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To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

Without these technologies, things like personalised recommendations, your account preferences, or localisation may not work correctly. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions. This brightly coloured enamel pin attaches easily to your jacket, shirt or even your bag, with a black rubber clip to hold it securely in place. A wide and colourful collection of neckties made in the UK by Van Buck, including plain ties, silk ties, liberty print ties, limited edition ties, paisley ties, stripe ties and more.

All of our ties are made using the very best quality materials making them the perfect accompaniment for any occasion from styling the groom on his wedding day to finding that perfect tie for an interview or business meeting, rest assured we will have what you are look for in quality British mens neckwear. On a base of royal blue silk this mathematical inspired design has been finely hand painted with an array of formulas, symbols and classic equations. The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings. The product you will receive may differ slightly from the product photograph only due to each tie being uniquely cut from the mother fabric.Liberty Print Tie, Wedding Tie, Neck Tie, Red Floral Tie, Grooms Tie, Best Man accessory, Gift for Dad. He likes that this is a brown tie as he doesn't have many in his collection and it helps the pattern stand out. Etsy’s 100% renewable electricity commitment includes the electricity used by the data centres that host Etsy. These 4 or 5-star reviews represent the opinions of the individuals who posted them and do not reflect the views of Etsy. The product you will receive may differ slightly from the product photograph only due to each bow being uniquely cut from the mother fabric.