Archive for January, 2007

Jan 31 2007

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Math 7/8 – More Parallel Lines

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Warm-up:

Warm-up #9:

  1. Solve the following equation for n.

2n + 35 = 86

2. Solve the following if d = -5 and e = 2

3d (5 + 10e) – 16

a.       -391

b.       -135

c.       -71

d.       -6

Classwork:

  • You (and your group) completed the problems from the Pre-Algebra book
  • We will check the problems tomorrow…..if you didn’t finish in class, then you should’ve checked out a book
  • We didn’t get as far as I hoped, so the quiz is pushed to Friday instead of tomorrow

Homework: Finish pages 564-566 #6-43 in the Pre-Algebra book (if you didn’t finish in class today)

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Jan 31 2007

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1/31: Math 7 – More Dilations

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Warm-up:

Warm-up #9:

  1. Solve the following equation for n.

2n + 35 = 86

2. Solve the following if d = -5 and e = 2

3d (5 + 10e) – 16

a.       -391

b.       -135

c.       -71

d.       -6

Classwork:

  • Homework check
  • We briefly reviewed dilations, and you received two worksheets to complete…..you had almost all class period, and whatever was not completed in class should be completed for homework
  • Remember, a dilation either enlarges or reduces a figure. If the given scale factor is less than 1, the figure will be reduced, if the scale factor is greater than 1, the figure will be enlarged, and if the scale factor equals 1, the shape will remain the same size.
  • When you’re given a scale factor, you multiply all the numbers by the scale factor to get the new dimensions of the dilated figure.
  • If you are given two shapes with dimensions, then you need to figure out what the first set of dimensions is multiplied by in order to create the second set of dimensions, and that answer is your scale factor.

Homework: Finish both sheets both sides…..you had a lot of class time to work on this, so you should’ve had a good portion done before you left school today!

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Jan 30 2007

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Math 7/8 – More types of angles

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Warm-up:

You were given a few minutes to complete the mean portion of yesterday’s warm-up. Tomorrow will be warm-up #9, so we are going to be collecting them this week so make sure you have all 10 completed.

Classwork:

  • Homework check
  • We went through some examples on the board from your worksheet
  • You (and your group) started working on pages 564-566

Homework: None…..we’re going to be finish today’s in class assignment tomorrow in class.

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Jan 30 2007

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1/30: Math 7 – Dilations

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Warm-up:

You were to finish the mean from yesterday’s warm-up if you didn’t have it complete as of yet. Tomorrow will be warm-up #9, and #10 will be either Thursday of Friday so make sure all 10 are done on your sheet.

Classwork:

  • Checked homework
  • We discussed dilations…..you recieved a sheet with an example and some notes (it should be in your notes section)
  • We did a dilation by a scale factor of 2 and by a scale factor of 1/2
  • You had a few minutes to work on homework

Homework: Complete the worksheet from class (it was only 2 problems….one enlargement and one reduction)

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Jan 29 2007

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Math 7/8 – Complementary Angles

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Warm-up:

Warm-up #8:

The following list shows the scores that Ms. Green’s students received on a math test.

85, 88, 79, 99, 92, 81, 66, 77, 68, 90, 99,

79, 87, 89, 86, 100, 74, 95, 87, 78, 96

1.                    What is the median test score?

2.                   What is the mode of the test scores?

3.                   To the nearest tenth, what is the mean test score?

Classwork:

  • You worked on the warm-up up for some time, and I told you that you could check your answers with a calculator after you had the calculations on your warm-up sheet
  • We checked homework (you checked your own…..I took a completion grade today)
  • We reviewed the types of angles you learned last week when we read pages 561-563 in the pre-algebra book, and you also learned about complementary angles (when two angles add up to 90 degrees)
  • We did some examples from the book
  • You received your worksheet, but not too much time remained, so you’ll have to complete it for homework

Homework: Complete worksheet 11-3 from the pre-algebra book

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Jan 29 2007

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1/29: Math 7 – Proportions

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Warm-up:

Warm-up #8:

The following list shows the scores that Ms. Green’s students received on a math test.

85, 88, 79, 99, 92, 81, 66, 77, 68, 90, 99,

79, 87, 89, 86, 100, 74, 95, 87, 78, 96

1.                    What is the median test score?

2.                   What is the mode of the test scores?

3.                   To the nearest tenth, what is the mean test score?

Classwork:

  • Worked on warm-up for quite a long time…..there are many numbers (21 to be exact) in the above problem, so it took some time. I’ll give you a little more time to work on the mean tomorrow and to check with your group members
  • We checked homework (I took a completion grade, so you checked your own paper, and you should have written in the correct answers)
  • We discussed proportions, and how if two ratios are equal, then they form a proportion. We looked at a few different ways we can tell if two ratios form proportions or not.
  • You had some time to continue working on tonight’s homework with your group

Homework: Finish the Proportions Worksheet

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Jan 26 2007

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Math 7/8 – Angles

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Warm-up:

Warm-up #7:

1.                    The seventh grade band is planning a celebration. There will be 172 people at the party. If each table holds 6 people, how many tables will be needed?

    2.     Find the value of 7 + 4 ÷ 2 – 52 × 3.

A. 66

B. – 21

C. – 66

D. – 57

Classwork:

  • You received your geometric constructions quiz back today….most of you did an excellent job
  • We discussed how if a transversal cuts two parallel lines, many congruent angles are formed….we used the activity we did yesterday to recall some congruent angles
  • You wrote down the 5 types of angles from the book (took some short notes), then we worked a few problems from the book
  • You had about 10 minutes to start your homework sheet

Homework: Complete worksheet 5-1

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Jan 26 2007

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1/26: Math 7 – Ratios

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Warm-up:

Warm-up #7:

1.                    The seventh grade band is planning a celebration. There will be 172 people at the party. If each table holds 6 people, how many tables will be needed?

    2.     Find the value of 7 + 4 ÷ 2 – 52 × 3.

A. 66

B. – 21

C. – 66

D. – 57

Classwork:

  • Periods 3/4 & 7/8, you received your transformation quizzes back today (period 5, remember Mrs. Coley has yours, so I’ll get them as soon as I can)
  • We reviewed ratios (which you should have had already) and we learned how to write them three different way
  • We worked some of the problems on your worksheet, so you knew what your answers should resemble.

Homework: Finish both sides of the worksheet (you had 20-30 minutes in class to get started…..period 7/8 had a little less due to the fire drill)

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Jan 25 2007

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Math 7/8 – Parallel Lines & Transversals

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Warm-up:

Warm-Up #6

1. Derek earns $212.00 this week. When he gets his check, he finds his employer has deducted 21% for taxes and insurance. How much is his take-home pay?

A)                 $ 44.52

B)                  $ 167.48

C)                  $ 191.00

D)                 $ 212.00

2. Which of the following is made from 2 rays?

A)                 point

B)                  line

C)                  line segment

D)                 angle

Classwork:

  • You complete the mini-lab from the green textbook addressing parallel lines and transversals…..you measures and drew conclusions about which angles were congruent and how the angles were related to one another in regards to the parallel lines and transversals.
  • We read pages 188-189 in the green book, and you learned about terms such as alternate interior angles, alternate exterior angles, and corresponding angles.

Homework: NONE, but expect some tomorrow after we we learn the rest of the material in this section (vertical angles and supplementary angles)

Download parallel_lines_and_transversals.doc

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Jan 25 2007

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Math 7/8 – Parallel Lines & Transversals

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Warm-up:

Warm-Up #6

1. Derek earns $212.00 this week. When he gets his check, he finds his employer has deducted 21% for taxes and insurance. How much is his take-home pay?

A)                 $ 44.52

B)                  $ 167.48

C)                  $ 191.00

D)                 $ 212.00

2. Which of the following is made from 2 rays?

A)                 point

B)                  line

C)                  line segment

D)                 angle

Classwork:

  • You complete the mini-lab from the green textbook addressing parallel lines and transversals…..you measures and drew conclusions about which angles were congruent and how the angles were related to one another in regards to the parallel lines and transversals.
  • We read pages 188-189 in the green book, and you learned about terms such as alternate interior angles, alternate exterior angles, and corresponding angles.

Homework: NONE, but expect some tomorrow after we we learn the rest of the material in this section (vertical angles and supplementary angles)

Download parallel_lines_and_transversals.doc

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