1+4+9+16+25+.......+324=?1 + 4 + 9 + 16 + 25 + ....... + 324=?1+4+9+16+25+.......+324=?
Three phases of concept attainment model is given below:
1) Analysis of thinking strategies
2) Presentation of data
3) Testing attainment of concept
choose the correct order of phases.