M A TH M A T T E RS
Fifth Grade 2014-2015 First Nine Weeks Volume 4, Issue 1
Math Resources and Ideas for Families During these nine weeks, fifth graders are learning to:
Read and write decimals to the thousandths place using words, numerals, and expanded form. For example, if a fifth grader saw 45.567 she would be able to write it as, “Forty-five and five hundred sixtyseven thousandths.” Expanded form for this number would be (4 x 10) + (5 x 1) + (5 x 1/10) + (6 x 1/100) + (7 x 1/1000).
Multiply a multi-digit whole number using the standard algorithm. Fifth graders will learn to multiply using the traditional method.
Divide a 4-digit whole number by a 2-digit whole number using different strategies. Fifth graders will learn different strategies for solving division problems. However, the traditional long division strategy will not be taught until sixth grade. Please see “Division Strategies” for more information.
Add and subtract fractions with unlike denominators by creating equivalent fractions with like denominators. See “Adding and Subtracting Fractions” for more information.
Solve addition and subtraction word problems containing fractions by using visual models or equations and with benchmark fractions. For example, Emily buys 1/3 lb. of turkey at the store. She already has 5/8 lb. of turkey at home. How many pounds of turkey does she have?
Use benchmark fractions to estimate and assess the reasonableness of answers. For example, if a child is adding ¼ + ½ and comes up with 2/6, he should realize the answer does not make sense. Fifth graders should recognize that 3/6 is equal to 1/2. Therefore, because he was adding 1/2 to 1/4 the answer should be at least larger than 3/6.
Measure volume in cubic inches, cubic centimeters, and cubic feet. Students will use models, drawings, and rulers to measure the volume of right rectangular prisms.
8/18/2014
Welcome!
This newsletter will be sent home to families every nine weeks. It will provide information on what your child is learning in math, activities you can do at home to reinforce the content, and suggestions for books and resources you can use to help your child with math.
Division Strategies
Fifth graders will use a variety of strategies to solve division problems. Remember long division will be taught in the sixth grade. The strategy being used may depend on the numbers in the problem. Using Place Value—If a student is solving 5,400 60, she may use place value as a strategy. She should recognize that a ten can be divided out of each problem. This turns 5,400 60 into 540 6, which is a much easier problem to solve because she should see that six will go into fifty-four 9 times and since it is 540, six will go in 90 times. Using multiplication to solve a division problem—Students can use the relationship between division and multiplication to solve problems. A student can look at 288 12 = ? as 12 x ? = 288. By using multiplication facts they know, they can solve the division problem. Visit the link below to see an example of this strategy. http://www.youtube.com/watch?v=Nrii6UnWbM Using arrays to solve division problems— Students can use an array to help them solve division problems by providing them with a visual representation. Visit the link below to see an example of this strategy. http://www.youtube.com/watch?v=S4H0JWL1DI
Math Resources and Ideas for Families
Check Out These Books!
Activities to Try at Home
Visit the Louisville Free Public Library to check out these books which connect to math content students are learning this month. Dazzling Division by Lynette Long Multiplying Menace: The Revenge of Rumpelstiltskin by Pam Calvert The Great Divide by Suzanne Slade Division Made Easy by Rebecca Wingard-Nelson Decimals and Fractions by Rebecca Wingard-Nelson Fractions, Decimals, and Percents by David Adler Fractions and Decimals by Lucille Caron Decimals by Brian J. Knapp
Online Activities to Try
Practice multiplication and division facts at home using flashcards. Flashcards can be made at home using index cards or can be bought at stores like The Dollar Tree and Wal-Mart for a reasonable price. Incorporate division problems into real-life and discuss how to interpret the remainder. For example, if there are 25 cookies that need to be shared between 4 people, how many will each get? What do we do with the leftover cookie? Practice multiplying multi-digit numbers using a deck of cards. Remove all of the face cards and tens. Aces will count as one. Each player selects 5 cards and sets up a 3-digit by 2-digit multiplication problem trying to create the greatest product. Each player solves their equation and the person with the greatest product wins a point. The first person to five points wins! If you need to make the game more difficult, draw 6 cards to make a 3-digit by 3digit problem. If you need to make it easier, select 4 cards and do a 2-digit by 2-digit problem.
http://www.sheppardsoftware.com/mathgames/ma ke24_level_one/make24AS2_level1.htm Use the four operations and parentheses to make equations that equal 24.
http://www.sheppardsoftware.com/mathgames/ma kex/makeXAS2_level1.htm Challenge yourself as you make different numbers using multiplication, division, addition, subtraction, and parentheses.
http://www.abcya.com/math_man.htm Practice multiplication and division facts with this Pac-Man™ like game.
http://www.sheppardsoftware.com/mathgames/ari thmetic/arithmetic.htm Practice creating equations with this fun game.
Adding and Subtracting Fractions with Unlike Denominators
http://www.arcademicskillbuilders.com/games/de molition/demolition.html Practice division facts with this car demolition game.
3/8 + 2/4=?
http://www.math-play.com/Order-of-OperationsMillionaire/order-of-operations-millionaire.html Practice evaluating expressions with this fun game.
Step 1: Students will need to convert 2/4 into 8ths. 2/4 = 4/8 Step 2: Use a visual model. Draw a picture to represent each fraction. Step 3: Now add.
QR Code – scan our QR code and visit our site for more information, activities, and apps. Visit at: www.jcpsmath.weebly.com
8/18/2014
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