How many schools were approved to teach vocational agriculture in the 1917-18 school year?

In the 1917-18 school year, no schools were officially approved to teach vocational agriculture immediately. This period marked the introduction of agricultural education in public schools, mainly spurred by the Smith-Hughes Act of 1917, which provided federal funding for vocational education, including agriculture. However, the implementation process took time, and it wasn't until subsequent years that schools began receiving formal approval to offer such programs extensively. Therefore, the correct answer reflects the historical context in which the development of vocational agriculture education was still in its nascent stages at that time.