teaching reading vs instruction

teaching reading and instruction both are nouns.

Word	Noun	Adjective	Verb	Adverb
teaching reading	Yes	No	No	No
instruction	Yes	No	No	No

As nouns, instruction is a hypernym of teaching reading; that is, instruction is a word with a broader meaning than teaching reading:

Other hypernyms of teaching reading include pedagogy, teaching.

teaching reading (noun)	instruction (noun)
teaching beginners to read	the profession of a teacher
	the activities of educating or instructing; activities that impart knowledge or skill
	(computer science) a line of code written as part of a computer program
	a message describing how something is to be done