Guess My Rule:
Guess my rule is a game or puzzle where, by looking at examples
(shapes) that fit a rule, "you" figure out and guess the rule. In
this file. This homework assignment has 4 Venn diagrams.
Your job is to look at what is in each set (and what is not in each
set) to figure out what the rule is for each set. My set rules
are properties like these:
- the
shape has (or doesn’t have) curved sides
- the shape has a certain number of sides (or a certain number of
straight sides) for example: "shapes with 4 straight sides" or
"shapes with at least 5 sides"
- the shape has a certain number of interior right (or obtuse or
acute or reflex)
angles. For example: "shapes with at least 2 interior obtuse
angles
- the shape is concave
(or convex)
- the shape has some number of equal length sides. For
example: "shapes with at least two equal sides
- having symmetry. For example: "shapes with at least one
symmetry line" or "shapes with exactly one symmetry line"
Send me an e-mail if you want to see examples of any of these
properties.
Here is the sheet of Venn diagrams for you to figure out: as a Word document, and as a pdf. The shapes on these diagrams are
just small versions of the lettered shapes on your shapes
page. I have not put in all of the shapes on all of the Venn
diagrams: only the ones I thought would be most likely to be
useful. For example, if one of the properties was "has a right
angle" and there is a shape with an angle close to, but not exactly a
right angle, then I left it out, and didn't put it anywhere on the
diagram, because I thought that would just be confusing.
You don't have to turn in the page with the pictures on it, you can
just submit a file with the properties you figured out for the
sets. Your answer will be counted as correct if it works
for all of the shapes on the diagram (there is one set for which there
are two different ways of stating the property that all of the shapes
have--both answers would be correct).
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