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What should you be doing …
Get out your Learning Logs, and answer the following questions: What is a percent? How do you think percent relates to fractions and decimals? When you’ve answered the questions to the best of your ability: Put your Learning Log back in the bin. Collect the sheet for todays lesson from the front of the class. Sit quietly while you wait for further instructions.
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Look at the picture of the partially filled Base 10 Block Plate below, and answer the questions below to the best of your ability. How many squares are there in total on the grid? What is the value of the filled portion of the plate represented as a fraction? What is the value of the filled portion of the plate represented as a decimal? What is the value of the filled portion of the plate represented as a percent?
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Converting a Decimal to a Percent
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Converting a Decimal to a Percent
Move the decimal two places to the right, and add a percent sign. What if there is only a digit in the tenths position? Ex: 0.6 Multiply decimal by 100, and add a percent sign
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Converting a Percent to a Decimal
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Converting a Percent to a Decimal
Take away the percent sign, and move the decimal two places to the left. What if your percent has only on digit? Ex: 8% Take away the percent sign, and divide the percent value by 100.
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Converting a Fraction to a Decimal
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Converting a Fraction to a Decimal
Divide the numerator (top) of your fraction, by the denominator (bottom) of your fraction. Use your calculator for this.
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Converting a Percent to a Fraction
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Converting a Percent to a Fraction
Take away the percent symbol. Make the value of your percent the numerator (top) of the fraction. Make the denominator equal to 100 Why 100?
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You and your group will do your work on chart paper.
The person whose first name is closest to the beginning of the alphabet will come collect a piece of chart paper,4 hundreds grids and a marker. Groups cannot post their chart paper on the wall until each member of the group understands how to complete the conversions, and everyone agrees with the answers they have. Once a group has posted their work, they should be looking around at other groups work, to see their steps and answers.
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Fraction, Decimal, Percent Memory
With the person you sit with, collect a deck of Fraction, Decimal, & Percent Memory Cards. Flip all 30 cards, and then take turns flipping two to find corresponding Fractions, Decimal's & Percents. When all the cards have been matched, the student with the most cards ‘wins’. If there’s time, shuffle the deck and play again.
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Bookwork At your desks, work on the following questions in your text book: Grade 7 Text – Pg 129/130/130 #’s – 6, 8, 11, 13, 14, 15, 16, 18, 19, 22, 25, 28, 29 Grade 8 Text – Pg 128/129 #’s – 5, 6, 6, 7, 9, 11, 13, 15
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