It is, to someone that knows what an axis of symmetry is, and what the line x=3 is.

Oh, I think this works for the link.

I used to run a Minecraft server for some US middle-schoolers (public school, not math-oriented) who were very much into the game. One thing I did was create a treasure that they were obsessing over, but I didn’t want it to be an easy giveaway, so I put it a LONG way away from where they usually played in the world, and left a series of clues in books in the game world. I thought they were a bit easy to figure out. Once you got them all (which they did, quickly, eager as they were), you got a description of where the treasure was, in the form of a couple of line equations. y = mx + b. The treasure was at the intersection of the two lines, so combine the equations, solve for x and y, then use Minecraft’s ways of telling you your current coordinates, to find the treasure, right?

Nope. No clue what this was about. So they found “the smartest kid at math at their whole school”, and showed it to him. HE had no clue what this was talking about.

In other occasions, when helping kids with math homework, I was pretty shocked and dismayed to find that:

1) They were REALLY struggling with simple math homework.

2) They were basically having fear/panic reactions to math.

3) They had almost zero conceptual understanding of what the lessons were trying to teach them.

4) When I tried to bring them from their actual level of conceptual understanding, to what the problems were saying, it was very hard to get them to approach problems in terms of understanding the concepts, at all.

5) Even when I did manage to get them to understand something, they were still afraid and angry because they were sure they were supposed to do whatever rote problem response technique they’d been taught, not something based on understanding the concepts.

I wish you much better success with your students.