div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader031fdocumentsecreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader031fdocumentsecreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader031fdocumentsecreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails3jpg...