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Tel: 01992 629124 | Email: admin@st-maryshigh.herts.sch.uk | Facility Hire
St. Mary's Church Of England High School
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The School Day

The School opens for students from 7:45am. Students should be on the school site by 8:15am each day and are expected to be in their form rooms ready for registration at 8:25am.

8:25am  – 8:50am         Student Registration / Tutorial / Act of Worship / Collective Worship
8:50am  – 9:50am         Period 1
9:50am  – 11:20am       Period 2 / split with staggered Break
11:20am – 12:20pm      Period 3
12:20pm – 1:50pm        Period 4 / split with staggered Lunch
1:55pm – 2:55pm          Period 5
2:55pm – 3:55pm          Period 6*

* This additional study period that runs from 2:55pm until 3:55pm is for Year 10, 11 and Sixth Form students. Year 10 and 11 students will have intervention and enrichment, Sixth Form students will have timetabled lessons. There is an expectation that Year 10, 11 and Sixth Form students will remain behind for this period when it is scheduled.

Before school, breakfast is available in the Dining Hall from 7:45am to 8:15am.  Supervised access to the Learning Resource Centre is available to students from 8:00am until 8:20am and again after school, from 2:55pm until 4:00pm. Other after school clubs run until 4:30pm.

Students may be asked to remain behind after school for up to 15 minutes if they need to speak to staff. If a student needs to remain behind for periods longer than 15 minutes, the School will inform Parents/Carers.

School Life

  • The School Day
  • School Uniform
  • Attendance
  • Family Support
  • Careers, Education & Guidance
  • Student Voice
  • Student Wellbeing
  • SMSC Provision
  • Inclusion
  • Enrichment Activities
  • Duke of Edinburgh
  • Examinations

Latest News

  • Wear It Green Day 2026 – St Mary’s Stands Together for Mental HealthMay 19, 2026 - 8:53 am
  • Year 13 Secures Promotion to the Women’s Super League!May 8, 2026 - 1:44 pm
  • Mental Health and Healthy Relationships – Sammy AngeloMay 5, 2026 - 8:06 am

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Christian Ethos

  • Christian Union
  • Christian Values
  • School Prayer
  • St Mary’s Church
  • SIAMS Report
  • Collective Worship
  • Clergy Links

Get In Touch

St Mary’s Church of England High School
Lieutenant Ellis Way
Cheshunt
Hertfordshire EN7 5FB

General Enquiries: 01992 629124
Student Absence: 01992 642918

admin@st-maryshigh.herts.sch.uk

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