Counterexamples

Counterexamples

9th - 12th Grade

10 Qs

quiz-placeholder

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Counterexamples

Counterexamples

Assessment

Quiz

Mathematics

9th - 12th Grade

Medium

CCSS
W.11-12.2D, L.11-12.4C, HSA.REI.A.2

+18

Standards-aligned

Created by

Ms. Edwards

Used 24+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A counterexample is an example that proves a conjecture to be true.

True

False

Tags

CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To fully disprove a conjecture, one needs to find only ONE counterexample.

True

False

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

x = 4

x = -2

x = 2

x = -4

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

How many counters would come next?

5
7
9
11

Tags

CCSS.4.OA.C.5

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How can you prove a conjecture is false?

Counterexample
Not Possible
Patterns

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If an animal is furry, then it is a hamster. What would be an appropriate counterexample?

goldfish
frog
elephant
cat

Tags

CCSS.L.6.5B

CCSS.L.8.5B

CCSS.W.11-12.2D

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which is a counterexample of: If a four sided shape has two sides the same length, then it must be a rectangle.

quadrilateral
rectangle
square
triangle

Tags

CCSS.2.G.A.1

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