841Thyrza+May

The sum of the numbers in a set of data divided by the number of pieces of data. We also call it "average."

- Add up all the numbers in your data set (sum of all data). - Divide the sum of all data by the number of pieces of data (numbers) you used.

The number in the middle of a set of data arranged in numerical order. When you have two middle numbers their mean is the new median.

- Arrange in Numerical Order (Either in Ascending or Descending Order). - Partner up two data. One data has to be from the front and the other one has to be in the back. - If there are two numbers in the middle, you find the two number's mean.


 * //If there are two middle number//:**



The last partners were 5 and 7 so they are the two middle numbers. Now we have to get their mean.



The number that shows up the most. You can have more than one mode. You can also have no mode.

- Arrange in numerical order either ascending or descending.(OPTIONAL) - Look for a number or numbers that shows up the most in a set of data.



The difference between the largest number and the smallest number in a set of data.

- Arrange in numerical order. (Ascending Order is better) - Find the largest number and the smallest number. - Subtract the smallest number from the largest number.



Chen's scores in miniature golf are given in the table below. Find the mean, median, mode and range of Chen's scores. =**//MEAN://** 98.75= 105 + 105 + 85 + 107 + 95 + 93 + 95 +105 = 790 790 / 8 = **__//98.75 <--mean//__** =**//MEDIAN://** 100= Ascending Order: 85, 93, 95, 95, 105, 105, 105, 107 Partners: 85 and 107 93 and 105 95 and 105 95 and 105 Get the mean of 95 and 105: 105 + 95 = 200 200 / 2 = **//__100 <--median__//** =Mode: //**105**//= Ascending Order: 85, 93, 95, 95, **105**, **105**, **105**, 107 =**//RANGE://** //22//= Ascending Order: __Highest: 107__ 107 - 85 = **22 <-- range**
 * //Write Here://**
 * 105 shows up the most so it is the mode.**
 * 85**, 93, 95, 95, 105, 105, 105, __107__
 * Lowest: 85**

8-41TMTanswers
 * //Comment://** I liked how my daughter taught me this topic. I don't use median, mode and range a lot but it serves as a good reminder to me. I usually use mean (average) so that was pretty easy for me.



A number that is multiplied by itself.

The square root of 4 is 2 because 2 x 2 = 4.

Any square that has the same whole number for all sides. Only whole numbers, no fractions nor a decimal. - 100 is a perfect square because all its sides are equal.

(Without a calculator)


 * 1) Look at the perfect square chart.**

- 16 it the perfect square before 23 and 25 is the perfect square after it. 4 x 4 = 16 <--Previous 5 x 5 = 25<--After
 * 2) Find the perfect squares before and after the number you are trying to solve.**

25 - 16 = 9 <--Denominator
 * 3) Subtract the previous perfect square from the next perfect square and that is the denominator.**

23 - 16 = 7 <--Numerator
 * 4) Subtract the previous perfect square from the number you are trying to find the square root of and that will be the numerator.**

4 x 4 = 16 4 will be the whole number.
 * 5) Find the square root of the previous perfect square by looking at the chart.**

Whole number: 4 Numerator: 7 Denominator: 9 //Fraction: 4 7/9//
 * 6) Put all the fraction parts together.**

//**So the square root of 23 is 4 7/9 or 4.7777777**//



A farm has 7 equal square fields with a total area of 616 areas square. Estimate the dimension of each field using fraction.(Without a calculator) //**Write Here:**//

616 / 7 = 88

=**//WHOLE NUMBER//**= previous perfect square: 81 (9x9) after perfect square: 100 (10x10)
 * So 9 is the whole number!** 88 is 9._ x 9._

=**//DENOMINATOR://**= after - previous = denominator 100 - 81 = 19
 * So 19 is the denominator!**

=**//NUMERATOR://**= number - previous = numerator 88 - 81 = 7
 * So 7 is the numerator!**

=**//PUT THE PARTS TOGETHER://**= Whole number: **9** Numerator: **7** Denominator:**19**


 * //Fraction: 9 7/19//**

8-41TMTanswers
 * //Comment://** I liked how my daughter taught me the steps precisely and step by step. Now I know a different technique of how to solve a square root. Before I usually use a calculator and so now I can solve square roots without needing a calculator.



A fraction where the denominator is 100 with a percent sign. Percent means out of 100. - Numerator divided by the denominator or part divided by total. - Quotient multiply by 100.



Is taking 15% off a given item and then an additional 10% off the reduced price the same as taking 25% off the original price. Why or why not? //**Write Here:**// 10% of $50 = $5 __15% of $50 = $7.50__ Total = $12.50
 * Yes, For example you buy clothes with an original price of $50**

25% of $50 = $12.50

8-41TMTanswers


 * //Comment://** Now I know that taking 15% off a given item and then an additional 10% off the reduced price is not the same as taking 25% off the original price. Now I'm going to be a wiser shopper!



- Fill in the two fractions with the informations you have. - Part goes as the numerator and total goes as the denominator. - Find the relationship of the two numerators and the two denominators. - Find the relationship of the numerator and the denominator of each fraction//**. **//

- Fill the spots. - x is the numerator or the part. - k is the relationship between the numerator and the denominator. - y is the denominator or the total//**. ** Solve the question below using equivalent fractions. To double check you can use the x k y chart.//



What is the missing length on the rectangle.

//**Write Here:**// 12 x 8 = 96 1.6 x X = 96 X = 60

1.6 x 60 = 90

8-41TMTanswers
 * //Comment://** I really like how my daughter explained to me what is equivalent fractions and the xky chart. She then showed me how to use it to solve problem solving questions. I thought my way of answering the question would work but it didn't. Well it's okay at least I learned two different ways to solve that kind of question.



- Label what the part should represent. - Label what the total should represent. - Fill the part and total section. - Simplify to the lowest term. - Multiply the other given number to the corresponding section.

- Use two fractions. - Multiply one numerator to the other fraction's denominator. - Multiply the other numerator to the first denominator.

Solve the question below using ratio table. To double check you can use cross multiplying.

//

Dave interviewed a number of students in his school regarding their favorite ice crea,. Dave claimed that exactly 40% of the 37 students interviewed like vanilla the best. Is it possible to determine whether David's claim is correct? Why or why not?// 40% of 37 = 12 It is possible if you get how many is the other flavor. For example: Chocolate = 25
 * Write Here:**
 * Students** = 37

25 + 12 = 37 37 = 37 If this is the case David's claim is correct.

8-41TMTanswers
 * //Comment://** I liked how she again taught me what ratio table is and showed me how to use it. She didn't have to spend that much time teaching me cross multiplication because I knew what it is and how to use it. I got the question wrong mainly because I didn't quite read the question carefully.

My [|Blogging on Blogger]! My [|Growing Post]! My [|Scribe] [|Post]! My [|Personal Learning Center]! Scribe Post [|Hall of Fame] My class' [|blog site]!

=My Powerpoint Portfolio=

media type="custom" key="33931"

= = =//Overall Comment://= I was very impressed with my daughter's effort to putting together this math portfolio. I was impressed also on how she explained the topic really precisely. Some of the questions were kind of tricky and I got some of them wrong but it is okay at least now I know the correct way to do it.

I guess sometimes kids can be smarter if they put their heart into it! I learned many things from this portfolio and I really liked how she added pictures to her portfolio. It made me understand the topic better. Remember a picture represent a thousand words. Lastly, I liked how she told me to always check my answer!


 * || **Question 1** || **Question 2** || **Question 3** || **Question 4** || **Question 5** ||
 * Question for parent to do || 2/2 || 2/2 || 2/2 || 2/2 || 2/2 ||
 * Answer with explanation || 2/2 || 2/2 || 2/2 || 2/2 || 2/2 ||
 * Parent Notes explaining topic || 2/2 || 2/2 || 2/2 || 2/2 || 2/2 ||
 * Extra work to further explain topic, bubbleshare, pictures etc. || 3/3 || 3/3 || 3/3 || 3/3 || 3/3 ||
 * Extra links to math blog sites || **5/5** ||  ||   || **Total** || **50/50** ||