It includes information on why and when to use the strategy and provides systematic practice for students using different examples. (verywellfamily.com)
Frequent systematic practice is important for student learning and achievement in mathematics. (teachermagazine.com.au)
... In Nicaragua there is no systematic practice of forced disappearances, extrajudicial killings or torture — as has been the case with the «friendly» armed forces of El Salvador Nor has the Government practiced elimination of cultural or ethnic groups, as the Administration frequently claims; indeed in this respect, as in most others, Nicaragua's record is by no means so bad as that of Guatemala, whose government the Administration consistently defends. (religion-online.org)