000			00543nam a22001937a 4500
001			DSMTH_00005
003			OSt
005			20241205150719.0
008			220906b |||||||| |||| 00| 0 eng d
040			_cDO
082			_aTH 510.712 Ab18e 2015
100			_qAbasta, Christian S.
245			_aEffectiveness of tangrams in introducing triangles and quadrilaterals in grade 7
250			_aJune 2015
300			_ax, 225p.
650			_xMathematics teaching and research
700			_aBacayon, Lester C. _aMilan, Rosamay M.
942			_2ddc _cBK
999			_c322 _d322