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The material consists of a presentation tray containing six colored boxes of bead material:
- one box containing 5 sets of colored bead stairs
- one box containing 5 sets of negative bead stairs
- one box containing 1 black and white bead stair
- one box containing 1 pink and white bead stair
- one box containing 23 golden ten bars
- one box containing 23 gray ten bars.
This material is used to introduce the concept of negative numbers.
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