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Do Your Students Really Know Their Math Facts. Using Daily Time Trials to Build Fluency. Beherrschen ihre Schueler wirklich die Grundrechenarten. Taegliche Uebungen zum Aufbau der Sicherheit. (English)
Interv. Sch. Clin. (Nov 1992) v. 28(2) p. 98-104. [ISSN 0001-396X]
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