todays notes

today in class, we learned about this thing called a population pyramid which is a kind of chart that compares the population of men to women in a state, country, or region. we use population pyramids to analyze growth of fertility, mortality, and migration in cities. there are also three basic shapes of a population pyramid being is a triangle which is the christmas tree, a box, and a cup. plus in class today, we had a shadow with us that was being homeschooled and played football.