De Porta em Porta: Da Boca ao Estômago

Section role: supports the 'De Porta em Porta: Da Boca ao Estômago' section while the teacher guides students through the initial mechanical and chemical steps of digestion. Slides: (1) Title — 'Da Boca ao Estômago'; (2) A Boca: Digestão Mecânica e Química — bullets: function of teeth in crushing food, role of saliva with enzymes breaking down starch, introduction of the term 'bolo alimentar'; (3) Experimento Mental da Mastigação — bullets: prompt asking how chewing well changes the food texture and helps the rest of the body; (4) A Faringe e o Esôfago — bullets: description of the esophagus as a muscular tube, visual of swallowing; (5) Movimentos Peristálticos — bullets: explanation of involuntary pushing like squeezing a toothpaste tube, interactive question: 'Se ficarmos de ponta-cabeça, a comida chega ao estômago? Por quê?'; (6) O Estômago: O Liquidificador Biológico — bullets: introduction to gastric juice and the acidic environment; (7) Do Bolo Alimentar ao Quimo — bullets: transformation of food into a pasty mass called quimo; (8) Mito vs. Realidade — bullets: alert on the common misconception that digestion ends in the stomach, explaining it is only the beginning of processing for nutrition; (9) Closing slide: 'O que acontece com o quimo depois que ele sai do estômago?' — hands control back to the teacher to set up the mapping activity.

Lara da Teachy