Intended for purposes of instruction, for teaching.(adjective)
A book, film, etc. intended to instruct.(noun)
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Use "instructional" in a sentence
"Stegmann does explicitly allow that components other than nucleotide sequences might contain what he calls instructional information."
"So some might be interested in instructional resources."
"Academic merit and freedom, and excellence in instructional quality should be the governing principles for higher education in Ethiopia, not party membership, party loyalty or party influence."