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An unexpected error has occurred at <http://eric.ed.gov:80/default.aspx?q=%22%22&ff1=subInternet&ff2=eduElementary+Secondary+Education&ff3=eduElementary+Education&ff4=pubInformation+Analyses&ff5=subGrade+4&ff6=autDutra%2C+Rodrigo+Silveira&ff7=locBrazil&ff8=subComputer+Uses+in+Education&ff9=autCovic%2C+Andre>.

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