It’s December…it’s that time of year again…!

And so to the annual update on Mathematical Advent Calendars. On Teachit Maths their **Interactive advent calendar **is a free sample resource available to everybody. (Remember that the **free subscription** on this excellent site includes hundreds of high-quality pdf resources.) Teachit Maths describe the resource as an advent calendar in the form of a presentation focusing mainly on mathematics. Suitable for KS3/4. (KS3/4 is UK age 11-16). For each day you will reveal a festive fact, joke, teaching idea, activity or game.

From **Andy Lutwyche** we have his **Christmas Advent Calendar** which covers lots of different topics in number, algebra, shape & space and data and gets progressively more difficult as you go on.

Also from Andy, try his **Advent Calendar – Solving Linear Equations**. Students answer the questions (the solutions are 1 to 24) and each answer links to a word; when the words are put in numerical order an entire joke is revealed! And another…for older students, **Differentiation Advent Calendar** where students are asked to find the gradient of a curve at a given point. Cheesy joke included!

Also from Andy, this “Advent” Calendar is a set of GCSE Higher non-calculator questions. Full answers are provided on a series of slides.

Further revision calendars are included later in this post.

Staying with a calculus theme, I used **Dr Tom Bennison’s Integration a day Advent Calendar** last year and will do so again this year – perfect for year 13.

Also on TES you can find an excellent **calendar from Mark Dawes**.

This is a lovely resource with over 30 problem-solving tasks for use in maths lessons in December. Suitable for starter activities, they span a range of abilities in KS3 and KS4. As well as the calendar the resource includes worksheets for some of the problems and an Excel file showing the difficulty of the tasks.

I do like Mark’s suggestions for use in class, he has given instructions for manipulating the resource so teachers can choose the problem they want for any day!

For a collection of starters aimed at KS3 students try this **Christmas Maths Advent Starter Calendar** from MrCsMaths. This provides a nice mix of activities.

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

From a favourite site, where you can find so many excellent resources, Transum has an **Advent Calendar**. Behind each door, you will find a Christmaths activity, laugh at a cracker joke and solve a mathematical word puzzle.

(See **this post** for more on Transum.)

Try this **Mathsvent Calendar** from **Phil Bruce****. **For December 1st put the baubles in size order along the tinsel starting with the smallest at the bottom.

Very usefully, you can find all 24 **puzzles listed by topic**. These puzzles are great, extensions are given for many of the problems too.

Nrich publishes annual Advent Calendars – one for **Primary** and one for **Secondary**. Both feature twenty-four activities, one for each day in the run-up to Christmas. Both calendars this year feature a wonderful variety of tasks from twenty-four different past features. Both Nrich and **Plus Magazine** have published wonderful 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? Maybe you want to **play a game? **The **2016 Primary Calendar** featured tasks to encourage **mathematical habits of mind** something we need to encourage in students of all ages.

From Nrich in 2017 we have a calendar for **Primary** and one for **Secondary** each containing twenty-four problem-solving activities, one for each day in the run-up to Christmas. The secondary tasks come from the excellent **Short Problems** collection.

**The Indisputable Santa Mathematical Advent Calendar** comes from Dr Hannah Fry and Dr Thomas Oléron Evans who throughout December 2016, to accompany the release of their book on **the Mathematics of Christmas**, tweeted out Christmathsy bits and pieces, one a day, advent calendar style.

From the brilliant **Mathigon** site, see **Puzzles 2020**, and why not have a look back to their puzzles from earlier years…

From Matthew Scroggs – try his **Advent Puzzles**; behind each day (except Christmas Day), there is a puzzle with a **three-digit answer**. Matthew is awarding prizes to ten randomly selected people who solve all the puzzles, see **mscroggs.co.uk** for details.

Alternatively how about a **Christmas Revision Calendar** from Access Maths? Scroll right down this **collection of very helpful GCSE Revision Resources** for three Christmas Calendars, one for KS3, one for Foundation and one for Higher, also available are Christmas revision activities.

Alternatively, try this higher GCSE revision quiz, very attractively presented as an Advent calendar, answers are included.

Alex Pett created his advent calendar complete with history and problems for each day. Alex has provided a **pdf version **or use as a** Google document**. For an Activeinspire resource, try **this version**.