Skip to main content

Main navigation

Subscribe now & save! £0.00 per month, for 12 months £0.00p/m

for 12 months

Find out more →

Categories
- Assessment
- Behaviour
- Curriculum
- Funding
- International
- MATs
- Ofsted
- Pay & Conditions
- Pedagogy
- Policy
- Research
- Safeguarding
- SEND
- Teacher training
- Archive
News
Analysis
Teaching & Learning
- Tes Explains
Scotland
Leadership
- MAT Tracker
- Middle Leadership Essentials
Newsletters
Jobs and more

- User profile
- Logout

Categories
- Assessment
- Behaviour
- Curriculum
- Funding
- International
- MATs
- Ofsted
- Pay & Conditions
- Pedagogy
- Policy
- Research
- Safeguarding
- SEND
- Teacher training
- Archive
News
Analysis
Teaching & Learning
- Tes Explains
Scotland
Leadership
- MAT Tracker
- Middle Leadership Essentials
Newsletters
Jobs and more

Authors

Jave Hassan

All articles by Jave Hassan

Mystery of those advertising numbers explained

19 April 2002

About
- About Tes
- Contact us
- Work for Tes
- Partners
- FAQ
Legal stuff
More from Tes

Copyright © 2026 Tes Global Ltd is registered in England (Company No 02017289) with its registered office at Building 3, St Paul’s Place, Norfolk Street, Sheffield, S1 2JE.