Formalização das Proporções: conceitos e linguagem algébrica

Section role: supports the 'Formalizando as Proporções' section while the teacher uses group findings from the previous table challenge to introduce algebraic definitions. Slides: (1) Title — 'Formalizando as Proporções'; (2) Recap of Scenario A — bullets: machine and T-shirt data from the group challenge, highlighting constant ratio; (3) Definition of GDP — algebraic formula y/x = k with explicit vocabulary; (4) Recap of Scenario B — bullets: speed and travel time data from the group challenge, highlighting constant product; (5) Definition of GIP — algebraic formula x * y = k; (6) Common Pitfall Alert — example comparing age and height to show that not all increasing variables are proportional; (7) Video walkthrough prompt — visual check of direct and inverse behavior; (8) Transition slide — connecting the algebraic rules to the upcoming radar activity. Closing slide: 'Como podemos provar algebricamente que duas grandezas são proporcionais?' — sets up the independent classification task.

Lara da Teachy