Ko te pāpātanga o te whiti te tere o te rerekē haere o tētahi āhuatanga i roto i te takanga o te wā. Ko te kauwhata rārangi te mea e tino whakamahia ana hei whakaatu i te pāpātanga o te whiti. Hei tauira, ko te tāroaroa o tētahi tipu i te takanga o te wā (TRP 2010:198). / The rate of change is the speed at which something changes over time. Line graphs are used to show rates of change. For example, the height of a plant over time (TRP 2010:198).

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