Pondering a **#slowmathchat** question on Twitter I realised that I always have a few sites I rely on where I know I can always find something. So I thought I’d pick a random example to illustrate.

So – constructions, for demonstrations I always use John Page’s **Math Open Reference**, his demonstrations are so clear and can be shown step by step; students can also be given the website so they can access them themselves. I found this many years ago when I wanted some demonstrations for constructions –** a Google search** returned it as the first entry!

Math Open Ref – Bisecting an Angle

So obviously we need some questions / activities. Where to look – our textbooks are fine – plenty of questions there, but what else is available?

On Nrich, try a **search by topic facility** to find all the resources for a particular topic; searching on **constructions** there are several resources returned.

Nrich – triangle construction

**CIMT** – I don’t think CIMT have ever failed me! One can actually do a Google search such as **CIMT constructions **to very quickly find resources. It is worth being familiar with the site so you know what is where; I would always check the **Year 7**, **8** and **9** material and also the **GCSE course**. In this case, the **Year 9** resources include **Unit 12 on Constructions and loci**. As well as the text we have all the supplementary teacher resources, **extra exercises** for example and **extra activities**.

I often find Nrich and CIMT more than sufficient and

**I want to spend time planning my lesson and thinking about my students’ learning and how I’m going to help them understand and make it stick. And how will I know?**

So of course quality resources are key but I don’t want to spend too much time looking for them if it stops me spending sufficient time on the above. I believe it is very worthwhile to have a few key sources so you can find something efficiently and quickly.

Having said that, since this post is on finding resources I’ll mention a few more!

The old **Exemplification examples** for Key Stage 3 have some very useful example. In this case use the **Geometry and Measures **document and do a search for constructions.

**Teachit Maths** though a subscription site offers its **entire collection of activities** as pdfs free. A **search on constructions** returns a small number of resources including a good card sort.

I’ll finish with Craig Barton’s and Simon Woodhead’s wonderful **Diagnostic questions site**. (Select **this link for all posts on Diagnostic Questions**, these include some instructions for use and other resources for rich questions.) Start typing **construction into the search box** and various choices will be returned.