7th Grade Math

Week of 8/25/14

Monday: Bell Work

1) Mt. Everest, the highest elevation in Asia, is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet below sea level. What is the difference between these two elevations?

6. Whole Numbers

What does this word mean to you?

This word actually means…..counting numbers including zero.

Examples… Explain how you would use this word in math.

Lesson

• Integers with operations:

• SPI 0706.2.5 Solve contextual problems that involve operations with integers.

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 -5 + 5 = 0.The additive inverse of +5 is -5 as well.

Solving Addition Equations

-3 + y = -5 Check

Practice

X + 5 = -7 k + 6 = 3 j + 56 = -7

c + c + c = 6

Solving Subtraction Equations

x – 8 = -32 Check

Practice

B – 7 = -16 a – 25 = -5 d – 15 = 45

t – 3 = 4 + 2

Solving Multiplication Equations

6x = -120 Check

Practice

9c = -99 -16 = 2z -85 = -5c

4x = 2 + 14

Solving Division Equations

a = 9 Check

-3

Practice

T = -4 n = -30 n = 9

8 -5 36

r = 8

238

Exit / Closure

• Write in your NB (composition notebook)

3 things that you learned today.

**** Share with a friend.

Tuesday: Bell Work

1) The Punic Wars began in 264 B.C. and ended in 146 B.C. How long did the Punic Wars last?

2)   Metal mercury at room temperature is a liquid. Its melting point is -39°C. The freezing point of alcohol is -114°C. How much warmer is the melting point of mercury than the freezing point of alcohol?

7. Inverse (operations)

What does this word mean to you?

This word actually means…..operations that undo each other: addition and subtraction, or multiplication and division.

Examples… Explain how you would use this word in math.

Lesson

• Integers with operations:

• SPI 0706.2.5 Solve contextual problems that involve operations with integers.

Lesson

Do/ Undo Foldable

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) Roman Civilization began in 509 B.C. and ended in 476 A.D. How long did Roman Civilization last?

2) In the Sahara Desert one day it was 136°F. In the Gobi Desert a temperature of -50°F was recorded. What is the difference between these two temperatures?

8. Operations

What does this word mean to you?

This word actually means…..the 4 basic math computations (+, -, x, ÷).

Examples… Explain how you would use this word in math.

Lesson

• Integers with operations:

• SPI 0706.2.5 Solve contextual problems that involve operations with integers. Absolute Value and Opposites: 7.NS.1a

• Describe situations in which opposite quantities combine to make 0.

Lesson

Have out your study guide to grade and check.

Exit / Closure

• Name 3 key words each for adding and subtracting.

Thursday: Bell Work

1) A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?

2) -65 - -57

3) Solve T – 4 = -35

9. Term

What does this word mean to you?

This word actually means…..the parts of an expression that added or subtracted.

Examples… Explain how you would use this word in math.

Lesson

• N2K: SPI 0706.2.5 Solve contextual problems that involve operations with integers.

• N2K 2

• Critical Thinking Activity • 1. On a winter day, the low temperature in

Anchorage was 23 degrees below zero (in C) ∘and the low temperature in Minneapolis was 14 degrees below zero (in C ). Choose the ∘inequality that best describes the relationship of the temperatures.

• A) -23 > -14• B) -23 < -14• C) 23 > 14• D) 23 < 14

• . Answer the following questions about temperatures in various places:

• Here are the low temperatures (in Celsius) for one week in Juneau, Alaska:

Arrange them in order from coldest to warmest temperature.

Exit / Closure

• What did you learn about today’s N2K?

• Do you have questions about the process?

Friday: Bell Work

• Study for the test

• Have a piece of paper and sharpened pencil on desk

• Read questions carefully and Good Luck!

Lesson

• Test Day

• Complete test and turn in

• Read quietly until everyone is finished.

Exit / Closure

• What ?s do you have about the test???