Two‑Set Problems with Venn Diagram

Overview

A concise walkthrough of solving a classic two‑set word problem using a Venn diagram. Viewers see the diagram built step‑by‑step, watch the arithmetic appear in the appropriate regions, and finally see the three answers displayed.

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Phases

#	Phase Name	Duration	Description
1	Title & Intro	~4s	Title "Two‑Set Problems" fades in on a whiteboard‑style background; a silhouette of a teacher appears beside it.
2	Problem Statement	~8s	The text of the problem is written line‑by‑line on the board.
3	Draw Venn Diagram	~6s	Two overlapping circles labeled "Mathematics" and "Science" are drawn.
4	Fill Intersection	~5s	The number 10 appears in the overlapping region.
5	Only Mathematics	~6s	The number 15 fades into the left‑only region while the teacher’s voice‑over explains $25-10=15$.
6	Only Science	~6s	The number 8 appears in the right‑only region with the explanation $18-10=8$.
7	Sum Inside Diagram	~7s	The expression $15+10+8=33$ is written below the diagram, then highlighted.
8	Outside Both Sets	~7s	The expression $40-33=7$ is written, and the number 7 appears in a shaded area outside the circles.
9	Final Answers	~6s	A bullet list of the three answers (15, 8, 7) slides in beneath the diagram.
10	End Screen	~4s	Prompt “Practice more Venn diagram questions to improve!” fades in.

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Layout

┌─────────────────────────────────────────────┐
│                                             │
│                 MAIN (diagram)              │
│                                             │
├─────────────────────────────────────────────┤
│ Caption / step label (small, optional)      │
└─────────────────────────────────────────────┘

Area Descriptions

Area	Content	Notes
Main	Venn diagram circles, numbers, arithmetic expressions, final bullet list	Central visual focus; occupies ~80 % of frame height
Caption	Short step title (e.g., “Only Mathematics”) that appears briefly during each arithmetic phase	Optional; fades out when the next step begins

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Notes

• All text appears as hand‑written style to match a classroom whiteboard.
• Numbers and equations fade in rather than pop, giving a smooth educational pacing.
• The teacher silhouette remains static on the left side throughout; only the spoken narration changes.
• No additional scenes or split screens are needed; the entire narrative fits within a single Scene class.
• Total runtime is approximately 65 seconds, well within the 1–2 minute target.