1. To compare quantities of, for instance, objects, spaces, or symbols 2. To take others’ perspectives, both cognitive and social 3. To think about strategies for game playing 4. To invent new rules...

1. To compare quantities of, for instance, objects, spaces, or symbols

2. To take others’ perspectives, both cognitive and social

3. To think about strategies for game playing

4. To invent new rules and adapt to new rules invented by others (pp. 195–197)