Every past-paper MCQ from 2016–2023 solved on video. Topic playlists for every unit. Daily practice problems. And the misconception fixes that save real marks. Built by Dr. N. Rathankar Rao — IBDP examiner-level clarity, free for every student.
Pick the door that matches you. Everything on this site is organised around these three journeys.
Go straight to solved past-paper MCQs, year by year (2016–2023, SL & HL, both timezones) — each question solved on video in about a minute.
Open Past Papers →Find your unit (A–E), pick the exact sub-topic — Kinematics, Fields, SHM, Quantum — and binge the matching playlist of worked problems.
Browse Topics A–E →Use the free AI mentors trained on IB criteria, watch sample IA walkthroughs, and master the data booklet before your next draft.
Open Resources →This is how top scorers use this site every week.
Open your unit in Topics and watch the playlist for the exact sub-topic you're studying — P1 for MCQ style, P2 for structured questions.
Go to Topics →Solve one Daily Practice Problem every morning, then drill real past-paper MCQs from your target year and timezone.
Go to Past Papers →Most lost marks come from predictable traps. The Misconceptions series shows you the trap, why it works on you, and how to never fall again.
Go to Misconceptions →
IBDP Paper 1 MCQs 2016–2023 (SL & HL, all timezones) plus AS-Level Paper 1 — every question solved on video.
Explore →90+ curated playlists mapped to the 2025 syllabus: Space, Time & Motion → Nuclear & Quantum. Paper-1 and Paper-2 styles separated.
Explore →The signature series: common errors analysed, root causes exposed, correct thinking rebuilt — the fastest way to stop repeating mistakes.
Explore →
A fresh worksheet at 9:00 AM daily for IBDP and MYP. Video solutions the same evening. Reflect, review, refine.
Explore →IA Mentor, EE Mentor and TOK Mentor chatbots, sample IA walkthroughs, data booklet guide and the IB→IIT bridge series.
Explore →Deep-learning simulation sets, classroom activity designers and AI tools that save preparation time — free for fellow educators.
Explore →They aren't struggling because physics is too hard — they're falling into common, predictable misconceptions. This channel was built to find and fix them, one video at a time.
Deep-dives written for students — where stories meet mark schemes. See all posts →
