Complex task in mathematics

As part of a complex task, third graders, led by a math teacher, decided to determine what ingredients were needed to bake the pizza (weight / quantity of each product), set product prices, and finally calculated the cost of 1 pizza.

The students independently bought the necessary ingredients, counted the money and calculated the amount owed. From the products brought, the chef of our school baked the required number of pizzas. The whole part of the "delicious lesson" was defined. Students were actively and with great interest involved in the activities.