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Sheep Pen Puzzle: Area & Perimeter Builder

  • Feb 2
  • 2 min read
  • The Mission: 

    The sheep need a new home! You are the farmer, and you have received a specific construction order. You must draw a rectangular fence on the grass grid that matches the exact Area (space inside) AND Perimeter (length of the fence) requested on the sign.


  • Math Skills:

    • Area vs. Perimeter: Distinguishing between space inside (L×W) and distance around (2L+2W).

    • Geometry: constructing shapes based on numerical constraints.

    • Multiplication & Addition: Using factors to find dimensions that satisfy two conditions at once.


  • How to Play:

    1. Read the Sign: Look at the wooden sign board. It will ask for a specific Area (e.g., 12) and Perimeter (e.g., 14).

    2. Plan the Shape: Think before you draw!

      • Area 12 could be 2×6 or 3×4.

      • Check Perimeter: 2×6 has a perimeter of 16 (Too big). 3×4 has a perimeter of 14 (Correct!).

    3. Draw the Fence: Click and drag on the grid to draw the rectangle. You can toggle "Erase Mode" if you make a mistake.

    4. Watch the Stats: The live counter updates the Area and Perimeter as you draw.

    5. Submit: When your fence matches both numbers on the sign, click "Submit".


    羊圈拼圖:面積與周界建造師

  • 任務簡介: 

    綿羊需要一個新家!身為農夫,你收到了一張建造訂單。你必須在草地網格上畫出一個矩形圍欄,使其 面積(內部空間)和 周界(圍欄長度)完全符合木牌上的要求。


  • 數學技能:

    • 面積 (Area) vs 周界 (Perimeter): 區分圖形內部的空間 (長×闊) 與圍繞圖形的距離 (2×長+2×闊)。

    • 幾何構圖: 根據數字條件繪製圖形。

    • 乘法與加法: 運用因子概念找出同時滿足兩個條件的邊長。


  • 玩法說明:

    1. 閱讀木牌: 看木牌上的要求。它會指定 面積(例如:12)和 周界(例如:14)。

    2. 規劃形狀: 畫圖前先思考!

      • 面積 12 可以是 2×6 或 3×4。

      • 檢查周界:2×6 的周界是 16(太大了)。3×4 的周界是 14(正確!)。

    3. 建造圍欄: 在網格上點擊並拖動以 繪畫 出矩形。如果畫錯了,可以切換「擦除模式」。

    4. 監察數據: 即時計數器會隨著你繪畫而更新當前的面積和周界。

    5. 提交: 當你的圍欄數據與木牌完全一致時,點擊 「提交」(Submit)

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