Maths
Polygon dissections
Images
3d model information
Technology:
FDM
Material:
PLA
Sizes:
12 cm x 12 cm x 0,4 cm
Accuracy:
High
Resistance:
High
Printing time:
1 h
Number of pieces:
10 copies of every puzzle
STL Files Viewer
Summary
The activity is about making some polygons with the given pieces. The same pieces may form several polygons. This is known as dissection.
Learning objectives
To improve the geometric comprehension. To gain understanding when adding or comparing angles and edges.
Teacher preparation
There is no need for specific preparation. The teacher must be familiar with the specific dissections in case they need to offer hints.
Teacher explanation
The teacher introduces the concept of dissection of a polygon.
Student activity/Steps
- The students try to make the polygon that the teacher proposes making progress by trial and error.
- The students must be accurate when considering angles in the pieces of the puzzle.
- Take notes and draw the progress made in a notebook.
General Info
Age of students
12-13
Skills needed
None. Basic knowledge on angles.
Duration
2 sessions
Individual/Groups
Group
Materials
PLA, notebook, protractor, graduated ruler.
Tools
notebook, goniometer and graduated scale
Software
Cura
License Info
License name:
Attribution 4.0 International (CC BY 4.0)
License details:
You are free to: Share — copy and redistribute the material in any medium or format. Adapt — remix, transform, and build upon the material for any purpose, even commercially. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
More info:
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