This specific reference material tells you how to pronounce a word, and
a word's part of speech.

Assuming you had to choose between:

The answer is dictionary.

This is the only reference material which will indicate a word's pronunciation (usually using phonetical characters and separating the syllables) as well as information like its part of speech (noun, pronoun, adjective, verb, adverb, preposition, etc.); alongside, obviously, its definition(s).

For example, this is what you can find if you search the word "dictionary" (the pronunciation and part of speech are underlined):

Dictionary. noun. \ ˈdik-shə-ˌne-rē \ : A reference source in print or electronic form containing words usually alphabetically arranged along with information about their forms, pronunciations, functions, etymologies, meanings, and syntactic and idiomatic uses.

first one is your answer

~coco

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.