Which of the following aligns with the overall vision of achieving 'Mathematics for All' as per NCF-2005?

1. Children see mathematics as something to talk about, to communicate through, to work together on relating it to other essential subjects.

2. Children use abstractions to perceive relationships, to see structures, to reason out things, to argue the truth or falsity of statements.

3. Teachers engage every child in the class with the conviction that everyone can learn mathematics and enrich them with examples of achievements.