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Multiplication as Repeated Groups

対象: Primary Schoolカテゴリ: Math

説明

Demonstrates multiplication as repeated equal groups using colored dot arrays. Two examples are shown: 3×4 (three groups of four) and 2×5 (two groups of five). Groups appear one at a time, then dots rearrange into a neat grid with the equation label.

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Multiplication as Repeated Groups

Description

Demonstrates multiplication as repeated equal groups using colored dot arrays.
Two examples are shown: 3×4 (three groups of four) and 2×5 (two groups of five).
Groups appear one at a time, then dots rearrange into a neat grid with the equation label.

Phases

# Phase Name Duration Description
1 Title card 3 s Title "Multiplication as Repeated Groups" fades in
2 3×4 intro label 2 s "3 groups of 4" text appears
3 Groups appear (3×4) 6 s Three colored groups of 4 dots pop in one group at a time
4 Grid rearrange (3×4) 4 s Dots animate into a 3×4 array; equation "3×4=12" shown
5 Clear & 2×5 intro 2 s Fade out; "2 groups of 5" text
6 Groups appear (2×5) 5 s Two groups of 5 dots appear
7 Grid rearrange (2×5) 4 s Dots form 2×5 array; equation "2×5=10" shown
8 Summary 4 s Both equations side-by-side; fade out

Layout

+------------------------------------------------+
|   Multiplication as Repeated Groups            |
|                                                |
|   [equation: 3 × 4 = 12]                      |
|                                                |
|   [ Group 1 ]  [ Group 2 ]  [ Group 3 ]       |
|   ● ● ● ●      ● ● ● ●      ● ● ● ●          |
|                                                |
|   (after rearrange: 3 rows × 4 cols grid)      |
+------------------------------------------------+

Area Descriptions

Area Content Notes
Top banner Title text Large white text
Middle label Group description & equation Bright yellow MathTex
Center Dot groups / grid Colored dots (large, kid-friendly)
Group boxes Rounded rectangles around groups Different pastel colors

Assets & Dependencies

  • Fonts: LaTeX (MathTex), Manim default (Text)
  • Colors: YELLOW (label), BLUE, GREEN, ORANGE, PINK (group colors), WHITE (grid dots)
  • Background: #1a1a2e
  • Manim version: ManimCE 0.19.1

Notes

  • Groups are VGroups of Dot objects inside a SurroundingRectangle.
  • Rearrange into grid uses .animate.move_to() on each dot individually.
  • LaggedStart used for group-by-group appearance.