct errors, and explain why each step is valid.

  4. Solve a fresh problem.

    Put the example away and try another problem. Bring Woody the precise step that stops you, then return to the work and apply what you learned.

Make your first seven days useful

Give your free trial a purpose.
Start with one CU Boulder problem.

Choose a problem you need to understand this week. Watch a complete solution, explain the setup, and practice the method. Use your questions to guide your next step.

  1. Find your subject. Match your CU Boulder topic to a lesson.
  2. Study a complete solution. Follow the choices as well as the calculations.
  3. Ask Woody. Bring the step you cannot yet explain.
  4. Test your understanding. Solve a new problem without the example.

7 days free, then $89/month. Private sessions are separate.

More about the Mastery Lab and membership

Woody Calculus mathematics support for CU Boulder students
CU Boulder mathematics support: from calculus methods to advanced proofs.
When you want individual instruction

Private instruction for CU Boulder students.

Work one-on-one with Woody, backed by 25+ years teaching university mathematics. Develop your understanding, study habits, and exam strategy in Calculus II and above, differential equations, linear algebra, abstract algebra, real analysis, Galois theory, or number theory.

Get weekly one-on-one guidance, personalized exam strategy, detailed feedback, and accountability for your course.

Begin in the Mastery Lab. Students in Calculus II, Calculus III, Differential Equations, Linear Algebra, Abstract Algebra, Real Analysis, Galois Theory, Number Theory, and related advanced courses may then apply for individual instruction.

Private sessions are separate from membership and carry a premium fee. Availability is limited, application and approval are required, and Lab enrollment does not guarantee a private place.

Have a question about the right next step? Contact Woody directly.

The path to private instruction
  1. Join the Mastery Lab.
  2. Bring your course and goals.
  3. Apply for weekly private sessions.
Start Your 7-Day Free Trial

Already a Lab member? Read the private instruction details.

Questions from CU Boulder students

Know what you are joining.

Where should I start if I need a CU Boulder calculus tutor?

Start your 7-day free trial in the Mastery Lab. Choose the topic you need this week, study a complete example, and try another problem. Ask Woody about the step you cannot yet explain.

Does this cover both APPM and MATH at CU Boulder?

Yes. The guide identifies both routes, including APPM 1360, 2350, and 2360 and MATH 2300, 2400, and 3430. Include the prefix when you ask for help; the syllabi are not interchangeable.

Can I get help with volumes by shells and washers?

Yes. Draw the region and axis of rotation first, then compare a slice perpendicular to the axis with a shell parallel to it. Explain your radius, height, and bounds before integrating.

Do you help with advanced mathematics and proofs?

Yes. Linear algebra, abstract algebra, real analysis, Galois theory, and number theory are core areas of Woody’s instruction. For advanced or graduate courses, bring the syllabus and specific topic to check the fit.

What does the Mastery Lab include, and what does it cost?

Start with 7 days free, then $89 per month. Membership includes subject video lessons, complete worked solutions, community support, direct chat guidance, and live Q&A when scheduled. Private one-on-one sessions are separate.

Does every course number have its own recorded classroom?

Available recordings vary by subject and topic. Course references identify mathematics you can bring to Woody; they do not promise a separate recording archive for every class. Use the tour and trial to see how the resources fit your syllabus.

Is private instruction available for CU Boulder students?

Yes, with limited availability. Join the Mastery Lab first, then apply for weekly private instruction. Sessions have a separate premium fee and require available space and approval. Membership does not guarantee a private place.

What if I need help with Calculus I or an earlier course?

Woody recommends Blue Hovatter for private tutoring through Calculus I. You can also review the earlier calculus resources linked below.

Is Woody Calculus affiliated with University of Colorado Boulder?

No. Woody Calculus is an independent education service, not affiliated with, sponsored by, or endorsed by the university. Course references identify the students and subjects served.

Help through Calculus I

Build the foundation for what comes next.

For prerequisite review, explore the Calculus I resources. MATH 1300 or APPM 1350 is an earlier calculus foundation; Woody’s main instruction here starts with Calculus II.

Need private tutoring through Calculus I? Woody recommends Blue.

For college algebra, trigonometry, precalculus, and Calculus I, explore private tutoring with Blue Hovatter.

Visit Blue’s tutoring website →
Keep learning

Explore the idea behind the method.

Use the Math Library for explanations and connections, then return to your current CU Boulder problem.

Course and study resources
Other universities supported
Official references and student reviews
CU Boulder mathematics support · 25+ years teaching university mathematics

Learn the method.
Bring it to your CU Boulder work.

Start with the question you need to understand. Follow the reasoning, ask Woody, and put the method into practice. Your first seven days in the Mastery Lab are free.

7 days free, then $89/month.

★★★★★ 5-star Google reviews · 5.0 / 5 RateMyProfessors