Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Instructional \In*struc"tion*al\, a. Pertaining to, or promoting, instruction; educational.
Douglas Harper's Etymology Dictionary
1801, from instruction + -al (1).
Wiktionary
a. Intended for purposes of instruction, for teaching. n. A book, film, etc. intended to instruct.
WordNet
adj. of or relating to or used in instruction; "instructional aids"
Wikipedia
Usage examples of "instructional".
To all appearances it was one of those instructional books of card tricks, sleight of hand, illusions involving silk scarves, and so on.
The explosives experts and bomb technicians with whom I spoke were justifiably concerned that this book neither be instructional, nor reveal the exact capabilities by which bomb techs ply their trade.
In addition to food and clothing, sermons and instructional talks were offered.
The Viewing Rooms at that point had broadcast televisions and magnetic VCR-devices, instructional mag-vids from Galloway and Braden, etc.
An hour crawled by before Ted reappeared bearing the cassettes, and even then I couldn't leave without an instructional lecture.
The simple, narrow streets and alleys, in tandem with the quaintly archaic appearance of the instructional enclave, belied the subtle complexities and sheer weight of history taught inside.
She had renewed her determination to become a Singer, which had been dampened somewhat by Tukolom and an instructional mode that subtly ignored the main objective of the recruits -- becoming a Crystal Singer.
Dim lights danced briefly in the black eyes of the bird as, deep in its instructional address space, bracket after bracket was finally closing,if clauses were finally ending, repeat loops halting, recursive functions calling themselves for the last few times.
Spartacus recorded a series of demonstration and instructional tapes, while Louie used his family's contacts and influence to cut red tape for the necessary licenses and business permits.
It wasn’t these instructionals as such that generated the cash surplus, they explained: it was the equipment and the alternative medicines you needed in order to get the optimum effect.
Robson was one of 143 city employees who've been hurt on the basketball courts, which suggests a dire need for helmets, cups, instructional videos and Nerf balls.
Her mother selected the instructional records for the child's formal primary education and cultural orientation.
You who read the words I here inscribe upon the pages of a Boorum & Pease record book or journal with the same dependable Mont Blanc fountain pen used in former days to draft my instructional missives to the world already know the significance of the ruined house to Your Great Race.