7 th Grade Math Week of 8/18/14

Monday: Bell Work 1) = 2) 3.8 – 1.25 = 3) round to tenths

1. Estimate What does this word mean to you? This word actually means….. find an answer close to the exact answer. Examples… Explain how you would use this word in math.

Lesson Absolute Value and Opposites: 7. NS.1a Describe situations in which opposite quantities combine to make 0.

Lesson Absolute Value: –How far a number is from zero. Example "6" is 6 away from zero, but "-6" is also 6 away from zero. So, the absolute value of 6 is 6, and the absolute value of -6 is also 6. The symbol "|" is placed either side to mean "Absolute Value", so we can write: |-6| = 6 value.html

Additive Inverses (opposites) What you add to a number to get zero. The negative of a number. Example: The additive inverse of -5 is 5, because = 0. The additive inverse of +5 is -5 as well.

Exit / Closure Write in your NB (composition notebook) 3 things that you learned today. **** Share with a friend.

Tuesday: Bell Work 1)|-28| = 2)-|32| = 3) - 29 _____ -30

2. Evaluate What does this word mean to you? This word actually means….. to find the value of a numerical or algebraic expression Examples… Explain how you would use this word in math.

Lesson Integers with operations: SPI Solve contextual problems that involve operations with integers.

-|-8| = -8 *If the negative is outside the absolute value bar, it will create a negative answer. It is the same as multiplying the answer by -1. *Can be written -1 |-8| = -8

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Foldable Addition Multipli- cation Division subtraction

Addition Notes 1)2 integers with same sign - Add the absolute values -Keep the same sign = =7 2) 2 integers with different signs - find the difference of the absolute values - keep sign of the greater absolute value = = 2 *same signs add and keep/ different signs subtract Key words: Deposit, ascend, rose, gain, increase, above

Subtraction Notes 1)Change all subtraction problems to addition problems -Add the opposite following the addition rules (-3) 7+ (-15) = = (-3) = -8 *you can add the opposite because they are inverse operations and “Undo” each other Key words: withdrawal, descend, loss, lowest, decrease, below

Exit / Closure Give 3 examples of why it would be important for you to know the how to subtract/ add integers.

Wednesday: Bell Work 1) = 2)Round to the nearest tenths 3)-4 – (-7)

Lesson Integers with operations: SPI Solve contextual problems that involve operations with integers.

3. Justify What does this word mean to you? This word actually means….. to give a satisfactory reason for something done / create a viable argument. Examples… Explain how you would use this word in math.

Multiplication Notes When multiplying 2 integers -If the sign is the same *positive answer -If the sign is different *negative answer + + = +6 6= = = = = = = -14 Key words: of, times

Multiplying & Dividing Integers + _ _

Division Notes When dividing 2 integers -If the sign is the same *positive answer -If the sign is different *negative answer + ÷ + = +8 ÷ 2 = 4 - ÷ - = +-6 ÷ -3 = 2 -÷ + = - -9 ÷ 3 = -3 + ÷ - = - 4 ÷ -2 = -2 Key words: per, quotient

Exit / Closure Why is it important to know the difference between a withdrawal and an deposit?

Thursday: Bell Work 1) = 2) 3 – (-7)= 3) round to tenths

4. Quantity What does this word mean to you? This word actually means….. total value of a given group or specific amount. Examples… Explain how you would use this word in math.

Lesson N2K: SPI Solve contextual problems that involve operations with integers N2K 1

Critical Thinking Activity 1. Sean has a checking account at USA Bank. He deposited 3 checks, each for $202. He then bought a new video game system for $499. What integer best describes Sean’s current bank account balance? A) +$107 B) –$107 C) +$297 D) –$297

1. Denver, Colorado is called “The Mile High City” because its elevation is 5280 feet above sea level. Someone tells you that the elevation of Death Valley, California is −282 feet. Is Death Valley located above or below sea level? Cite evidence from the paragraph to justify your reasoning. How many feet higher is Denver than Death Valley? Show your work. What would your elevation be if you were standing near the ocean? Draw a picture of where you would be standing in comparison to both Denver and Death Valley.

Exit / Closure What did you learn about today’s N2K? Do you have questions about the process?

Friday: Bell Work The man wrote 3 checks ($28.52, $14.38, $31.21). The beginning checking account balance was $ What is his remaining balance.

5. Coefficient What does this word mean to you? This word actually means….. the number that is multiplied by the variable in an algebraic expression/equation. Examples… Explain how you would use this word in math.

Lesson Contextual Integers: SPI Solve contextual problems that involve operations with integers. Work on the contextual problems

Exit / Closure List key words that helped you understand what operation to perform.