Probabilidade e genética: uma abordagem interdisciplinar

Abstract

This work presents a list of problems for teaching High School students (at their sec- ond year) probability, using genetics as the teaching basis through crossing analysis and descendants’ characteristics. The problems here proposed are sequenced and divided ac- cording to the following themes: sample space, probability of independent events and conditional probability. They were solved in different ways by using tree diagram, Punnet square, distributivity and probability formulas, aiming at giving the students a better understanding of the content and avoiding that they simply memorize the AND and OR rules when it comes to the probability of two or more independent events taking place simultaneously. It is hoped that this work may be helpful to assist the math teacher to teach probability in a more contextualized way and, at the same time, assist the biology teacher in the teaching of genetics. Yet it is expected that the students may have a real understanding of the contents once they have different tools in their hands.