“…In particular, a variety of toys (e.g., Lego blocks, musical instruments) and 'tangibles' (e.g., necklaces, wands) have been embedded with RF tags and other sensor technology to encourage exploratory play, imaginative storytelling and collaboration (e.g., Montemayor et al, 2002;Strommen, 1998;Cassell and Ryokai, 2001;Resnick et al, 1998;Stanton et al, 2001). Recently, some projects have begun to create sensor-based environments to support playing and learning.…”