Preparing children for life's horizons



Chemistry, Biology and Physics are taught as distinct subjects

Small Classes...
...Big Difference

We are a co-educational school for pupils aged 3 - 13yrs.  Pupils can join us at any stage. Many join us for their Years 7 & 8.  Our pupils go on to secure scholarships at prestigious public secondary schools, or their state equivalents such as The Thomas Hardye School.  "ItsLearning" allows parents to stay in touch with their children's lessons on a daily basis.

We are a co-educational school and pupils can join us at any stage in their primary education

Stage Not Age

We take an unashamedly traditional approach to the vital importance of the basics; mental arithmetic, times tables, good grammar, spelling and punctuation.  We ensure we tailor learning to the specific needs of the pupil.  We strive to balance excellence with inclusion both inside and outside the classroom - see "The Thornlow Timesor visit "Latest News" to read more!

All Thornlow pupils learn Mandarin as part of the curriculum


Thornlow pupils study Spanish, French and EnglishAll languages are timetabled on the curriculum and are taught by specialist language teachers.  To enhance learning, our incredibly strong links with Spain provide exchange opportunities.  Our traditionally English classic school uniform, exudes quality, just like our language department!

Our hosts are SailLaser at the Weymouth and Portland National Sailing Academy


We're a small school, but we have a giant reputation for sailing. We hone our skills in the safe waters of Portland Harbour.  During winter months we have also embarked on an Outdoor Activities Programme which included rock-climbing and mountain biking.

Children in our Early Years Nursery even learn French!

Early Years

Our Early Years Nursery classes are based on The Early Years Foundation Stage (EYFS) and are packed with fun learning-based activities for 3-5 year olds. 
Join us on one of our FREE, no obligation "Discovery Mornings" to find out more.

Termly boarding also includes the opportunity to visit many prestigious venues within Dorset and beyond


Termly boarding is available for UK and Non-UK residents and we would welcome you to visit our exquisitely decorated “home from home” boarding house.  Caring and attentive house-parents ensure a strong sense of belonging and personal identity.

Latest News

  • "Two people from Soul Food came in to our Harvest Festival Assembly to talk to us about what they do to help people on the streets who cannot afford to buy their own food."

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  • Welldone Darcy and all her friends from Thornlow who successfully abseiled down 85ft of cliff on Portland to raise money for charity! Thank you Darcy and her family for organising such a fun event!

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  • On Tuesday 4th November 2014 the pupils of Thornlow Preparatory School will be holding a fundraising day in aid of JDRF – The Juvenile Diabetes Research Foundation which is a charity supported by Felicity, Alex and their family.

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  • Thornlow Preparatory School have sought advice and recommendation from the World Health Organisation, UKBA, BSA and Public Health England regarding an outbreak of Ebola occurring in West Africa and Spain.

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  • Today in Assembly our friends from Spain were awarded certificates for demonstrating a marked increase in their vocabulary. Welldone girls - your English is excellent!

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  • Mrs Randall has just counted up all the sponsorship money that all the pupils and parents from Thornlow raised at the Swimarathon and the grand total raised is £1120.90 - AMAZING! Well done and many thanks to all the swimmers, parents and pupils, who took part or supported the event!

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Forthcoming Events

Oct 25th - All Day
Oct 26th - All Day
Oct 27th - All Day
Oct 28th - All Day
Oct 29th - All Day
Oct 30th - All Day
Oct 31st - All Day
Nov 03rd 8:20 am - 8:20 am