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Estimating Areas of Plane Figures

Estimating Areas of Plane Figures
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2021-11-08 21:13
PolygonGeometric Construction
In collections Wiederholung: Längen- und Flächenmaße Wiederholung: Flächen- und Raummaße
This example uses geometric construction to help students estimate the areas of plane figures. Key mathematical concepts include the association of area units and area estimation based on support points. Commands used include Polygon, Textfield, Shuffle, etc. Suitable for students in grades 5-6.

GeoGebra Commands & Parameters

  1. Shuffle(Sequence[Random[1, 8], i, 1, 100]) → randomNos, {2, 8, 5, 6, 6, 7, 5, 2, 7, 2, 5, 6, 7, 5, 6, 6, 2, 2, 5, 2, 4, 3, 1, 1, 3, 5, 4, 7, 7, 1, 2, 2, 3, 8, 5, 7, 3, 8, 5, 8, 3, 6, 8, 1, 7, 4, 2, 3, 8, 5, 1, 8, 1, 7, 5, 1, 1, 5, 5, 4, 4, 5, 5, 8, 4, 5, 1, 4, 5, 2, 8, 1, 2, 7, 6, 2, 2, 4, 5, 1, 8, 6, 8, 3, 6, 8, 4, 3, 3, 3, 3, 1, 4, 4, 3, 3, 2, 6, 6, 4}
  2. Textfield(aInput) → InputBox1
  3. Textfield(bInput) → InputBox2
  4. Polygon(PtopLeftCornerFeedback, PtopRightCornerFeedback, PbottomRightCornerFeedback, PbottomLeftCornerFeedback) → rectangleCorrect, ptopleftcornerfeedback, ptoprightcornerfeedback, pbottomrightcornerfeedback, pbottomleftcornerfeedback
  5. SelectedIndex(dropdown) → index

AI Drawing Prompt Reference

Draw a polygon with 2 to 8 sides, with side lengths randomly distributed between 1 and 8. Draw a square as a reference, with side length 3. Draw a rectangle as a reference, with longer side length 8 and shorter side length 3. Draw a polygon with side lengths determined by user input. Finally, draw the vertices of the polygon in the order chosen by the user.
The prompt above was compiled from the original drawing commands and is for reference only.