AnimGロゴAnimG

Negative Numbers on the Number Line

対象: Middle Schoolカテゴリ: Math

説明

Introduces negative numbers by showing a number line from -10 to +10 and demonstrating that numbers extend to the left of zero. Students see that negative and positive numbers are mirror images, then practice addition and subtraction using animated hops.

このアニメから作る

Negative Numbers on the Number Line

Description

Introduces negative numbers by showing a number line from -10 to +10 and demonstrating that numbers extend to the left of zero. Students see that negative and positive numbers are mirror images, then practice addition and subtraction using animated hops.

Phases

# Phase Name Duration Description
1 Number Line Intro 6s Draw the number line from -10 to +10 with tick marks and labels. Highlight zero.
2 Mirror Images 8s Place +3 (blue dot) and -3 (red dot). Draw a dashed mirror line at zero. Animate both dots appearing symmetrically.
3 Addition with Negatives 10s Start at 5 (blue), hop left 3 times to show 5 + (-3) = 2. Label each hop.
4 Subtraction Across Zero 8s Start at 2, hop left 5 steps to show 2 - 5 = -3. Land on red zone.
5 Summary 6s Show key takeaways: negative numbers are left of zero, subtraction can cross zero.

Layout

+------------------------------------------------------+
|                                                      |
|   [Title: Negative Numbers on the Number Line]       |
|                                                      |
|   <----+----+----+----+--0--+----+----+----+---->    |
|       -10  -8   -6   -4   -2    2    4    6    8    |
|                                                      |
|   [Formula / equation display]                       |
|   [Phase label / annotation]                         |
|                                                      |
+------------------------------------------------------+

Area Descriptions

Area Content Notes
Top Title text Fades in at start
Center Number line Persistent through animation
Center overlays Colored dots, hop arcs Red = negative, Blue = positive
Bottom Equations and annotations Updates each phase

Assets & Dependencies

  • Fonts: LaTeX / sans-serif
  • Colors:
    • Positives: BLUE (#3B82F6)
    • Negatives: RED (#EF4444)
    • Zero: YELLOW (#F59E0B)
    • Number line: WHITE
    • Background: #1a1a2e
  • Manim version: ManimCE 0.19.1

Notes

  • Hops are arc-shaped (CurvedArrow or Arc) drawn above the number line.
  • The mirror dashed line at zero visually reinforces symmetry.
  • Audience: ages 11-14; keep language simple in on-screen text.