at least 24 hrs
you never should text the guy first that's how i was raised!
I don't think you should wait any time at all, just text him back.
text back asap!
if you really like them, just text him/her.
You should write the notes during class and then when you have free time such as lunch or break send the text. Having your phone out in class may attract the attention of a teacher and end up in them having your phone.
Skimming.
He is clearly into you so a couple days :)
Yes I agree to that. That only during test. And Im searching this up for a project. So I think we shouldn't text unless during a test. But for a good reason, is that you can text a friend that is at the other side of school, so you don't have to travel so far.
7 weeks
Read quickly if the text is expository; read carefully if it is a narrative.
Before closely reading a text, a student should preview the material by skimming through headings, subheadings, and any introductory paragraphs to get an overview of the content. Additionally, it is helpful to identify the purpose for reading the text and establish any objectives or questions the student may have before diving into the details.
Well, you should give it a bit of time as you don't want to text back straight away, as he might think you are too desperate, but you shouldn't keep him waiting too long!