Koustubh Bhattacharjee

(Tutor #4720)

Rated 4.7/5 by students!

The tutor will teach you Physics, AP Physics 1, AP Physics 2, AP Physics C: Mechanics, AP Physics C: Electricity and Magnetism, GCSE Physics, A/AS Level Physics (9702) and more...

MPB Verified Tutor

Background Check done on 22nd November 2025

Students who work with Koustubh report improved clarity in translating mathematics into physics reasoning, faster problem-recognition in timed exams, and greater confidence when tackling multi-step AP and A-Level questions.

Who This Tutoring Is For

This tutoring is designed for students who need rigorous curriculum-aligned teaching, clear mathematics integration, and exam strategy for Western and international qualifications.

  • You are preparing for AP Physics 1 and need strong conceptual foundations with FRQ practice.
  • You are enrolled in AP Physics 2 and want confidence in fluids, thermodynamics and modern topics.
  • You are taking AP Physics C: Mechanics and require calculus-driven derivations and problem templates.
  • You are preparing for AP Physics C: Electricity & Magnetism and want vector calculus applied to E&M problems.
  • You are studying GCSE Physics or GCSE Math and need solid core-concept coverage and exam technique.
  • You are taking A-Level Mathematics (Pure, Mechanics, Statistics) and want rigorous problem solving and proof practice.
  • You are preparing for IB Physics HL/SL internal assessments and broader syllabus mastery.
  • You need help bridging Precalculus → AP Calculus AB/BC for calculus-based physics courses.

About Koustubh B.

Koustubh B. holds an M.S. in Physics from the University of Texas at Dallas and an M.S. in Astronomy from the Indian Institute of Space Science and Technology. He taught in a U.S. classroom at KIPP DC in Washington, D.C., where he gained direct experience with American secondary school routines, classroom management, lab-based pedagogy, and AP exam preparation standards. After his time in the U.S., Koustubh moved to online tutoring, where he applies classroom-tested strategies to one-on-one lessons tailored for international students and exam systems.

His academic and teaching background bridges rigorous subject knowledge and practical exam readiness. During graduate study he developed experience in mathematical modelling, astronomical data analysis, and advanced problem solving; as a classroom teacher he learned how to scaffold complex ideas for learners with varying prior knowledge. That combined perspective is central to his tutoring: he helps students move from conceptual understanding to accurate, exam-ready solutions with the exact mathematical steps examiners expect.

Koustubh teaches with clarity, patience, and an emphasis on transferable skills. He uses worked examples that reveal decision points — why one approach is chosen over another — and shows how to check answers using units, limits, and dimensional reasoning. Lessons always connect to the assessment format: multiple-choice strategies for speed and FRQ/structured-response techniques for maximum credit. For A-Level mathematics and AP Calculus, he integrates proofs, calculus reasoning, and series methods so students are comfortable applying these tools inside physics problems.


“Koustubh explained why a substitution worked rather than just showing the substitution — that step made subsequent problems much easier.”

— Student feedback shared with MPB


All sessions are conducted on Google Meet and coordinated by the My Physics Buddy team. Students may opt to record sessions and can request a handwritten or PDF summary after each lesson at no additional cost. WhatsApp is the primary booking channel; non-WhatsApp users may email tutoring@myphysicsbuddy.com.

Subjects Koustubh Teaches

Koustubh provides targeted teaching across high-school and early undergraduate syllabuses, with a strong mathematics integration to support physics problem solving.

Subject Level Notes
AP Physics 1 High School / AP Algebra-based mechanics; FRQ technique
AP Physics 2 High School / AP Fluids, thermodynamics, modern topics
AP Physics C: Mechanics Calculus-based / AP C Derivations, Lagrangian intuition, energy methods
AP Physics C: E&M Calculus-based / AP C Vector calculus, field problems, circuits
IGCSE / GCSE Physics Secondary Curriculum clarity & exam technique
A-Level Mathematics (Pure, Mechanics, Statistics) Advanced Secondary Rigour, proofs, applied maths for physics
Precalculus & AP Calculus AB/BC High School / AP Limits, derivatives, integrals, series

“He taught me how to read an AP problem like a short story — identify characters (variables), the setting (assumptions), and the plot (physical laws). That habit changed my exam pacing.”

— Parent feedback shared with MPB


Highlighted Teaching Approach

Koustubh organizes lessons around three linked phases: concept architecture (how the topic fits into the bigger picture), mathematical translation (building the algebra/calculus needed), and assessment skill (how to present answers that earn marks). He deliberately models the chain of reasoning examiners look for: statement of principle → modelling assumptions → equation derivation → units and sanity checks → boxed answer with concluding sentence.

Tools & Software Koustubh Supports

Sessions are intentionally low friction; tools are chosen to keep focus on reasoning and notation rather than software setup.

  • Google Meet — primary lesson platform and recording when requested
  • Shared whiteboard (Google Jamboard) — step-by-step derivations and diagrams
  • PDF / photographed handwritten summaries — concise post-session notes
  • Calculator protocols — guidance on when and which calculators to use for exams
  • Occasional MATLAB / Python snippets — for students preparing university-level modelling (by request)

How Sessions With Koustubh Work

Sessions follow a clear, repeatable learning loop that reduces cognitive load and builds transferable skills:

  1. Pre-Session Input: Student shares syllabus, recent exam/quiz, and one success goal via WhatsApp so the tutor can prepare targeted material.
  2. Diagnostic Warm-up: Short problem or conceptual question to reveal misconceptions.
  3. Concept Architecture: Tutor draws a concise map showing how this topic connects to prior concepts and later assessments.
  4. Mathematical Translation: Tutor demonstrates the algebraic/calculus steps required with careful attention to units and limiting cases.
  5. Guided Practice: Student solves problems with scaffolded prompts and immediate feedback.
  6. Assessment Drill: Timed MCQ or FRQ-style practice to build pacing and rubric-aware presentation.
  7. Summary & Assignments: Clear one-page summary and 3–5 targeted practice items with expected completion notes; WhatsApp clarifications available between sessions.

Sample 10-Week AP Physics C: Mechanics Roadmap

This sample roadmap shows how Koustubh sequences topics for steady progress toward an AP C exam. Plans are always adapted to the student’s starting point and weekly availability.

  • Week 1 — Vectors & Kinematics: Vector decomposition, parametric motion, coordinate choices.
  • Week 2 — Newton’s Laws & Free-Body Diagrams: Friction, constraints, systems of particles.
  • Week 3 — Work & Energy Methods: Conservative forces, potential energy curves, energy shortcuts.
  • Week 4 — Momentum & Collisions: Impulse, centre-of-mass frames, elastic/inelastic collisions.
  • Week 5 — Rotation I: Angular kinematics, moment of inertia, parallel axis theorem.
  • Week 6 — Rotation II: Torque, rolling, coupled translation/rotation problems.
  • Week 7 — Oscillations & Small Angle Approximations: SHM templates and energy approaches.
  • Week 8 — Central Forces & Gravitation: Orbits, effective potential, energy considerations.
  • Week 9 — Multi-concept FRQ Practice: Combined energy/momentum/rotation problems, timed practice.
  • Week 10 — Full Mock & Rubric Review: Timed mock, rubric analysis, targeted remediation.

Assessment & Progress Tracking

Koustubh uses a simple but effective set of metrics to quantify improvement: accuracy on timed problems, average time-to-setup (how long to identify the method), FRQ rubric score, and concept recall measured by brief oral summaries. Every fourth session includes a mini-mock scored against an exam rubric; students receive a short progress report highlighting strengths, recurring errors, and the next two action steps.

Recommended Authoritative Resources

To reinforce curriculum alignment and provide authoritative reference material, Koustubh recommends selective root sources for study and practice:

Sample Session Templates

60-minute Concept + FRQ Session

  • 0–10 min: Diagnostic & goal setting
  • 10–30 min: Focused concept architecture and worked example
  • 30–45 min: Student-led problem solving
  • 45–60 min: Timed FRQ + rubric feedback

90-minute Deep Repair Session

  • 0–15 min: Diagnostic & targeted recap
  • 15–55 min: Layered worked examples from easy → hard
  • 55–80 min: Guided independent problem solving
  • 80–90 min: Summary and assignment

30-minute Quick Fix

  • One focused problem or concept clarification with concise notes

Pricing & How MPB Works

MPB publishes starting platform pricing at USD 20/hr; specialist rates vary. Koustubh’s specific hourly fee is quoted privately via WhatsApp after MPB adds its flexible commission — this ensures scheduling and payments remain on the platform. To get a personalised quote, message the MPB team with your availability and goals. Do not contact tutors directly outside the MPB platform.

Frequently Asked Questions

How experienced is Koustubh in AP and UK exam systems?

Koustubh has formal graduate training in physics and astronomy plus classroom teaching experience at KIPP DC in Washington, D.C. This combination gives him curriculum familiarity with AP exam expectations and the ability to adapt to British-style GCSE/A-Level exam patterns for international students.

What student levels does he teach?

He teaches high school AP and GCSE students, A-Level mathematics learners, and early undergraduate students who need a strong mathematical grounding for physics. Lessons are tailored to each student’s readiness and exam targets.

Does he help with internal assessments and lab reports?

Yes. Koustubh guides experimental design reasoning, data interpretation, and how to present lab conclusions succinctly. He follows MPB’s academic integrity policy — providing guidance and structure rather than completing assessed submissions for students.

Can he help bridge to university-level physics?

Yes. For students moving to university-level courses, he provides calculus-based problem templates, numerical methods introductions, and modelling practice (basic Python/MATLAB by request) to prepare for first-year university coursework.

How are sessions scheduled across time zones?

Availability is confirmed via WhatsApp. Koustubh offers flexible evening and weekend blocks to accommodate learners in the US, UK, Canada, Australia, Gulf regions, and India. The MPB team coordinates scheduling and Google Meet links.


“Koustubh’s mock exam feedback was brutally useful — he showed exactly where I lost marks and how to phrase answers for partial credit.”

— Student testimonial shared with MPB


How To Prepare Before Your First Session

To make the first lesson high impact, please:

  • Share the syllabus, recent test/quiz and one core goal via WhatsApp.
  • Have a pen, paper and scientific calculator ready.
  • List three explicit goals (for example: “Master torque problems”, “Pass AP C mock”, “Bridge calculus gaps”).
  • Be ready to attempt a short diagnostic problem at the start of the session.

Policies & Academic Integrity

Koustubh follows MPB’s academic integrity policy. Tutoring focuses on building your skills so you can complete your own assessments. He provides methodological guidance, worked examples for practice, and rubric-aware feedback. He does not complete or submit coursework or exams for students.

Availability & How to Book

Availability confirmed via WhatsApp — typically within a few hours of contact. To book, send a WhatsApp message with: your course (e.g., “AP Physics C Mechanics”), exam date, current mock score (if any), and the one main challenge you want fixed. The MPB team will reply with a personalised quote, confirm slots, and provide the Google Meet link. Non-WhatsApp users may email tutoring@myphysicsbuddy.com.

WhatsApp to Check Availability and Book

Extended FAQ — Practical Study Advice

How should I study between sessions?

Complete the 3–5 targeted practice problems assigned, re-derive one key equation by hand, and write a one-paragraph summary explaining the physical meaning. Short, active practice beats long unfocused problem sets.

What if I need help with calculus used in physics?

Koustubh embeds compact calculus refreshers into physics lessons: derivatives for motion, integrals for work and fields, and basic series expansions when needed. He focuses on the minimum calculus required to solve physics problems, not abstract proofs unless a student requests deeper study.

Do you offer crash revision before exams?

Yes. Koustubh runs condensed revision blocks that prioritise high-yield problems, exam strategy, common rubric traps, and quick sanity checks for last-minute confidence building.

Are group lessons possible?

Primary focus is 1:1 tutoring. For small groups, MPB can arrange group pricing and coordinate sessions; contact the MPB team via WhatsApp to discuss requirements.


“After six weeks I could set up multi-step problems much more quickly. That change showed up in my mock scores.”

— AP C student feedback shared with MPB


Authoritative References & Recommended Reading

Use these root sources for official practice materials and advanced reference:

Qualifications & Credentials

Credential Institution Year
M.S. Physics University of Texas at Dallas Verified by MPB
M.S. Astronomy IIST Verified by MPB
Classroom Teaching (KIPP DC) KIPP DC Verified by MPB
All credentials verified by MPB before publication

Ready to Start? Book Koustubh Today

Koustubh combines advanced subject training, classroom-tested pedagogy from the US system, and a strong mathematics-first approach to physics tutoring. Students who work with him benefit from clearer problem setup, reliable exam presentation, and progressive confidence in both routine and novel problems.

When you message on WhatsApp, include: your course (for example “AP Physics C: Mechanics”), your exam or assessment date, your most recent mock score (if available), and the single topic you want fixed. This information allows a focused and productive first session.

WhatsApp to Book Your First Session with Koustubh

::contentReference[oaicite:0]{index=0}