https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%22GRUPOS%20HETEROGENEOS%22%29&sort_by=title_az&format=rss 7 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=61681 By Hacker, R. G..
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223-231

]]> Place hold on A study of the effects of an organization change from streamed to mixed-ability classes upon science classroom instruction

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535-552

]]> Place hold on Ability grouping in the middle grades : achievement effects and alternatives

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313-326

]]> Place hold on Assessing the status of information on classroom organizational frameworks for gifted students

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=62901 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=76893 By Stowe, Lawrence G..
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380-381

]]> Place hold on Should physics classes be single sex?

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6-10

]]> Place hold on The case for untracking

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44-47

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=79291 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=79367 By Sapon-Shevin, Mara.
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62-63

]]> Place hold on Why (even) gifted children need cooperative learning

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