Mich. Comp. Laws § 393.104

Sec. 4. The object of said school shall be to educate the blind and to afford them instruction in such useful arts and trades as they are best adapted to pursue, and such as will best enable them to maintain themselves. All pupils received in said school shall be educated in the branches usually taught in the common schools, in vocal and instrumental music, and in such other branches of learning as the board of control shall prescribe. They shall also receive instruction in such mechanical trades as said board shall prescribe, and shall have proper physical and moral training.