Exploring Integer Operations with Changing Signs

Mr. Cassidy's lesson focuses on integer operations, specifically adding and subtracting positive and negative numbers. The lesson uses a number line as a visual aid and introduces rules for handling operations with parentheses. Students practice rewriting and solving problems using these rules, aiming for mastery before moving on.

What is the primary focus of the lesson discussed by Mr. Cassidy?

• Geometric shapes

• Fraction operations

• Integer operations

• Algebraic expressions

If you start with a number on a number line and move to the right, what operation are you performing?

• Division

• Subtraction

• Addition

• Multiplication

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

What should you do if you see a plus sign followed by a positive number in parentheses?

• Convert it to a subtraction

• Convert it to an addition

• Leave it as is

• None of the above

Tags

CCSS.7.NS.A.1B

How do you simplify an expression with a minus sign followed by a positive number?

• Leave it as is

• Convert it to a multiplication

• Convert it to a subtraction

• Convert it to an addition

Tags

CCSS.7.NS.A.1D

According to the 'rule of two sticks', what does subtracting a negative number equate to?

• Adding a positive

• None of the above

• Subtracting a positive

• Multiplying two negatives

Tags

CCSS.7.NS.A.1C

What should you do if you encounter a subtraction followed by a negative number?

• Leave it as is

• Change it to multiplication

• Change it to addition

• Change it to subtraction

Tags

CCSS.7.NS.A.1C

What operation does adding a negative number equate to?

• Multiplying a negative

• Subtracting a positive

• None of the above

• Adding a positive

Tags

CCSS.7.NS.A.1C

In the expression 4 plus negative 3, what does this simplify to?

• 1

• None of the above

• 4 minus 3

• 7

Tags

CCSS.7.NS.A.1C

What is the result of subtracting 6 from 8?

• -14

• 14

• 2

• -2

Tags

CCSS.7.NS.A.1C

If you start at negative three on a number line and move right two units, where do you end up?

• -1

• -5

• 1

• 5

Tags

CCSS.7.NS.A.1B