E-Block: A Tangible Programming Tool with Graphical Blocks

Table 2

Coding scheme for utterances.

Utterance type	Example
Space-related talk	You should keep unused blocks out of the recognition region
Feedback-related talk	Look, the smiling face turns sad; do you notice, the LED is flashing?
Occlusion-related talk	Remember, you should add a block like this; don’t put your hand over blocks
Other talk	That’s so cool!; I need a green block