Happy New Year! Welcome to my 119th gems post. This is where I share some of the latest news, ideas and resources for maths teachers. 1. New Tasks from Don StewardDon Steward has shared loads of new tasks in the last few months. Do check out his blog for the whole selection – here I have featured just a few examples. In the task ‘congruent parts and similar parts’ the idea is to dissect the shapes into two congruent pieces with…