This Economist videographic is great for discussing the socioeconomic impact of fertility rates. In just over 3 mins, it makes one simple point: around the world, as incomes rise in, fertility rates decline.
But it also shows that these declines have been uneven across regions & time. So it allows for a more nuanced discussion—particularly one geared at asking why fertility rates would decrease as a function of improving socioeconomic conditions (or whether a decrease in fertility rates comes before socioeconomic improvements?). Either way, it’s a great way to sneak in some structuralism.