The overly competitive parent trying to compensate for an unfulfilling youth by projecting onto their kid vs the parent who'll say you're number one for simply participating.

Medhimama (The blue-haired mom on the left) is trying to cast Confusion / Sleep Spells on the whole class so her daughter, Medhi, will be the only student able to properly answer the teacher's questions.

Meanwhile Mamako's just standing there, waving and wishing her son good luck. It just so happens that her elbow armor comes with perfect resistance to status ailments, so her mere presence is nullifying Medhimama's spells.