It's hard to know where to start with resources. Over the years, you tend to collect boxes and boxes of resources you've either made or purchased. If that's the case, you're already set. If you're starting out and you want some inspiration, here are a few items I've found useful to have.
Dice
Playing cards
Clocks
Whiteboards
Whiteboard pens
Number cards - 1-9
Stickers
1, 2, 5 minute sand timers
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