N7.1 Demonstrate an understanding of division through the development and application of divisibility strategies for 2, 3, 4, 5, 6, 8, 9, and 10, and through an analysis of division involving zero.

 

N8.1 Demonstrate understanding of the square and principle square root of whole numbers concretely or pictorially and symbolically.

Here are some sort videos that may help you.

Perfect Squares and Square Roots

Writing: Create a Profile

See Crossroads, page 16, for more help.

Assignment:

  • Choose a person who interests you.
  •  Make a list of questions about this person.
  • Do research on this person.
  • Write a biographical profile about this person (see “An Olympic Moment,” p. 12-16 or “Courage in Orbit,” p. 56-59)

Make Sure to Include:

  •  An introduction to the person (name, age, other background information).
  •  The reasons why you were interested in this person.
  • A story that reveals the person’s admirable qualities.
  • The answers to the questions you researched.

Helpful Websites

5.6 Adding with Mixed Numbers

To add mixed numbers, follow these steps:

  • Change the fractions to equivalent fractions with common denominators.
  • Add the fractions.
  • Then add the whole numbers.

 [kml_flashembed movie="http://www.youtube.com/v/XnKXYEmUgJ0" width="425" height="350" wmode="transparent" /]

5.7 Subtracting with Mixed Numbers

To subtract mixed numbers follow these steps:

  • Change the fractions to equivalent fractions with common denominators.
  • Subtract the fractions.
  • Then subtract the whole numbers

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Note: There will be a quiz on Friday.

Today we will be looking at relating fractions, decimals and percent. What does that mean? Check out the videos below to learn more.

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Homework

  • 3.8 Relating Fractions, Decimals and Percent Questions 1-9
  • Get Quiz Signed: Fractions to Decimals: Comparing and Ordering Fractions and Decimals

Homework

  • Study Decimal Practice Test (Test on Thursday)
  • 3.1 Fractions to Decimals (Practice Sheet 1-5)
  • Math Dictionary
    • Terminating Decimals
    • Repeating Decimals

Fractions to Decimals Song

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If you forget the order of operations the video below may help you. I have always used BEDMAS to help me remember this but PEDMAS works as well.

[kml_flashembed movie="http://www.youtube.com/v/2SYA60zH7zA" width="425" height="350" wmode="transparent" /]

Homework

3.6 Order of Operations with Decimals

  • Question 5
  • Order of Operation Sheet

Ioana, Aida and Norman got different answers for this problem: 12 X (4.8 / 0.3) – 3.64 X 3.5. Ioana’s answer was 39.12, Aida’s answer was 179.26, and Norman’s answer was 659.26.

  • Which student had the correct answer? How do you know?
  • Show and explain how the other two students got their answers. Where did they go wrong?

Make sure to study for our upcoming test. It will include:

  • Adding/Subtracting Decimals
  • Multiplying Decimals
  • Dividing Decimals
  • Order of Operations wit Decimals
  • Word Problems with Decimals
  • Estimation with Decimals

3.5 Dividing Decimals Homework

  • Get Quizzes Signed

  • Dividing Decimals Sheet

  • Question 10

Alex finds a remnant of landscaping fabric at a garden store. The fabric is the standard width, with length 9.88m. Alex needs fourteen 0.8m pieces for a garden patio.

  • How many 0.8m pieces can Alex cut from the remnant? What assumptions did you make?

  • Will Alex have all the fabric he needs? Why or why not?

  • If your answer to part b is no, how much more fabric does Alex need?

  • Alex redesigns his patio so that he needs fourteen 0.7m pieces of fabric. Will the remnant be enough fabric? Explain.

To multiply decimal numbers:

1. Multiply the numbers just as if they were whole numbers.

  • Line up the numbers on the right – do not align the decimal points.
  • Starting on the right, multiply each digit in the top number by each digit in the bottom number, just as with whole numbers.
  • Add the products.

2. Place the decimal point in the answer by starting at the right and moving a number of places equal to the sum of the decimal places in both numbers multiplied.

Try these for homework (Make sure to post your answers):

A. 3.23 X 1.7= B. 4.29 X 2.3=

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