Galen Y. GCSE Chemistry tutor, GCSE Maths tutor, GCSE Biology tutor, ...

Galen Y.

Currently unavailable: for regular students

Degree: materials science and engineering (Masters) - Imperial College London University

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About me

About Me: 

Hi I'm Galen. Currently I’m a student at Imperial College London studying materials science and engineering. I’ve been lucky enough to work with lots of people from different backgrounds so I’m sociable and patient. Naturally I’ve always been more interested and thus performed better at maths and science’s so hopefully we can get you to develop the same passion and become better. My previous teaching experience involves teaching pre-GCSE maths as well as assisting my sister with both her GCSE and A-levels maths/ further maths.

The Sessions: 

The sessions will revolve around topics you’re studying and we’ll try and tailor the teaching around your learning style, whether it’s using pictures, notes or practice tests etc. If there are any additional things you might require such as extra notes or problem sheets feel free to contact me prior to our next session and I’ll be able to provide them, and I’m always available to help with anything required outside of sessions via email.

Hopefully we will have fun and interesting sessions with the end goal of achieving the best grade possible.

UCAS and gap year advice 

I went through the UCAS process twice and helped my younger sister with hers so if you would like, I’d be happy to advise with yours too. I also happened to take a gap year where I was working as an IT apprentice at Lloyds banking group so if you’re not quite ready to go to uni or want to take a gap year anyways, hopefully I can provide some useful advice about the options available to you. 

What next? 

So to contact me you can either send a Webmail or book a meet the tutor session. Please also state the subject and exam board as topics may differ. If you would like me to help determine what you want to learn next then we can have a small practice test to find the topics you’re struggling most with.

Subjects offered

SubjectLevelMy prices
Maths A Level £20 /hr
Biology GCSE £18 /hr
Chemistry GCSE £18 /hr
Electronics GCSE £18 /hr
Maths GCSE £18 /hr

Qualifications

QualificationLevelGrade
MathsA-LevelA
ChemistryA-LevelA
PhysicsA-LevelA
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

No

Currently unavailable: for regular students

Questions Galen has answered

Rationalising the denominator (Surds)

When asked to rationalise simple Surd (square roots that cannot be reduced to a whole number) fractions in the form a/√b we are aiming to remove the surd in the denominator (bottom). ---------------------------------------- e.g 1. Rationalise 3/√2  Answer: We multiply the entire fraction by ...

When asked to rationalise simple Surd (square roots that cannot be reduced to a whole number) fractions in the form a/√b we are aiming to remove the surd in the denominator (bottom).

----------------------------------------

e.g 1. Rationalise 3/√2 

Answer: We multiply the entire fraction by the denominator √2/√2 (this is equivalent to 1).

Let us first consider what happens to the denominator:

√2 x √2 = 2 (any simple surd multiplied by itself equals the number inside)

The numerator (top) becomes 3 x √2 or 3√2 

So the fraction rationalises to 3√2 / 2,  the surd has now been removed from the denominator.

Typically you will be asked to simplify the fraction which is just asking you to rationalise it. The rationalised fraction can be used more easily in further calculations.

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10 months ago

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