“Teacher: Open up to page 26!” is the start of a joke that went viral on September 27, 2018. The teacher is instructing students to open up their books to page 26, but the joke has it that the students open up their hearts to page 26. The first version appears to have been posted on Twitter by Candy Johns Corn on September 27, 2018:
 
TEACHER: Open up to page 26
ME: *to page 26* I feel like my mom is disappointed in me.
   
     
Twitter
Candy Johns Corn
@FrazzleMyGimp
TEACHER: Open up to page 26
ME: *to page 26* I feel like my mom is disappointed in me.
11:12 AM - 27 Sep 2018
   
Twitter
👻 Matt Will Ghost 👻
@MattPostSaysHi
TEACHER: Open up to page 26
GUY: *To page 56* I’m blind and nobody has noticed
11:16 AM - 27 Sep 2018
   
Twitter
Llama In A Tux
@LlamaInaTux
TEACHER: Open up to page 26
ME: *to page 26* Katherine has blocked my number but I just want closure
11:17 AM - 27 Sep 2018
   
Twitter
The Great Stoned Dragon
@KickSumHunibuns
TEACHER: Open up to page 26
ME: *to page 26* People tell me i’m too literal
11:20 AM - 27 Sep 2018
   
Twitter
harkonnen
@exploradorca
Replying to @TheHyyyype
Teacher: open up to page 26
Me: I can’t. we don’t know each other that well.
11:59 AM - 27 Sep 2018
   
Twitter
route 69
@HighwayDoCare
Teacher: open up to page 26
Me: [to page 26] I’ve just feeling so depressed lately and I have no idea what I’m doing with my life
12:09 PM - 27 Sep 2018
 
Twitter
French Benefits, C’est Moi
@10kbabyspiders
Teacher: Open up to page 26.
Me (talking to my book): So I guess the reason is because my dad was distant emotionally and my mom had social anxiety.
1:40 PM - 27 Sep 2018
 
Reddit—Dad Jokes
Poor Sap… (self.dadjokes)
submitted October 9, 2018 by Harry_Potter_Memes
Teacher: Open up to page 275
Me: to page 275 I feel like my dad is dissapointed in me and I don’t know why.