You won't need these things straight away but, when you can, please start to collect your own:
A sand tray - I recommend the Really Useful blue transparent box with lid at 24.5 litres if you don't have anything to hand that you can use.
Sand - I love the Tesco sand which is currently available [usually during the summer only] as I write. However, if that proves impossible to buy, you can try Argos, B & M, Smyth's Toys to name a few. You can even use dried lentils or jasmine rice (alternatives to sand).
A set of between 20 - 30 symbols. If you don't have these to hand, once you enrol, you will have access to a list of inexpensive symbols and where to purchase them. You could just wander around your home (look in the loft!) and see what you might be able to use as a symbol - a sort of symbol treasure hunt! Charity shops are also great places to find symbols.
There will be other resources on the list but these are all optional and up to you if you wish to purchase these for practice. You will adjust your resources according to what you feel your participants may find useful.
Once you enrol I will encourage you to 'buddy up' with someone else either on the training or someone you know as a colleague and I will encourage you to use the Zoom platform to have practice sessions with them