Alex Brown Private Tuition

23/11/2025

Thank you, Robert, for your review on TutorHunt!

03/08/2025

Congratulations to my student, Emma, who I have been teaching since March, 2021, who received a first in her dissertation on the anti-cancer potential of polyphenols in leukeamia cell lines. In our lessons, we discussed the dissertation and how she could best approach it. She did very well to achieve a first class mark!

18/05/2025

Thank you, Millie, for your review on TutorHunt!

11/01/2025

Ever wanted to make your verbal communication clearer and easier to understand? Learning the difference between a voiceless dental fricative and a voiceless labiodental fricative is a good place to start. Visit my new blog entry, https://alexbrownprivatetuition.wordpress.com/2025/01/11/minimal-pairs-%ce%b8-and-f/, to find out more.

02/11/2024

How To Draw A Dot And Cross Diagram For The Nitronium Ion, NO2+

01/11/2024

How To Find The Chemical Equation For The Complete Combustion Of TNT

29/10/2024

Please watch our new video, 'The Different Types Of Formulae In Chemistry And Common Mistakes Made', and leave some feedback in the comments below!

09/07/2024

Two different methods for carrying out the same calculation, 800 ÷ 192. Method 1 uses the standard written method for division with a multi-digit divisor. Method 2 writes the division as a fraction before simplifying the fraction to a mixed number. Method 2 then converts the fractional part of the mixed number to a decimal via the standard written method for division with a single-digit divisor. Which method do you prefer? Can Method 2 always be used as an alternative to Method 1? If not, when can Method 2 not be used?

06/06/2024

A direct proof of the cosine triple angle formula using the double angle formulae for sine and cosine

01/04/2024

I've recently been reading Oscar Levin's excellent book, 'Discrete Mathematics - An Open Introduction'. In the book, Oscar provides an example proving sqrt(2) is irrational and then asks the student to prove sqrt(3) and log(7) are irrational. In my latest blog entry, I have gone into some detail proving each of these statements. As always, please keep any feedback interesting and constructive. Thank you!

Introduction I’ve recently been working through the book, ‘Discrete Mathematics: An Open Introduction’, by Oscar Levin [1]. The book is excellent and those looking to introduce th…

25/10/2023

How to factorise simple algebraic expressions with a (perhaps) unique approach. Useful for those studying GCSE Maths and beyond.

23/10/2023

Thank you, Michelle W., for the outstanding review on my Outschool page! For a full list of my Outschool classes, please see my Outschool profile: https://outschool.com/teachers/Alexander-202008