[Sec 3 and up: Biology / Psychology] Want to be a psychologist? Here you go~ Perceptual constancy, one of the terms under the umbrella term of visual cues, isn't something you really have to learn, technically, but it's nice to know that some of the coolest things our eyes and minds do aren't even being consciously thought of. Manipulating the depth of the way we view things allow us to understand it better in 3-dimensional space. Of course, that's not the only property at pl

[P6 Maths and up: Tessellations] You might remember that one topic where you're supposed to draw 8 copies of parallelograms around one to complete. Yeah, that one. It's from a field of mathematics that's easy to understand, but hard to fully grasp - Geometry. For those from secondary schools and up, here's a question: Isn't it sort of weird how you learned about something like that in Primary school, yet you pretty much never use it at all in your secondary school or tertiary