If-Then Form
Counter-
Example
Converse
100

Ninth graders are in Geometry.

What is "If you are a ninth grader, then you are in Geometry."

100

If a number squared is 9 then the number must be 3.

What is "The number could be -3"

100

If the child is 5 years old, then they are in kindergarden.

What is "If a child is in kindergarden, then they are 5 years old"

200
Puppies are small.
What is "If an animal* is a puppy, then it is small" *answers may vary for this
200
Geometry students never bring bagels in for the class on Mondays.
What is "Students may bring bagels in August 21" (NOTE: STUDENTS MUST BRING IN BAGELS TO RECEIVE CREDIT FOR THIS QUESTION)
200
If there is snow on the ground, flowers are not in bloom.
What is "If flowers are not in bloom, then there is snow on the ground."
300
A line contains at least 2 points.
What is "If a shape* is a line then it contains at least 2 points." *answers may vary for this
300

What is, "Any three points must lie on a line."

What is Points A, B, C that are not on the same line (must have a picture)

300
If a = b, and b = c, then a = c.
What is "If a = c, the a = b, and b = c."
400
A plane contains at least 3 collinear points
What is "If a shape* is a plane, then it contains 3 collinear points." *answers may vary for this
400
If points are coplanar, then they are collinear.
What is "Points A,B, and C that are on the same plane but not the same line" (must have a picture)
400
If 2 points lie on a plane, then the line containing them lies in the plane.
What is "if a line containing 2 points lies in a plane, then the two points lie on the plane"
500
Midpoints divide a segment into two congruent segments.
What is, " If a point is a midpoint, then it divides a segment into two congruent segments."
500
The square root of any number must be smaller than the original number.
What is " 0, or 1, or any number given between 0 and 1"
500

If a triangle is a right triangle, then c2+b2=c2

If a triangle satisifies c2=b2+a2, then the triangle is a right triangle

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