The class was having a pizza party to celebrate the end of the school year. There were 28 students in the class, and each student wanted to eat at least two slices of pizza. The pizza shop offered large pizzas with 8 slices each.

The teacher, Mr. Patel, wanted to make sure there were enough pizzas for everyone. He knew that 28 students * 2 slices/student = 56 slices. So, he needed to calculate how many pizzas to order.

He divided the total number of slices needed by the number of slices per pizza: 56 slices ÷ 8 slices/pizza = 7 pizzas.

Therefore, Mr. Patel ordered 7 large pizzas for the class party, ensuring that there would be enough for everyone to enjoy.