It’s December! So many mathsy doors to open!

See my updated **Advent Calendar collection**.

Now it’s December – you can open **Transum door 1** to reveal this gem!

I do like this **Dec 1st Transum activity**. Use the given palette to make sure that all the trees are decorated differently – brilliant for thinking about **systematic listing strategies**. Note the different levels available.

Look at all the wonderful collections on Nrich on Working Systematically.

- Working Systematically
- Finding all solutions (Teacher)
- Finding all solutions (Teacher)
- Finding all solutions
- Working Systematically – Lower Secondary

Staying with Nrich…

Nrich publishes annual Advent Calendars – one for **Primary (2022)** and one for **Secondary (2022)**. Both feature twenty-four activities, one for each day in the run-up to Christmas; for 2022 the calendars have twenty-four poster problems. Both Nrich and **Plus Magazine** have published such good collections of Advent resources, clearly, for an Advent Calendar, the year does not matter so we have lots of choices! See for example this **whole collection of advent calendars on Nrich,** note the different themes available – a **Sudoku** for each day perhaps? The **2016 Primary Calendar** featured tasks to encourage **mathematical habits of mind** something we need to encourage in students of all ages.

From Matthew Scroggs – try his **Advent Calendar for 2022**; behind each day (except Christmas Day), there is a puzzle with a three-digit answer, solve the puzzles to help Santa by destroying the drones so that he can deliver presents before Christmas is ruined for everyone; you can read all the details in **his post**.

From the brilliant **Mathigon** site, see **Puzzles 2022**, puzzles are revealed at 9am GMY every day in December and solutions are availble on the following day.* *And perhaps have a look back at their puzzles from earlier years…

Looking again at some of these Advent calendar resources, I think many are useful for end of term Christmas activities for examination classes. In this category we have for example:

J Calderwood has provided **three Advent Calendars** – Advanced Higher, HIgher and N5 Maths for Scottish Students. A great revision resource that could be adapted for different courses.

Alternatively how about a **Christmas Revision Calendar** from Access Maths? Three Christmas Calendars are available, one for KS3, and two for GCSE – Foundation and one for Higher.