Please review each article prior to use: grade-level applicability and curricular alignment might not be obvious from the headline alone.
My dadu, my father’s father, was bipolar: he had long periods of deep depression, when he would barely move or talk, followed by short highs when he had the irrepressible energy of a five-year-old.
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The Notes app on iOS 26 gets an update that lets you create 3D graphs from functions you enter without needing another app or doing too much work.