div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Association of Science-Technology CentersFour-Day Summer Academy Each summer participating teachers attend a four-day summer academy Perot Museum of Nature and Science e Kosmos src=https:reader036vdocumentinreader036viewer20220816006043244803313c592e45023ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv