A cartoon blue shark named Meredith the Merhaj wearing a white shirt stands at a whiteboard in a classroom, pointing with a stick at mathematical equations. The whiteboard displays "2x+3y=34" and "3x² - 7x + 4 = 0" along with a coordinate system diagram. Three empty student desks are in the foreground. The classroom features a wall clock showing around 1:40, a Singapore flag in the corner, and a world map with data visualisations.