Building a paper plane is an interesting topic but I have to ask who is designing this glider?
As a 10 year old I fell fowl of this sort of thing in a "bring something you have built" school competition.
I took a stick and tissue scale static model of the R101 airship that my Dad had drawn up plans after I has expressed interest in an article in a news paper. I was perfectly able and did build it all myself.
To my mind it was streets ahead of anything else entered. Did I win? no.
The head master knew my Dad was a serious model engineer so he felt it was unfair. He did explain to me the reasons before the prize giving. As a consolation I was awarded "special mention". No matter as the R101 model did impress my school mates which was far more important!
I remember moments when I was also asked to do such projects at school. Of course, I couldn't do anything myself, all the work fell to my mom. Then I just painted and that's it. It really took a lot of time. Because of this, sometimes I had to use a writing service, I used
https://ca.edubirdie.com/ for this. Mom hated it, but I liked it. So she pretended that she enjoyed it.