Posições Relativas entre Pontos, Retas e Planos no Espaço

Section role: supports the 'Posições Relativas entre Pontos, Retas e Planos' section while the teacher explains the foundational postulates of spatial geometry and relative positions. Slides: (1) Entes Primitivos — bullets: definition of point, line, and plane as primitive entities without formal definition, building on the classroom spatial awareness from section 1; (2) Determinação do Plano — bullets: how three non-collinear points define a single unique plane α; (3) Posições Relativas de Duas Retas Coplanares — bullets: parallel, intersecting, and coincident lines in the same plane; (4) Retas Reversas — bullets: key vocabulary, definition of non-coplanar lines that never intersect and are not parallel, addressing the common misconception introduced in the narrative outline; (5) Posições entre Reta e Plano — bullets: line contained in the plane, line parallel to the plane, and line intersecting (secant) the plane; (6) Posições entre Dois Planos — bullets: parallel planes with no common points versus secant planes whose intersection forms a line; (7) Demonstração Visual e Ortogonalidade — bullets: Eduardo Wagner's video concept illustrating orthogonality and perpendicularism; (8) Desafio Conceitual — bullets: 'Se duas retas não possuem pontos em comum no espaço, elas são necessariamente paralelas?', analysis of skew lines. Closing slide: 'Como diferenciar visualmente uma reta paralela de uma reta reversa?' — hands control back to the teacher to transition into structural analysis in solids.