??? ????? ?? ???? ?? ??? ?? ????? ???? ?? ?? ??? ???? ??? ??? ???? ??? ???. ??? ????? ?? ?? ??? ?? ? ?? ???? ???? ? ??? ???? ????? ??? ???.“At a group degree” refers to general, full class instruction where by teaching/modelling of concepts for all learners occur simultaneously; “at a person stage” refers to qualified instruction to an indi