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

  • It is always lovely to hear the sounds of laughter in school and it made me so happy to also see smiles and happy faces of Reception children who are learning to Country Dance today!

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  • Armistice Day is on 11 November and is also known as Remembrance Day. Remembrance Day marks the day World War One ended, at 1100hrs on the 11th day of the 11th month, in 1918.

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  • Thornlow Preparatory School are extremely grateful for the kind donation of new fluorescent "bibs" donated by "Specsavers" as part of their Road Safety Awareness campaign.

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  • "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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  • Today the pupils of Thornlow Preparatory School held 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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Forthcoming Events

Nov 27th 1:00 pm - 1:00 pm
Nov 28th 5:00 pm - 5:00 pm
Our next Family Bowling Evening (with prizes!) will be held at Lakeside Bowling in Weymouth on Friday 28th November at 5pm. All Welcome!
Dec 04th 9:00 am - 12:00 pm
Dec 12th 12:30 pm - 12:30 pm