Math+Blog


 * Welcome to our 5th Grade Math Blog. As you know we will be using a new math program this year, Singapore Math. This blog will help the students review concepts from many of our lessons as well as keep parents up to date on the concepts of study.**

4-3 Using the Factor Tree to Help Find an Equivalent Ratio media type="custom" key="22630958" 4-2-13 Mr. V refreshing your memory on how to simplify an algebraic expression. Think about the popsicle sticks activity you did in class. media type="custom" key="22619630"

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 * 3-4-13**
 * Turning an improper fraction to a mixed number and then back into an improper fraction**
 * Multiplying mixed numbers by a fraction**


 * 1-29-13**
 * Link to improper fraction flash cards which can also be used with our 9-space BINGO cards. The fractions are listed using a slanted line instead of a horizontal line. It was the only way I could enter the information. If using BINGO cards, choose 8 of the following answers to place on your 9-space card. Remember the slanted line has the same meaning as the horizontal line. (1 4/5, 1 5/7, 1 7/9, 2 3/4, 9 1/2, 5 3/8, 3, 6 3/4, 8 2/5, 2 5/7, 8, 2 1/3,**
 * 5 3/5, 3 1/11, 5 5/8, 7 1/2, 4 1/4)**
 * @http://www.quia.com/jg/2521994.html**


 * Link to adding and subtracting fractions with unlike denominators flash cards which can also be used with our 9-space BINGO cards. If using the BINGO cards, choose 8 of the following answers to place on your 9-space BINGO card. Choose 8 of the following answers to place on your 9-space BINGO card. ( 1 7/15, 11/12, 2/15, 5/6, 5/28, 7/20, 1/7, 1/5, 1 1/14, 1 1/18, 3/10, 2/9)**
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 * Download BINGO card. ( The traditional card is also in this document.)**

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 * 1-22-13 Brownie Math- Equivalent Fractions**
 * Use with 1-22-13 Homework**

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 * 12-4-12 Order of Operations Part 1**

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 * 11-27-12 Review for double digit divisor.**

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 * 11-26-12**
 * Today we began studying long division using the Singapore math method involving mental math. We divided up to a 4-digit dividend by a 1-digit divisor. We began using this method as a stepping stone toward the more traditional algorithm. It is a process that will help the children understand the reasoning behind the traditional method, as well as give them another option on how to solve a long division problem. The video below is a review of what we did in class today. Please keep working on the multiplication and division facts.**

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 * 10-25-12**
 * Review on how to find the missing factors. The answers to numbers one and two are demonstrated.**
 * Answers to numbers 3 through 10. Please check your answers.**
 * 3=40 #4=500 #5=700 #6= 900**
 * 7= 1,520 #8=900 #9=60 #10=800**

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 * 10-21-12**
 * The following are videos to help you understand and explain bar modeling using division.**
 * Answer to numbers 2a and 2b in homework packet.**

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 * The following video demonstrates how to model #s 3a through 5b.**

media type="custom" key="21038218" Using front- end estimation with adjustment to find the difference media type="custom" key="21038256"
 * 10-4-12**
 * Using rounding then estimating and** **front end estimation with adjustment**
 * to find a sum/**

**9-5-12 Review of today's place value lesson: expanded form, standard form and word form.**
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9-5-12
Click this link to find out the ball park seating capacity of each Major League Ballpark. MLB Ball Parks


 * 9-10-12 "How to" bar model simple math problems.**


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**9-11-2012 Why There Are No More Lumberjacks**
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 * This is an amazing video. Now let's put our math to work! **
 * Read all the questions first. What knowledge do you need to know in order to answer all the questions? **


 * 1. Use a stop watch to calculate how long it takes to cut down, strip the bark and branches, and cut the tree into sections using a wood forest machine.**
 * 2. How long does it take to prepare one tree?**
 * 3. How many trees can be prepared in one minute? One hour? One 8-hour work day? One year, assuming someone operates this machine every day of the year.**
 * 4. Are these exact numbers you are calculating? Explain your answer.**
 * 5. What implications does this wood forest machine have on society? Wow! There are so many different answers to this. With your group write a list of answers. You will record your work and post it below.**
 * 6. What type of research may this inspire you to perform? Well, what are you waiting for? Let's get cracking on this!**