Welcome to OTTER!

Please read this document thoroughly before you begin to write maths questions from question templates.

It provides essential information regarding:

• the main elements of OTTER question templates 
• our system of difficulty levels 
• permissible changes to question templates 
• our standardised terminology and formatting 
• step-by-step examples of generating new questions 
• when and how to write introductory explanations to questions 
• when and how to write supplementary explanations to answers 

We welcome and encourage your active participation and creative efforts. Please do not hesitate to contact us with your questions, suggestions and any proposals you have for new question templates.