Table 4 Comparison of group uses of student-generated criteria for the dissolution of ionic solids in water (‘+’ means group used indicated criterion whereas ‘-’ they did not)
From: The influences of group dialog on individual student understanding of science concepts
Group | Group-generated criteria for dissolving ionic solids | |||
|---|---|---|---|---|
| Â | Separation of salt into ionic species | Salt becomes aqueous | No chemical change occurring | Presence or absence of water from the chemical equation |
1A | + | + | – | + |
1B | + | + | – | – |
1C | – | – | – | + |
1D | + | – | + | + |
2A | + | + | + | + |
2B | + | + | – | + |
2C | – | – | – | – |
2D | + | – | + | + |
3A | + | + | – | – |
3B | – | – | – | + |