000 00551nam a2200121 4500
008 250719b |||||||| |||| 00| 0 eng d
100 _aJihyun lee,phd
245 _aConcept-focused and procedure-focused instruction on the algebra performance of grade 9 students with ang without mathematics diffculty
300 _aPP192-209
654 _amathematics difficulties
_amathematics instruction
_aconceptual knowledge
_aprocedural knowledge
_alongitudinal
773 0 _0125278
_9112997
_dNew Delhi
_tJournal of Learning Disabilities
_x0022-2194
942 _cJA
999 _c132141
_d132141