Calculators Allowed for #5-8...2012/01/01 · 5. Find the mean 6.Find the median 7. Find the mode 8. Find the range Warm Up Regrouping Calculators Allowed for #5-8 2 Solve. Warm Up
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Solve.1. 2 1/4 3/4 = 2. 5 2/11 2 7/11 =
3. 4 2/3 1 5/6 = 4. 12 3/8 10 1/9 =
The following pounds of food were collected each day during an eight day period.
32, 15, 35, 36, 46, 46, 32, and 46
5. Find the mean 6. Find the median
7. Find the mode 8. Find the range
Warm UpRegrouping
Calculators Allowed for #5-8
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Solve. Warm Up1. 12 1/2 71/3 =
2. 8 1/4 3 5/6 =
The following 10 point quiz scores were recorded for Sandy: 6, 7, 9, 9, 10, 8, 7
3. Find the mean 4. Find the median
5. Find the mode 6. Find the range
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Solve. 1. 15 3/4 81/6 = 2. 9 1/6 2 5/9 =
3. Write 0.36 as a fraction
A cab company advertises that the average fare is $14.00. The fares during one day were: $10, $11, $12, $12, $13, $14, $30, $30, $30, $44, and $444. Find the mean 5.Find the median
6. Find the mode 7. Find the range
8. Is their ad true?
Why would they use this measure of central tendency in their advertisement?
Warm Up
See below after answers are given.
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Content Objective:• WWBAT use calculators to raise numbers to exponents, put numbers in scientific notation, and change the sign of integers.
Calculator Activity
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Scientific Notation with calculators:
E EE or exp
change modes (to have all numbers appear in scientific notation.)
Exponents with calculators:
^ exp xy or yx
Positive and Negative Numbers:
+/ or () or +
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To create a data list:1.) Push STAT2.) Highlight 1. Edit and push Enter
or Push the number 1
3.)To enter the data into the list table, move down into the table and put in a number and press enter, continue until all values are in.4.) When done entering data push 2nd and Mode (to quit)
Clearing entire lists or individual pieces of data:
Clearing an Entire List:Highlight the List Name (like L1) and push CLEAR and Enter. This will clear all the data from the list.
Do NOT use Del (delete) on the List Name the L1 and it's data will
disappear.
Clearing a Single Piece of DataIf you make a mistake and need to clear a single piece of data, highlight the value and press Del (delete).
Now let's enter these:List1: 5, 3, 6, 3, 8, 0, 0, 9, 7, 2
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Next we will find the MeanTo get to the statistical operations 1.)2nd, Stats (for the List option)2.)Use the arrow keys to highlight MATH3.)Arrow down to 3. Mean and push Enter
or Just push 3
4.)On the screen you should see: mean( push 2nd, Stats (for the List option) and select the list number you want
or press 2nd and 1, 2, 3, 4, 5, or 6 (for the L# option)
Other statistical functions are available to like:median, maximum, and minimum
Notice that there is no mode, you can order your values and find the mode yourself.
To Order the values:1. Push 2nd, Stats2. Arrow over to Ops3. Highlight 1. SortA( and push enter
orpush 1
4. Enter the list # by pushing 2nd Stats (for the Lists) or
2nd 1, 2, 3, 4, 5 ,6
List2: 11, 32, 8, 22, 60, 23, 32, 35, 14, 7, 27
List3: 20, 28, 29, 28, 20, 27, 25, 24, 22, 20, 28, 22, 22, 21
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Content Objective:WWBAT use calculators to:
raise numbers to exponents, put numbers in scientific notation or standard form change the sign of integers.enter data into lists and calculate the statistics based on the data lists
Calculator Activity
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Content Objective:• WWBAT to find the least common multiple or
LCM.• WWBAT compare fractions.Language Objective:• WWBAT orally justify why one fraction is
greater than another.
Sect. 5.1
Skill Assignment 5.1 pg 229 #69, 1042 even, 43, 4460 even skip 52Due_____________
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Page 226
MultipleA multiple of a number is the product of that number and any nonzero whole number (which is a natural number.)
4 x 1 = 44 x 2 = 84 x 3 = 12
multiples of 4
Least Common Multiple (LCM)
The smallest multiple that two or more numbers share or have in common.
12: 12, 24, 36, 48
8: 8, 16, 24, 32, 40, 48
least common multiple (LCM)
White Board Time
Vocab Book
A row or column in a multiplication table.
Vocab Book
Finding common denominators for fractions
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White Board Time
White Board Time
page 226-227
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Page 228
Least (or lowest) common denominator (LCD)ExampleDescription
Notes and Tips:
LCD is the smallest denominator that both fractions can share (like the least common multiple)
5/12 and 3/88 and 12 share 24 as a multipleso 24 is the least common denominator. 5 5 2 10 12 12 2 243 3 3 9 8 8 3 24
=
=
=
=
Now you can determine which fraction is greater!When fractions have the same denominator the one with the largest numerator is the greater fraction.
Talk to your partner!
Rock-Paper-Scissors winner explains a and other explains b (if you are a trio the third explains c).
Example
Book
(divisor)
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Talk to your partner!
Rock-Paper-Scissors winner explains a and other explains b (if you are a trio the third explains c).
a
b
c
page 227
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White Board Time
page 228
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Page 229
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Exit Problem1. Get the exit ticket.2. Write down your name and hour.3. Write down the problem, show your work and circle your answer.4. Hand it to me as you leave the room.
17 2740 60
Problem
Compare the fractions to determine which is larger. Show the work you did to make your determination.
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Content Objective:WWBAT to find the least common multiple or LCM.WWBAT compare fractions.
Language Objective:WWBAT orally justify why one fraction is greater than another.
Sect. 5.1
Assignment 5.1 pg 229 #69, 1042 even, 43, 4460 even skip 52Due_____________
Did we meet our objectives?
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Assignment 5.1 pg 229 #69, 1042 even, 43, 4460 even skip 52
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Content Objective:• WWBAT write rational numbers as decimals• WWBAT write terminating and repeating decimals as fractions.Language Objective:• WWBAT describe how to order fractions and decimals from least to greatest.
Sect. 5.2
Skill
Assignment 5.2 pg 234 #838 even, 39, & 4046 evenDue_____________
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terminating decimal (a decimal that has an end)
When the division ends with a remainder of zero the quotient is called a terminating decimal.
4/5 = 5 4
Page 231
White Board Time
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page 232
Repeating DecimalA number that repeats the same pattern of digits after the decimal forever.
4/9 = 0.4444... = 0.45 5/99= 5.0505... = 5.054/7= 0.571428571428... = 0.571428
Reminder: you can not use a repeating bar on the left side of the decimal.
White Board Time
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Rock-Paper-Scissors winner explains a and other explains b. If you are part of a trio the third person explains c.
Page 232-233
Talk to your partner!
White Board Time
B. Order 0.5, 0.6, 3/10, & 4/5 from least to greatest.
C. Order 0.35, 0.4, 3/4, & 5/7 from least to greatest.
A.
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White Board Time
ExampleDescription
Notes and Tips:
Changing a repeated decimal to a fraction.
1. Set the decimal = to a variable. 2. Mult. both sides of the equation by 10 to the power of a number that would line like digits up. 3. Subtract the 1st equation from the second. 4. Divide both sides by the coefficient.
0.37373737... x = 0.373737... 100x = 100(0.3737373..)
100x = 37.373737... x = 0.373737... 99x = 37
x = 37/99
Let's look at a similar problem that has an new level of difficulty: Change 8.245 into a fraction
Page 233
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Exit Problem1. Get the exit ticket.2. Write down your name and hour.3. Write down the problem, show your work and circle your answer.4. Hand it to me as you leave the room.
Problem
Write the following decimal as a fraction:
4.32
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Page 234
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Sect. 5.2
Assignment 5.2 pg 234 #838 even, 39, & 4046 evenDue_____________
Content Objective:WWBAT write rational numbers as decimals.WWBAT write terminating and repeating decimals as fractions.
Language Objective:WWBAT describe how to order fractions and decimals from least to greatest.
Did we meet our objectives?
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