div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentsnetreader042viewer20220307055af114647f8b9a572b9049dbhtml5page1jpg target=_blank img data-url=documentltratuacirltratuacirarticle6305a83c8c917e05-of-usage-whether-it-is-a-htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: ltratuacirltratuacirarticle_6305_a83c8c917e0545e3209d176c0a50fa25pdf · levels of usage whether it is a considered a kind of problem-solving activity as Thorndike 1917 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsnetreader042viewer20220307055af114647f8b9a572b9049dbhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader042fdocumentsnetreader042viewer20220307055af114647f8b9a572b9049dbhtml5page2jpg target=_blank img data-url=documentltratuacirltratuacirarticle6305a83c8c917e05-of-usage-whether-it-is-a-htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: ltratuacirltratuacirarticle_6305_a83c8c917e0545e3209d176c0a50fa25pdf · levels of usage whether it is a considered a kind of problem-solving activity as Thorndike 1917 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsnetreader042viewer20220307055af114647f8b9a572b9049dbhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader042fdocumentsnetreader042viewer20220307055af114647f8b9a572b9049dbhtml5page3jpg target=_blank img data-url=documentltratuacirltratuacirarticle6305a83c8c917e05-of-usage-whether-it-is-a-htmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: ltratuacirltratuacirarticle_6305_a83c8c917e0545e3209d176c0a50fa25pdf · levels of...