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The good news : the bull economy has allowed many to expand and diversify . Examples of sheltered English techniques are the use of visual aids , such as props , pictures , gestures , and facial expressions , to help convey meaning ; encouraging children to expand and elaborate their responses to help develop oral expression abilities ; and structuring oral input based on the level of understanding that children have . One of the priorities of U.S. foreign policy in Latin America and the Caribbean ( LAC ) is the promotion of prosperity to improve the lives of the people , foster regional stability and expand and link markets for the mutual benefit of the region and the United States . In the 1960s , when congressional committees called on the Atomic Energy Commission ( AEC ) to expand and diversify national laboratory programs to create more " balanced laboratories , " the call struck a responsive chord in Oak Ridge . In order to effectively promote a diverse and strong health professions workforce for the 21st Century , Federal agencies should expand and add programs that effectively overcome racial / ethnic barriers . Japanese and Korean customers looking for ways to expand and enrich their language skills will find superior solutions in Casio 's new products , which are augmented with Fonix speech technology . It has the capacity to expand and add new functionality , truly launching the Gallery into the digital age . " This research alliance underscores Chevron ’ s commitment to expand and diversify the world ’ s energy sources and represents an ambitious effort to achieve breakthrough technology in the development of cellulosic biofuels , " said Don Paul , vice president and chief technology officer , Chevron Corporation . As Stephen Ehrmann and Andrew Feenberg explain , some applications , like the electronic discussions that had so stimulated my own students , clearly expand and enrich the learning experience . The mission of American Alliance for Theatre and Education is to promote standards of excellence in theatre and theatre education by disseminating quality practices in theatre and theatre education , connecting artists , educators , researchers and scholars with each other , and by providing opportunities for to learn , exchange , expand and diversify their work , the audience and their perspectives . Dean Kirby has continued impressively to expand and diversify the faculty , and those numbers now stand at 483 and 90 , respectively .