The act of giving instruction or important information

The correct answer to this open question is the following.

Here we have a statement, not a question. It seems that you forgot to include the question.

However, in order to help you, we can say the following.

The act of giving instruction or important information can be understood as an order. To give orders with good grammar, you use the imperative mode

If you are referring to the proper way to give instructions as a leader or in the corporate world, you need to do it properly, respectfully, but in an energetic way to express authority. It is a command, expressed with respect, but a command that needs to be obeyed.

in other words

to put it differently

for one thing

as an illustration

in this case

for this reason

to put it another way

that is to say

with attention to

by all means

important to realize

another key point

first thing to remember

most compelling evidence

must be remembered

point often overlooked

to point out

on the positive side

on the negative side

with this in mind

notably

including

like

to be sure

namely

chiefly

truly

indeed

certainly

surely

markedly

such as

especially

explicitly

specifically

expressly

surprisingly

frequently

significantly

particularly

in fact

in general

in particular

in detail

for example

for instance

to demonstrate

to emphasize

to repeat

to clarify

to explain

to enumerate