3Rs 3Ts 3i

I know you’ve heard of the 3Rs, reading, writing, and arithmetic. Now I bring you several other strings of three. What do you think of the following:

3Rs: Reading, Riting, Rithmetic (reading, writing, arithmetic)
Traditional

3Is: Inquiry, Involvement, Independent Study
Accessed October 22, 2009 from http://speedchange.blogspot.com/2009/05/great-schools-1-changing-everything.html

3Rs: Relationships, Relevance, Rigor coined by Willard Daggett (http://www.leadered.com/aboutdaggett.html)
Accessed October 22, 2009 from http://preilly.wordpress.com/2008/06/05/the-three-rs/

3Ts: technology, talents, tolerance
Florida, Richard. (2002). The Rise of the Creative Class.

3Rs: Relating, Representing, Reasoning
from Robert Carkhuff's 3 Rs
Accessed October 22, 2009 from http://en.wikipedia.org/wiki/The_three_Rs

3Ts: tools, technique, task
Accessed October 22, 2009 from http://deangroom.wordpress.com/2009/01/24/the-3rs-are-now-the-3ts/

3Rs: Responsibility, Relationships, Respect
Accessed October 22, 2009 from http://www.theother3rs.org/

i3: Investing in Innovation Fund is part of the US Dept of Education’s historic $5 billion investment in school reform through ARRA funds. Accessed November 3, 2009 from http://www.ed.gov/news/pressreleases/2009/10/10062009a.html

How do these terms fit in with 21st Century teaching and learning?