Area videos

Introduction to area and unit squares:
Rectangle area as product of dimensions same as counting unit squares:

Here are two videos from Khan Academy discussing perimeter.  We will be watching them in class on Friday November 22.




Introduction to perimeter:
Perimeter of a shape:

Prime factorization

Here is a video we will be watching Tuesday.  It discusses the idea of prime factorization or the process of breaking a number down to it prime number factors.  We will only be viewing the first 3 minutes and 34 seconds.  We do not get into exponential notation in 5th grade.


Prime Factorization: Prime Factorization

Prime number assignment- Due Monday October 28

As we have discussed, in class, you will need to memorize the first 25 prime numbers between
1 and 100 by Monday October 28.

If you need another copy of the first 25 prime numbers here is the list:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 

61, 67, 71, 73, 79, 83, 87, 89, 97

Prime and Composite Numbers videos

Prime Numbers: Identifying prime numbers


Recognizing Prime Numbers: Recognizing Prime Numbers

Patterns

Tomorrow we will be beginning our study of numerical patterns and number relationships.  Here are a couple of videos that will help us along the way.

Patterns in Sequences 1: Patterns in Sequences 1



Multiplying by multiples of 10:

Math test updates

I just wanted to let everyone know about the tests we have coming up in the next couple of weeks so you know what to expect.

On Wednesday October 2nd, We will have Fractions Test 2

On the following Tuesday, October 8th, we will have Reporting Category 1 Test.

This will be a cumulative test covering everything we have done in class up to this point in the year.  If there are any skills you are still unsure of or if you have any questions about anything we have do so far this year, come in and let us know so we can be sure to work on it together.

Skills/Topics covered on the Reporting Category 1 Test

Reading and writing whole numbers and decimals
Comparing and ordering whole numbers and decimals
Adding and subtracting whole numbers and decimals
Rounding whole numbers and decimals
Comparing and ordering fractions
Finding equivalent fractions
Simplifying fractions (reducing fractions)
Converting mixed numbers to improper fractions
Converting improper fractions to mixed numbers
Adding and subtracting fractions with same denominators
Converting fractions to decimals

Mixed Numbers and Improper Fractions

Happy Friday!

This weekend I have an assignment I would like for you to complete.  It will need to be completed by Tuesday September 24.  Watch the video below teaching you about mixed numbers and improper fractions. When you have viewed the video see instructions below for a short exercise.


Mixed numbers and improper fractions: Converting mixed numbers to improper fractions and improper fractions to mixed numbers

Exercise
Go to the Khan Academy website. (There is a link on the top right hand side of the page.)

Find the search box just below the large purple area.  Enter the following "Converting mixed numbers and improper fractions".

When the search results appear, scroll down until you see the "SKILLS" section.  Click on "Converting mixed numbers and improper fractions."

Solve the problems until you get 5 correct in a row. You may watch the video as many times as you need.

 Be sure to bring me your scratch paper you did your work on so I can give you credit.

IMPORTANT!!- In this exercise you will need to write your fractions in a slightly different format than you are used to.  You will need to use a "slash" / for your fraction bar instead of the horizontal line you normally use.  For example, the fraction one half will look like 1/2.  One and one half will be 1 1/2.

Introduction to Fractions

Starting next week, we will be beginning our unit on Fractions.  In preparation for this unit, I would like you to view these three videos.  We will be using the concepts from these videos to do our station activities.

As always, if you do not have access to the internet at home, you can come in before school on Monday morning and use our computers.  Also, the Franklin County library has computers available for use with parental permission.


Introduction to fractions:
Numerator and Denominator of a Fraction: Numerator and Denominator of a Fraction
Equivalent fractions: Introduces the concept of equivalent fractions

Rounding Decimals video

Rounding Decimals: Rounding Decimals

Fun with the Rounding Rap- Mr. Baxter's Math classes only

Ok, so we are going to have some fun with the Rounding Rap this year.

Some of you already know the Rounding Rap, some of you don't.......YET.

Here it is if you don't know it or might need a reminder.

Find your place value,
Circle that digit,
Move to the right and underline.....Get it?
Zero through four the circle stays the same,
five through nine add one to the game.
Now flex your muscles like a hero,
Numbers to the right turn to Zero.
All the other numbers stay the same,
Now you're a winner in the rounding game.

These are all the steps to rounding any number whether it is a whole number or a decimal.


Now here is the FUN part. ( This part is optional and is not required, but there will be a reward)

The first thing I want you to do is to go to the Franklin County Library, on the square, and ask for my wife, Mrs. Baxter.  Tell her you are in my math class and tell her you want to sing the Rounding Rap for her.

If you sing the Rounding Rap to her, she will let me know you have done it and I will give you a Homework Pass good for Math class.  You can go in any week day before 5:00 pm and sing it to her or catch her at an event like Country Fest or Trick or Treat on the square.

More fun with the Rounding Rap- I am also looking for volunteers to star in a Rounding Rap music video.

IF YOU ARE INTERESTED IN EITHER OF THESE ASSIGNMENTS COME SEE ME AND LET ME KNOW.

Adding and subtracting decimals with NLVM

Here is a great tool for using base-10 blocks for adding and subtracting decimals. It works with a computer and mouse, or any touch screen device.

National Library of Virtual Manipulatives

Click on the 5th link down the page "Base Blocks Decimals"

The program will create practice problems for you, or you can click on "Create problem" to make your own.

You can also choose how many decimal places you would like to work with.(we work with up to three)

Adding and subtracting decimals videos

GET A HOMEWORK PASS

Here are a couple of videos we will be viewing next week in class.  We are offering a homework pass, good for math class, to anyone who watches these videos before Monday and writes a brief summary of what you learned. Just give us a couple of sentences telling us what the videos were about and what you learned.

If you do not have access to the internet and would like to watch the videos here at school, come to my classroom starting at 7:30 on Monday morning and you may use one of my computers.

  Adding decimals example 2:
Adding decimals example 3: Adding Decimals
Subtracting Decimals: Subtracting Decimals

Place value with whole numbers review

Let's continue our review of place value, now with whole numbers.

READ AND WRITE WHOLE NUMBERS:

1)  Circle the periods. A period is a set of three numbers usually separated by commas.
      for example in the number 345, 982, 615 there are three periods.  The digits 3, 4, and 5 make up the millions period, the digits 9,8, and 2 make up the thousands period and the ones period or units period is made up of the digits 6, 1 and 5.

2) Label the commas.  The first comma is "named" Thousand, the second is Million and the third is Billion

3) Start on the left (the largest place) and write the name of the first circled 1,2 or 3 digit number.
The period farthest to the left will not always have 3 digits.  Subsequent periods will always be made up of 3 digits

4) Now write down the name of the corresponding comma. (Don't forget to add a comma in written form)

5) Repeat the steps above for all other periods



FIND WHICH PLACE A DIGIT IS IN 

In which place is the 5 in the number 657,890?

1) Rewrite the number

2) Put a 1 under the number you are looking for In this case, you would put a 1 under the 5 digit.

3) Put zeros under all digits to the right of the 1  Here you would have zeros under the 7,8,9 and 0.
     you now have 4 zeros

4) Add the necessary commas.  you now have 10,000

5) The name of the number you have created is now the name of the place you are looking for.  In this case, the 5 is in the ten thousands place.

REMEMBER, when in doubt, label, label, label.  If you have labeled everything, you have something you can look back on if you get confused.  Most mistakes are due to a lack of attention to details.

Take your time, do good work and we'll see you on the bragger board!!

Place value with decimals review

I want to take a few minutes to review some of the strategies we have explored this week in our unit on decimals.


First, let's talk about reading a decimal:

1) Label the numbers and your decimal

2) Put a 1 under the decimal point and put zeros under all digits to the right of the decimal

3) Add the letters THS to the end of the last zero

4) Read the number starting at the top, then read the bottom line.


This strategy can also be used to check your answer when changing from word form to standard form.


Next, let's talk about comparing and ordering decimals:

1) Line up your decimal points (stack 'em up)

2) Compare starting all the way to the left ( the highest place)

3) Pay attention to what you are being asked for ( greatest to least or least to greatest)

The only difference between comparing and ordering decimals is that comparing only deals with two numbers while ordering deals with more than two.

In my next post, I will review the strategies for working with whole numbers in preparation for our unit test on Friday.

Place value with decimals

This week we will be continuing our place value unit by adding decimal numbers.  As with whole numbers, we will be focusing on reading, writing, comparing and ordering decimal numbers through the thousandths place.  We will complete our place value unit this week and will have our unit test on Friday September 6th.  Don't forget to keep working on your multiplication tables too. Keep up the great work students!

Here is a great video on expanded form or expanded notation


Place Value 3: Place Value 3

Quiz announcement

We will be having a quiz over place value with whole numbers on Friday, August 30th.

Don't forget to use your notes pages on your homework this week and bring them to class too.  If you know the steps on those notes pages, you will be in great shape on Friday!

Welcome to the 5th grade !!

Hi, My name is Mr. Baxter and I teach 5th grade math along with Mrs. West.  We would like to welcome you to our classes and let you know a little about what you can expect.

One of the most important things YOU can do to make sure you are successful is to learn your multiplication math facts if you do not already know them.  Almost everything we do this year will be much easier if you know those facts.  If you want to work on learning them, or just practice to get better there is a great website you will hear us talk about.

Here is a link to Math Magician
http://www.oswego.org/ocsd-web/games/mathmagician/cathymath.html
Give it a try and let me know what you think.  


Another website we will be using a lot in class is  Khan Academy
www.Khanacademy.com

Please feel free to visit this site at any time as it has great videos you can watch as many times as you want.  We will explain how to easily navigate the site and find what you need quickly.


We have a lot of great things planned for this year and look forward to seeing you!

PS- Check back often as this is where we will post announcements and updates and other great links.