Nivan Unlocks the Triangle Area Relationship

Create one continuous premium Grade 6 mathematics animation titled “Nivan Unlocks the Triangle Area Relationship”. Use the rectangle-and-triangle comparison shown in the supplied Section 6.3 material. Make the whole rectangle and its triangular half easy to compare. Keep the narration aligned with the diagram. SEQUENCE 1 — RECALL THE WHOLE RECTANGLE Visual: show a rectangle divided by a diagonal into two equal-area triangles. Shade the full rectangle, then highlight only one triangle. Narration: “The rectangle is made of two equal-area triangles. One triangle is one of two equal parts of the rectangle.” SEQUENCE 2 — CONNECT THE AREAS Visual: display “Area of rectangle = area of triangle 1 + area of triangle 2”. Because the two triangles have equal areas, show that either triangle has half the rectangle's area. Narration: “The area of the whole rectangle is the sum of the areas of both triangles. Since the two areas are equal, one triangle has half the area of the rectangle.” SEQUENCE 3 — USE BASE AND PERPENDICULAR HEIGHT Visual: show a simple rectangle with a clearly marked base and perpendicular height. Highlight one triangular half. Connect rectangle area, base × height, to half of that area for the triangle. Display “Triangle area = ½ × base × perpendicular height”. Narration: “The area of a rectangle is its base multiplied by its perpendicular height. A triangle that is half of that rectangle has half of that area.” SEQUENCE 4 — CHECK THE RELATIONSHIP Visual: use a simple rectangle on a square grid and shade one triangular half. Count the grid squares in the full rectangle, then show that the triangular half has half as much area. Avoid tiny labels or ambiguous dimensions. SEQUENCE 5 — MEMORY CARD Display: “Triangle area = half the area of its corresponding rectangle.” Then show the relationship “½ × base × perpendicular height” as a visual summary.