Press

Renzo Diaz press kit: biography, facts and original IB charts

For journalists and editors writing about the IB Diploma Programme (IB DP), international schools or university entry: a biography in two lengths, the facts with the record behind each one, the topics Renzo Diaz can speak on, and original charts free to reuse with credit.

Press enquiriesrenzo@ascentiq.io

Biography

Renzo Diaz biography, in a short and a long version

Either version can be used as it stands. When shortening, please keep the degree, the dates and the two results in the form written here: each one matches its record.

Short version

67 words

Renzo Diaz is an engineer and IB Mathematics and Physics tutor, based in Italy and teaching one-to-one online worldwide. He holds an M.Sc. in Energy Engineering from the Politecnico di Milano and teaches IB Mathematics (AA and AI) and IB Physics at both levels. Teaching IB since 2016. Seven years of IB reviews you can check on Google — and named results with the documents behind them.

Long version

163 words

Renzo Diaz is an engineer and an independent tutor of IB Mathematics and IB Physics. He teaches one student at a time, live online, in English or Spanish, for families at international schools in Italy and abroad.

He holds a B.Sc. in Mechanical and Electrical Engineering from the Universidad Nacional de Ingeniería in Lima and an M.Sc. in Energy Engineering from the Politecnico di Milano, completed in 2020. He has taught IB students since April 2016: in Lima, in Milan from March 2018 and online worldwide since 2020.

His teaching follows a diagnostic method informed by root cause analysis in engineering: diagnose the cause of a difficulty, re-engineer the explanation around the student’s reasoning, then verify that the understanding transfers to new problems. Two students’ IB results are documented by name, among them 7 in both IB Math AI SL exam papers (May 2024) and a final 7 in IB Physics SL (May 2025). His public Google reviews date back to June 2020.

Fact sheet

Facts about Renzo Diaz, each with the record behind it

Renzo Diaz fact sheet: each fact, its detail and where to check it.
Teaching IB since April 2016In Lima from April 2016, in Milan from March 2018 and online worldwide since 2020. The earliest dated record is an IB Mathematics student’s email of 8 April 2016.The dated record on the About page
M.Sc. in Energy Engineering, Politecnico di MilanoThesis record dated 24 July 2020. Before it, a B.Sc. in Mechanical and Electrical Engineering at the Universidad Nacional de Ingeniería, Lima.The thesis record in the Politecnico’s repository
Courses taughtIB Mathematics: Analysis and Approaches (AA) and Applications and Interpretation (AI), at Standard Level (SL) and Higher Level (HL); IB Physics at SL and HL; Cambridge IGCSE Mathematics and Physics.The IB Maths and IB Physics pages
LessonsOne-to-one, live online, in English or Spanish; he also speaks Italian. Based in Italy.A lesson, step by step
Documented IB result, May 20247 in both IB Math AI SL exam papers, from a Grade 3 at the start of the IB DP.The case page, with its sources
Documented IB result, May 2025A final 7 in IB Physics SL, from a Grade 3 on the first IB DP report card.The case page, with its sources
Public Google reviewsA 4.9 / 5 rating on Google from 19 public reviews (as of October 2026), with a review in every calendar year since June 2020.Every review, quoted by date
ProfilesLinkedIn, ORCID, the Google Business Profile and the thesis record, each listed with what it shows.Profiles to check on the About page

Topics

Topics Renzo Diaz can speak on: IB exams, IB subject choices and university entry

Each topic rests on an analysis already published in the Index, the site’s reference library for IB and IGCSE families, with its sources named. The Index is in English.

  1. The first IB Physics exams on the 2025 guide

    Which themes carried the marks in the May 2025 papers, set against the teaching hours the guide gives each theme.

    The 2025 marks by theme

  2. IB Maths AA or AI, and what universities ask for

    How 30 UK programmes in engineering, computer science, economics and physics treat the two IB Mathematics courses for 2027 entry, read from the universities’ own course pages.

    What universities require

  3. The IB Diploma in Milan’s international schools

    Which international schools in and around Milan offer the IB Diploma Programme, read from the IB’s own directory, and the routes into it.

    International schools in Milan

  4. How families can check a tutor’s claims

    How to tell a claim a family can check from one it has to trust: dates set by a platform, named credentials, and course knowledge tested on its own.

    How to choose a tutor

  5. An engineer’s approach to teaching mathematics and physics

    How training in engineering shapes a lesson: diagnose the cause of a difficulty, re-engineer the explanation, verify that the understanding transfers.

    The method

Charts

Original IB charts by Renzo Diaz, free to reuse with credit

Renzo Diaz drew these charts for the Index from the sources named under each one: official IB, UCAS and university documents, or his own count of them. Each opens at full size, 1600 pixels wide.

The charts are licensed under Creative Commons Attribution 4.0 (CC BY 4.0): they may be republished or adapted, in print or online, with the credit line below and, online, a link to the article the chart comes from.

Credit lineChart: Renzo Diaz, renzo-diaz.com (CC BY 4.0)

  • How the IB Math AA HL grade is weighted

    Bar split into four parts showing how the IB Math AA HL grade is weighted: Paper 1 30%, Paper 2 30%, Paper 3 20% and the Exploration 20%; the three external papers together are 80% of the grade.

    Source: IB Mathematics: analysis and approaches guide, assessment outline (first assessment 2021).

    The analysisFull size

  • The IB Mathematics rule of 30 UK programmes, 2027 entry

    Bar of 30 UK programmes split by their IB Mathematics rule for 2027 entry: 11 require or ask for AA, 7 accept AI with AA preferred, 10 accept AA or AI with no preference, 2 state no rule; AI is accepted at 17 of 30.

    Source: Renzo Diaz’s classification of the universities’ course pages, read 7 October 2026.

    The analysisFull size

  • IB Physics SL and HL: teaching hours and component weights

    Two charts for IB Physics: recommended teaching hours, 150 for SL and 240 for HL; and the weight of the grade at both levels, Paper 1 36%, Paper 2 44% and the internal investigation 20%.

    Source: IB Physics guide (first assessment 2025).

    The analysisFull size

  • IB Physics HL, 2025: marks by theme against teaching hours

    Two bar charts for IB Physics HL in 2025, by theme. Share of the Paper 1A and Paper 2 marks: A 23.2%, B 18.6%, C 16.2%, D 20.6%, E 21.4%. Share of the teaching hours: A 23.3%, B 17.8%, C 16.1%, D 21.1%, E 21.7%.

    Source: Renzo Diaz’s count of the 2025 papers, and the IB Physics guide.

    The analysisFull size

  • Equations in the IB Physics data booklet, by theme

    Two bar charts of the equations printed in the IB Physics data booklet by theme. Standard and higher level, 70 equations: A 21, B 28, C 10, D 8, E 3. Additional higher level, 60 equations: A 21, B 8, C 9, D 13, E 9.

    Source: Renzo Diaz’s count of the data booklet (first assessment 2025), version 1.2.

    The analysisFull size

  • UCAS Tariff points for each IB grade, HL and SL

    Two bar charts on one scale of the UCAS Tariff points for each IB grade. Higher Level: 7 is 56, 6 is 48, 5 is 40, 4 is 32, 3 is 24, 2 is 16, 1 is 12. Standard Level: 7 is 28, 6 is 24, 5 is 20, 4 is 16, 3 is 12, 2 is 8, 1 is 6.

    Source: UCAS Tariff calculator, read 7 October 2026.

    The analysisFull size

Renzo Diaz, IB Mathematics & Physics tutor
Renzo Diaz, engineer and IB Mathematics & Physics tutor.

Portrait

Portrait of Renzo Diaz for publication

Free to use in coverage of Renzo Diaz, credited “Renzo Diaz”.

Open at full size880 × 1100 px

Contact

Press contact for Renzo Diaz

For an interview, a comment or a source on the IB Diploma Programme, write by email. Interviews in English, Spanish or Italian, by video call.

Emailrenzo@ascentiq.io

For lessons, the first step is a free strategy call, requested through a short form.

Request a strategy call