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1834 Caledonian Mercury 24 Apr. The lecturer on Practical Chemistry might..prejudice the mind of his class..and tell them that there was no necessity of attending the Theory class.

1879 Musical Times 20 224 The principal of a well-known Margate school when urged by me to adopt a theory book..replied that he found it too advanced for beginners.

1894 Decatur (Illinois) Daily Rev. 22 Oct. Myrtle Dunscomb passed the theory examination in shorthand on Thursday.

1900 M. B. Thrasher Tuskegee vii. 69 As in most of the metal working classes, the last hour in the afternoon alternates between theory lessons and drawing.

1921 Physical Training Feb. 184 Should the examination on theory work be in the form of questions or a written outline?

1965 Ebony July 72 I spend hours on the piano studying for theory class.

1994 Swimming Times Sept. 24/1 The Theory Session will take place in the morning and the Water Session in the afternoon.

2014 South Wales Echo (Nexis) 4 Sept. (News section) 25 Having since passed his theory exams he has found himself struggling to complete the practical training needed to gain an NVQ qualification.