http://pt.scribd.com/doc/66263999/MATEMATICA-REVISAO-angulos-8%C2%BA-ano
http://vilsonmorais.wordpress.com/2013/02/22/exercicios-sobre-angulos-7o-ano/
http://mat7ano.no.sapo.pt/#%C3%82ngulos
http://sudoku.net.br/puzzle/facil/1/
http://matematicojorge.no.comunidades.net/index.php?pagina=3348845001
http://www.hoodamath.com/mobile/games/oblong.html
http://www.hoodamath.com/mobile/games/geometry.html
http://ensinaeaprendecomastics.blogspot.com.br/2012/08/atividades-envolvendo-plano-cartesiano.html
http://melissamatematica.blogspot.com.br/2011/03/plano-cartesiano.html