What it the Sign Sign Phenomenon?
Sign Sign
Jan 19, 2015
These cards will help students identify the sign sign phenomenon. This is when we are adding or subtracting a negative.
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Transcript
What it the
Sign Sign
Phenomenon?
What it the
Sign Sign
Phenomenon?
It is when there are two symbols in a row in an expression.
Ex. 2+(-4) -5-(-8)
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+(-5)
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+(-5)
Yes
Does the expression below exhibit the
Sign Sign
Phenomenon?
-5-8
Does the expression below exhibit the
Sign Sign
Phenomenon?
-5-8
No
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+(-8)+(-7)
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+(-8)+(-7)
Yes
Does the expression below exhibit the
Sign Sign
Phenomenon?
-12+9
Does the expression below exhibit the
Sign Sign
Phenomenon?
-12+9
No
Does the expression below exhibit the
Sign Sign
Phenomenon?
-(-9)+8
Does the expression below exhibit the
Sign Sign
Phenomenon?
-(-9)+8
Yes
Does the expression below exhibit the
Sign Sign
Phenomenon?
8-7
Does the expression below exhibit the
Sign Sign
Phenomenon?
8-7
No
Does the expression below exhibit the
Sign Sign
Phenomenon?
-9-10+9
Does the expression below exhibit the
Sign Sign
Phenomenon?
-9-10+9
No
Does the expression below exhibit the
Sign Sign
Phenomenon?
0+(-9)
Does the expression below exhibit the
Sign Sign
Phenomenon?
0+(-9)
Yes
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+-5
Does the expression below exhibit the
Sign Sign
Phenomenon?
4+-5
Yes
Does the expression below exhibit the
Sign Sign
Phenomenon?
2--7
Does the expression below exhibit the
Sign Sign
Phenomenon?
2--7
Yes
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