Lewis C. GCSE Maths tutor, A Level Maths tutor, IB Maths tutor, GCSE ...

Lewis C.

Currently unavailable: for regular students

Degree: Natural Sciences (Masters) - Durham University

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About me

I am a Natural Scientist specialising in maths and physics at Durham university. I believe that in order to confidently answer a question, you must first understand the surrounding topic. In my tutorials I aim to help students understand the material itself by using analogies and examples that simplify or break up more complicated ideas. In order to have a productive tutorial it is important to tailor both the topic and teaching style to the individual student and I aim to adapt my method to the situation at hand.

Over the course of my GCSE and IB (A-level equivalent) qualifications I found myself helping fellow students both inside and outside of lessons and I believe I have developed skills in recognising where someone is struggling to understand and providing a helping hand to facilitate their learning. Looking forward to meeting you all!

Subjects offered

SubjectLevelMy prices
Further Mathematics A Level £20 /hr
Maths A Level £20 /hr
Further Mathematics GCSE £18 /hr
Maths GCSE £18 /hr
Physics GCSE £18 /hr
Further Mathematics IB £20 /hr
Maths IB £20 /hr

Qualifications

QualificationLevelGrade
Maths HLBaccalaureate7
Physics HLBaccalaureate7
Chemistry HLBaccalaureate7
English SLBaccalaureate6
Psychology SLBaccalaureate6
French SLBaccalaureate5
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

05/12/2016

Currently unavailable: for regular students

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Ratings and reviews

5from 2 customer reviews

Amelia (Student) December 5 2016

Amelia (Student) November 28 2016

Questions Lewis has answered

Describe the energy changes as electricity is produced in a fossil fuel station.

To begin with, chemical energy in the fuel is released through combustion and becomes thermal energy. This thermal energy is used to heat water which evaporates and become steam. The rising steam turns turbines and the system now contains the kinetic energy of the turning turbines. The turbine...

To begin with, chemical energy in the fuel is released through combustion and becomes thermal energy. This thermal energy is used to heat water which evaporates and become steam. The rising steam turns turbines and the system now contains the kinetic energy of the turning turbines. The turbines are finally linked to a generator which converts the kinetic energy into electricity.

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1 month ago

47 views

Describe the model now used for the structure of an atom. Refer to the constituent particles including their relative masses and charges.

In an atom, the mass is concentrated in the nucleus which is at the centre of the atom. The nucleus is composed of neutrons and protons, each with a relative mass of 1. By comparison, the third component of an atom is the electrons which orbit the nucleus and have a relatively neglible mass. ...

In an atom, the mass is concentrated in the nucleus which is at the centre of the atom. The nucleus is composed of neutrons and protons, each with a relative mass of 1. By comparison, the third component of an atom is the electrons which orbit the nucleus and have a relatively neglible mass.

The charge of the atom is defined by the total charge of its components. Electrons have a charge of -1, protons of +1 and neutrons have no charge.

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1 month ago

54 views

Find the solutions to 'sec(17-2x)=-2' for -180<x<180 (in degrees).

In order to find the angle that satisfies a trigonometric function, the easiest way is to use the inverse function on a calculator. E.g. cos(x)=2/3 then one solution is x=cos^-1(2/3). In order to do this, we can set the subject of the function to u. In other words, we make the inside of the b...

In order to find the angle that satisfies a trigonometric function, the easiest way is to use the inverse function on a calculator.

E.g. cos(x)=2/3 then one solution is x=cos^-1(2/3).

In order to do this, we can set the subject of the function to u. In other words, we make the inside of the brackets equal to u and then find the new range.

u=17-2x. When x=-180, u=17-2(-180)=377

When x=180, u=17-2(180)=-343.

Therefore, -343 to 377 is our new range for u.

Since sec(u)=-2 and sec(u)=1/cos(u), we can invert both sides to get cos(u)=-1/2.

Using the cos^-1(-1/2) on a calculator we get one solution where u=120. Due to the symmetry around 180 of cos, we can find another solution using the formula 180+(180-120)=240.

To get the two remaining solutions within the range, we can use cos(a)=cos(-a) so the other solutions are -120 and -240.

We have the four solutions: u=-240, -120, 120, 240. And must now convert them back to x.

Since u=17-2x, x=(17-u)/2.

Therefore the solutions are x=128.5, 68.5, -51.5, -111.5 (all in degrees).

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1 month ago

46 views
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