7 Draw and write the name of the structurar obtained
from the reaction betwoon water and butyne.​

Typically the statements emphasize the importance of the info being presented. the teacher could say things like "this is very important" or "here's what you need to remember". if they repeat the info multiple times, that also indicates that you need to know that info and should therefore put it in your notes. however, many teachers will just tell you "this should be in your notes" to ensure you know.