Katie H. A Level Geography tutor, GCSE Maths tutor, GCSE Biology tuto...

Katie H.

Currently unavailable: until 04/11/2015

Degree: Geography (Bachelors) - Oxford, St Catherine's College University

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About me

Hello! I'm Katie and I'm a recent geography graduate from the University of Oxford. I'm looking to help you reach your full academic potential, whether you're aiming to bump up your grades in your next exam, prepare for interviews, or just need a little helping hand with something specific. 

As a natural enthusiast, I look to help and inspire you to learn about the many facets geography has to offer, covering both human and physical subdisciplines. I tailor tutorials to meet your individual needs, be that core understanding, extension beyond the syllabus, or a specific piece of coursework. I like to make tutorials interactive and discussion based, as I have experienced this style of learning throughout my Oxford degree and found it highly effective. This gives you the opportunity to ask lots of questions and make sure you fully get to grips with a topic by the end of the session.

Although geography is my specialism, I also have a sound understanding of Biology and Maths, having studied these to A level. 

In addition to tutorials covering subject content, I am happy to assist with university applications, personal statements and interview preparation, having successfully mentored a number of students into Oxford in the past. 

Do not hesitate to drop me an email with any questions or sign up to a trial session. I very much look forward to meeting you!

Subjects offered

SubjectLevelMy prices
Geography A Level £20 /hr
Biology GCSE £18 /hr
Maths GCSE £18 /hr
-Personal Statements- Mentoring £20 /hr

Qualifications

QualificationLevelGrade
Geography A-LevelA
MathsA-LevelA
Biology A-LevelA
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

01/05/2015

Currently unavailable: until

04/11/2015

Questions Katie has answered

What are 'Milankovitch cycles'?

Over the past 2 million years, climate has oscillated between periods of warm climate (glacials) and periods of cooler climate (interglacials). Changes in the shape of earth's orbit help explain these changes. These are known as 'Milankovitch cycles'.  There are three such ‘Milankovitch cycle...

Over the past 2 million years, climate has oscillated between periods of warm climate (glacials) and periods of cooler climate (interglacials). Changes in the shape of earth's orbit help explain these changes. These are known as 'Milankovitch cycles'. 

There are three such ‘Milankovitch cycles’:

1. Axial precession

The angle of tilt on earth's axis changes over a 41,000 year cycle. This causes more or less sunlight to reach the ice caps at the poles.

2. Eccentricity 

Earth's orbit around the sun varies between being a perfect sphere and an ellipse. When this orbit is an ellipse, less sunlight reaches the earth at certain points in its orbit, cooling the climate. 

3. Precession of the equinoxes

Earth does not stay entirely still when it orbits the sun, but rather 'wobbles' slowly on its axis, much like a child’s spinning top. This causes the amount of sunlight hitting the earth to vary.

Combined, these three ‘Milankovitch cycles’ cause the amount of sunlight hitting the earth to change in complex ways over long timescales. They can be seen as the ‘trigger’ for glacials and interglacials operating over the Quaternary period. 

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1 year ago

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Why do energy and biomass decrease at successive stages of the foodchain?

Energy is transferred throughout the food chain as animals at lower trophic levels are consumed by those at higher trophic levels. In every living organism, energy is taken in as food. But when one organism eats another, only around 10% of this energy is transferred to the higher organism. So…...

Energy is transferred throughout the food chain as animals at lower trophic levels are consumed by those at higher trophic levels. In every living organism, energy is taken in as food. But when one organism eats another, only around 10% of this energy is transferred to the higher organism. So…where does this surplus energy go?

There are three main ways in which energy is output in every organism. These are:

RESPIRATION to generate energy for movement and organ functioning

EXCRETION as faeces, urine or gas

TISSUE (biomass) generation

When organisms are consumed in the foodchain, only energy stored as TISSUE is transferred. Therefore, at each stage of the food chain, less energy and biomass is transferred between organisms than at the previous trophic level.   

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1 year ago

1631 views
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