Mrs. Emby-Goodwine, Math, 4th Grade

Posts

CMAS Testing for Math

Hello families!
 
This week students will be taking the Math CMAS test. Testing will take place on Tuesday, Wednesday and Thursday! Students need to arrive promptly on testing days, and you can help set them up to be successful with a good breakfast and a good night of sleep. 
 
I am so proud of their hard work this year! I know testing can be stressful, but we have worked very hard to get ready for this assessment and I am confident that they are ready to do their very best!

Decimal Unit

Hello families!

This week we are starting our unit on converting fractions to decimals. In this post you'll find a family letter about the unit. There were quite a few students today who requested extra practice, but I didn't have a chance to print this practice page out for them, so I attached it here.
 
FAMILY LETTER:
Dear Family,
In this chapter, your student is learning how to work with and relate decimals and
fractions involving tenths or hundredths. These fractions are called decimal fractions.
Your student will also be using these types of numbers to work with money. The
vocabulary words for this chapter are: decimal, decimal fraction, decimal point,
equivalent decimals, hundredth, hundredths place, tenth, and tenths place.
You can help your student relate fractions and decimals at a bookstore!
• Head to your local bookstore with a notepad, pen, and handful or two of coins!
Before you and your student begin browsing the shelves, review how to write a
fraction involving tenths or hundredths as a decimal. Ask your student to write
1/10 as a decimal (0.1), then 10/100 as a decimal (0.10). Look at the two decimals with your student, and ask, "What do you notice?" Your student should recognize that these are equivalent decimals.
• Next, choose a bookshelf. Try to find two books with nearly the same prices,
but with differing tenths and/or hundredths (for example: $14.95 vs. $14.99).
Compare the price tags on each book, and ask, "Which book is more expensive?"
Encourage your student to use a place value chart or number line to answer the
question. Find a variety of price tags for your student to compare.
• Then, pull out your notepad. Ask your student to write the price tag amount
of the book as a decimal, fraction, and mixed number (for example: $2.99,
2.99 dollars, 2 5/10 dollars, 2 9/10 dollars).
• Finally, ask your student a variety of questions. Pick two items with different
price tags, and ask, “How much more money is [item #1] than [item #2]?” Or,
ask, “If we buy these two items, and I pay with a $10 bill, what is my change?”
You can also show your student a number of coins and ask, “Do I have enough
money to buy these two items?”
By the end of this chapter, your student should feel confident with the learning targets and success criteria on the next page. You should start to see his or her confidence grow in working with money.
Have a great time browsing at the bookstore! 

Week of 2/26

Hello families!
 
We have had a great start to our units on fractions. We did chapter 7 last week and have moved on to chapter 8. I've included the letter from Big Ideas here so you can support at home if you would like to. 
 
We have finished the first math book and students will be bringing it home today.
 
I highly recommend having students work on the division and fractions chapters in book 1 if you are looking to support math growth. There are plenty of pages we didn't use that are still good review! 
 
Letter from Big Ideas for Chapter 8:
 

Dear Family,

In this chapter, your student is learning to add and subtract fractions and mixed numbers with like denominators. Area model and number lines are used to help students visualize the operations. The vocabulary words for this chapter are mixed number and unit fraction.

There are many real life situations in which your student can practice adding and subtracting fractions. Here are a few you may want to try.

  • Involve your student in the measurements of home improvement projects. Show how addition and subtraction of fractions are used. Ask your student questions such as, “If I buy a 24-inch board and cut a piece inches long, how much is left over?”
  • When getting ready for a family activity or errand, ask questions that involve fractional amounts of time. For example, “If it takes of an hour to go to the bowling alley,  of an hour to bowl, and  of an hour to go home, how much time will we spend away from home?”
  • Model real-life situations that require adding and subtracting with recipes. For example, say, “A recipe calls for of a cup of flour and
     of a cup of sugar. How much more flour than sugar does the recipe call for?”

By the end of this chapter, your student should feel confident with the learning targets and success criteria. Encourage your student to think of other fractions and mixed numbers.

Enjoy exploring addition and subtraction of fractions with your student!

Week of 2/5-2/9

Hello families!

This week we are continuing to practice division skills. We are learning different strategies we can use when dividing, and practicing working with remainders. You can help at home by using the resources I posted last week for practicing division!
 
Next week we will be starting our fractions unit. Fractions is big for 4th grade, and we are going to be spending a lot of time on fractions. When we start the unit, I will send out a list of resources for supporting with this skill at home!

January update and week of 1/29

Hello families!
 
In the scuffle of returning from break, I've realized I haven't been updating this page! I'll be more consistent moving forward. What you're getting today is an update on January so far, as well as the upcoming week of 1/29.
 
We've moved into the exciting world of division, and are currently working on understanding factor pairs in order to support our long division skills. We'll be continuing to focus on division, factors and patterns for the next several weeks. 
 
If you would like to support your student at home and want a refresher on factors, click here.
 
If you would like to support your student at home and want some fun ways to practice division, click here (some of these would be better in a classroom, but lots could work at home).
 
If your student wants to use the box method to divide, this article is really helpful. I personally never learned this strategy at school, and I'm sure many of you didn't either, but it works well for students as a step towards long division.
 
Next week, week of 1/29, we will be starting to work on long division strategies as we move from single to multi-digit division.

Week of 11/13

Hello families!
 
Continuing with multi-digit multiplication, we have moved into a new unit which focuses on multi by multi digit multiplication (16x24 rather than 6x24). In order to be successful in this unit, it is extremely helpful to know times tables well.  We learned our multiplication tables last year, but we didn't get all the way to mastery. The most helpful thing you can do as a parent right now is to practice these frequently with your student! Here is a link about supporting your student in learning this: https://komodomath.com/us/blog/how-to-help-your-child-learn-times-tables
 
Additionally, here is a letter from Big Ideas, our math curriculum, about the focus of our unit and how you can support at home.
 

Dear Family,

In this chapter, your student is learning to multiply two-digit numbers. Your student will learn multiplication strategies for estimating, using area models, using the Distributive Property, and using partial products. The vocabulary phrase for this chapter is compatible numbers. Compatible numbers are numbers that are easy to multiply and are close to the actual numbers being multiplied.

You can practice multiplication at a warehouse club store where people buy large quantities of items. For example, 1 large box contains 10 smaller boxes, and each smaller box contains 8 packages of fruit snacks. Here are some questions to ask your student.

  • What expression would you use to find the total number of fruit snacks in 1 large box? In 5 large boxes?
  • What are some additional examples of items that are packaged and sold this way?

Another way to help your student practice multiplication is to go online and find the ticket prices for a nearby attraction, such as a movie theater, museum, or theme park. The tickets should have at least two different prices—for example, adults and children. Then use the information to complete the following exercises.

  • Create a group of at least 10 individuals attending the event.
  • Write an expression to find the cost of tickets for the group. Find the cost.
  • Suppose the price for one type of ticket goes up. Explain how your expression should change and how the total cost changes.

By the end of this chapter, your student should feel confident with the learning targets and success criteria below. Encourage your student to think of other reasons to multiply numbers, such as finding the number of seats in an auditorium.

Have a great time practicing multiplication!


Unit Goals
4.1 Multiply by Tens    
Use place value and properties to multiply by multiples of ten.    
•    I can use place value to multiply by multiples of ten.
•    I can use the Associative Property to multiply by multiples of ten.
•    I can describe a pattern with zeros when multiplying by multiples of ten.
4.2 Estimate Products    
Use rounding and compatible numbers to estimate products.  
 •    I can use rounding to estimate a product.
•    I can use compatible numbers to estimate a product.
•    I can explain different ways to estimate a product.
4.3 Use Area Models to Multiply Two-Digit Numbers    
Use area models and partial products to multiply.    
•    I can use an area model to break apart the factors of a product.
•    I can relate an area model to partial products.
•    I can add partial products to find a product.
4.4 Use the Distributive Property to Multiply Two-Digit Numbers    
Use area models and the Distributive Property to multiply.    
•    I can use an area model and partial products to multiply.
•    I can use an area model and the Distributive Property to multiply.
4.5 Use Partial Products to Multiply Two-Digit Numbers    
Use place value and partial products to multiply.    
•    I can use place value to tell the value of each digit in a number.
•    I can write the partial products for a multiplication problem.
•    I can add the partial products to find a product.
4.6 Multiply Two-Digit Numbers    
Multiply two-digit numbers.    
•    I can multiply to find the partial products.
•    I can show how to regroup ones, tens, and hundreds.
•    I can add the partial products to find the product.
4.7 Practice Multiplication Strategies    
Use strategies to multiply two-digit numbers.    
•    I can choose a strategy to multiply.
•    I can multiply two-digit numbers.
•    I can explain the strategy I used to multiply.
4.8 Problem Solving: Multiplication with Two-Digit Numbers    
Solve multi-step word problems involving two-digit multiplication.    
•    I can understand a problem.
•    I can make a plan to solve using letters to represent the unknown numbers.
•    I can solve a problem using an equation.
 

Week of 10/23

Hello families!

This week in math we continued with our multi-digit multiplication unit. See below for a letter from Big Ideas about this unit. Additionally, you can support at home by consistently practicing multiplication facts!
 
We will be doing a daily multiplication challenge. Each day students will have 2 minutes to complete a fact sheet about a fact family, starting with ones. When they pass that family, they will move on to the next family. Our ambitious goal is to be through our twelves by Winter Break! If we can work together as a class to achieve this goal, we will earn a hot chocolate party.
 
Below is the letter from Big Ideas:

Dear Family,

In this chapter, your student is learning how to multiply one-digit numbers by tens, hundreds, and thousands. The lessons address how to estimate products by rounding, and to multiply using properties, expanded form, and partial products. The vocabulary words associated with this chapter are: Distributive Property and partial products.

Your student can practice multiplying by one-digit numbers while looking at prices at home or at the store!

  • While shopping, look at whole-number price tags. For items that are less than $10, ask your student to name a two-digit number, then find the total cost of that many of the item. For example, if a jar of peanut butter costs $4, ask, “How could you find the total cost of 23 jars of peanut butter? What would the total cost be?” Encourage your student to explain more than one strategy for finding the answer. Have your student draw an area model and explain how it can be used to multiply.
  • At home, look through advertisements for items that have a three-digit price. Have your student point out the digits in each place value. Then, have them use partial products to find the total cost of several of the items. Remember to select a single-digit number of items. For example, your student might select a $425 TV. Guide your student to find the total cost of 3 TVs. Ask, “What is the product of 3 and 4 hundreds? What is the product of 3 and 2 tens? What is the product of 3 and 5 ones?” Then, have your student add the partial products. Continue by asking, “Can you find an item that costs about 3 times as much as your item? Is there an item that costs about 8 times as much?”
  • Ask your student to name an item that might have a four-digit price. Look up the cost of the item online. Roll a number cube and have your student estimate the total cost of that many of the item. Then, have your student choose a strategy to multiply. Have your student compare the total cost with the estimate and explain whether the answer is reasonable. Encourage your student to think of word problems involving multiplication that you can solve together.

By the end of this chapter, your student should feel confident with the learning targets and success criteria on the next page. Encourage your student to think of other contexts in which they multiply by one-digit numbers, such as finding the number of minutes in the hours they are in school each day, and then the minutes each week.

Have a great time practicing multiplication!

Week of 9/25

Hello families!
 
This week in math we'll be wrapping up our unit on multi digit addition and subtraction. They will take their unit assessment on Tuesday, and will be tested on their vocabulary list for this unit also. I linked the list HERE so if you would like to help them review vocabulary this weekend and Monday night prior to the test, I would highly recommend that. I will send home a review page Monday night that will support students in succeeding on the assessment.
 
On Wednesday we will start our next unit, which will focus on multiplication. The family letter for the unit is below. We won't have time to finish our unit before break, so I'll be sending home a packet to work on over break. I highly recommend that students work on this packet-- two weeks is long enough that they can forget what they've been learning if they don't do any math.
 
Family Letter for Unit Three:

Dear Family,

In this chapter, your student is learning how to multiply one-digit numbers by tens, hundreds, and thousands. The lessons address how to estimate products by rounding, and to multiply using properties, expanded form, and partial products. The vocabulary words associated with this chapter are: Distributive Property and partial products.

Your student can practice multiplying by one-digit numbers while looking at prices at home or at the store!

  • While shopping, look at whole-number price tags. For items that are less than $10, ask your student to name a two-digit number, then find the total cost of that many of the item. For example, if a jar of peanut butter costs $4, ask, “How could you find the total cost of 23 jars of peanut butter? What would the total cost be?” Encourage your student to explain more than one strategy for finding the answer. Have your student draw an area model and explain how it can be used to multiply.
  • At home, look through advertisements for items that have a three-digit price. Have your student point out the digits in each place value. Then, have them use partial products to find the total cost of several of the items. Remember to select a single-digit number of items. For example, your student might select a $425 TV. Guide your student to find the total cost of 3 TVs. Ask, “What is the product of 3 and 4 hundreds? What is the product of 3 and 2 tens? What is the product of 3 and 5 ones?” Then, have your student add the partial products. Continue by asking, “Can you find an item that costs about 3 times as much as your item? Is there an item that costs about 8 times as much?”
  • Ask your student to name an item that might have a four-digit price. Look up the cost of the item online. Roll a number cube and have your student estimate the total cost of that many of the item. Then, have your student choose a strategy to multiply. Have your student compare the total cost with the estimate and explain whether the answer is reasonable. Encourage your student to think of word problems involving multiplication that you can solve together.

By the end of this chapter, your student should feel confident with the learning targets and success criteria on the next page. Encourage your student to think of other contexts in which they multiply by one-digit numbers, such as finding the number of minutes in the hours they are in school each day, and then the minutes each week.

Have a great time practicing multiplication!

Lesson

Learning Target

Success Criteria

3.1 Understand Multiplicative Comparisons

Use multiplication to compare two numbers.

·        I can write addition or multiplication equations given a comparison sentence.

·        I can write a comparison sentence given an addition or a multiplication sentence.

·        I can solve comparison word problems involving multiplication.

3.2 Multiply Tens, Hundreds, and Thousands

Use place value to multiply by tens, hundreds, or thousands.

·        I can find the product of a one-digit number and a multiple of ten, one hundred, or one thousand.

·        I can describe a pattern when multiplying by tens, hundreds, or thousands.

3.3 Estimate Products by Rounding

Use rounding to estimate products.

·        I can use rounding to estimate a product.

·        I can find two estimates that a product is between.

·        I can tell whether a product is reasonable.

3.4 Use the Distributive Property to Multiply

Use the Distributive Property to Multiply.

·        I can draw an area model to multiply.

·        I can use known facts to find a product.

·        I can explain how to use the Distributive Property.

3.5 Use Expanded Form to Multiply

Use expanded form and the Distributive Property to multiply.

·        I can use an area model to multiply.

·        I can use expanded form and the Distributive Property to find a product.

3.6 Use Partial Products to Multiply

Use place value and partial products to multiply.

·        I can use place value to tell the value of each digit in a number.

·        I can write the partial products for a multiplication problem.

·        I can add the partial products to find a product.

3.7 Multiply Two-Digit Numbers by One-Digit Numbers

Multiply two-digit numbers by one-digit numbers.

·        I can multiply to find the partial products.

·        I can show 10 ones regrouped as 1 ten.

·        I can find the product.

3.8 Multiply Three- and Four-Digit Numbers by One-Digit Numbers

Multiply multi-digit numbers by one-digit numbers.

·        I can multiply to find the partial products.

·        I can show how to regroup more than 10 tens.

·        I can find the product.

3.9 Use Properties to Multiply

Use properties to multiply.

·        I can use the Commutative Property of Multiplication to multiply.

·        I can use the Associative Property of Multiplication to multiply.

·        I can use the Distributive Property to multiply.

3.10 Problem Solving: Multiplication

Solve multi-step word problems involving multiplication.

·        I can understand a problem.

·        I can make a plan to solve using letters to represent the unknown numbers.

·        I can solve a problem using an equation.

 

Week of 9/18

Last week, we got started on our unit on multi digit addition and subtraction. Below is the family letter for you to see!
 

Dear Family,

In this chapter, your student is learning various strategies for adding and subtracting numbers with up to six digits. The lessons address estimating sums and differences, using estimates to check whether an answer is reasonable, choosing a strategy to add or subtract, and using addition to check subtraction. The vocabulary word associated with this chapter is estimate.

You and your student can practice addition and subtraction and review geography at the same time! Have your student think of places you have visited, cities where friends and family live, or landmarks they find interesting. Then, use the Internet to learn about these places while practicing math.

  • Have your student find the distance between your home and a chosen location. Then, have your student add to find how many miles it would be to travel from home to that location and back. Ask, “Did you have to regroup any place values? Which ones? Why did you need to regroup?” Extend this by including another location and finding the total distance. Say, “Suppose we travel to Chicago, then to Atlanta, then come home. How could you find how many miles we travel in all?”
  • Have your student find the distances to two different locations. Have them estimate the difference in the distances, then subtract and see if their answer is reasonable. For example, “Aunt Gwen lives 540 miles away. Grandma lives 172 miles away. How can you estimate how much farther Aunt Gwen lives?” After subtracting, have your student explain why their answer is reasonable, then use addition to check the subtraction.
  • Have your student read about interesting landmarks, then think of and solve addition and subtraction word problems related to the information. For example, “Mount Fuji is 12,388 feet tall. Mount Everest is 29,029 feet tall. How much taller is Mount Everest?” or “How many feet would you climb if you climbed both mountains?” Ask your student to explain how to use compensation and counting on to subtract, or partial sums and compensation to add.

By the end of this chapter, your student should feel confident with the learning targets and success criteria on the next page. Encourage your student to look for opportunities to add and subtract multi-digit numbers throughout the day.

Have a great time practicing math and geography!

Week of 9/11

Hello families!

This week in math we are finishing up our unit on place value. 

We will be taking our place value assessment on Tuesday or Wednesday depending on how our review goes so you should see a test coming home at some point next week or possibly early the week after with a score that will show you how your student is doing on place value.

Our next unit will be adding multi digit numbers. In order to support with this unit, I would suggest spending time every night working on addition, and subtraction with single digit numbers (such as 7+5). Being able to quickly add single digit numbers will help them be able to add multi-digit numbers much more quickly. To support your student at home I also strongly recommend practicing other operations such as multiplication, subtraction, and division on a regular basis.

Week of 9/5 - Family Letter from Big Ideas

Hello families! In this post, you'll find a letter directly from our curriculum that explains what we will be doing and how you can support at home over the next week and a half as we tackle 4th grade place value concepts.

Dear Family,

In this chapter, your student is learning place value concepts. The lessons address how to identify the values of the digits in multi-digit numbers, read and write multi-digit numbers in different forms, and use place value to compare and round multi-digit numbers. The vocabulary words associated with this chapter are: period, ones period, thousands period, and place value chart.

Your student can practice place value concepts by playing a number game. Write the digits 0–9 on two sets of index cards, with one digit on each card.

  • Have your student select four index cards and arrange them to create a four-digit number. Then, have your student identify which digit is in each place value. Ask, “Which is the hundreds digit? The thousands?” Repeat using the cards to create five- and six-digit numbers.
  • Give your student one set of the number cards and keep one for yourself. Each of you selects cards to create a four-digit number. Take turns identifying each other’s number and writing it in standard form, word form, and expanded form. Repeat with five- and six-digit numbers.
  • Select cards to create a four-digit number and have your student do the same. Take turns identifying the greater number and explaining your reasoning. Repeat with five- and six-digit numbers. Then, round the numbers to the nearest ten, hundred, thousand, ten thousand, and hundred thousand.
  • State a rounded number, such as 500,000. Have your student use the cards to create two numbers that round to the given number. For example, say, “What is one number that rounds to 500,000 when rounded to the nearest hundred thousand? What is another number that rounds to 500,000?” Repeat using various rounded numbers and place values.

By the end of this chapter, your student should feel confident with the learning targets and success criteria on the next page. Encourage your student to look for numbers to round and compare, such as prices, page numbers in books, and numbers on license plates.

Have a great time practicing place value!

Math Practice Resources

Hi Families,
 
These resources will be useful throughout this unit and the next. Please refer back to them for practice at home!
 
Place Value is our current focus. I know it may have been some time since you were asked to look at a place value chart, so I've included this link which explains place value clearly.
 
Here is a link to the math vocabulary review that students should have brought home today, in case it somehow goes missing! This will really help them in accessing our content, as well as preparing for their upcoming assessment.
 
Other options for review:
- MobyMax (they know their logins, be sure you are selecting Westgate CHARTER not Westgate elementary)
- Freckle: class code: embyt6. Log in with first name and last initial (Sophie Bloom would be Sophie B, Isabelle Allende-Reeder would be Isabelle AR). The password is 1234. See login instructions here. They will usually have an assignment to complete, or can do fact-based practice here that is targeted to their grade level.
- We sent home a packet with review recently that included addition, subtraction, and multiplication and division. Please use this for fact review.
- An article with 10 easy ways to practice place value at home
- Reach out if you need more ideas!

Week of 8/28

This week, we will be finishing up our third grade review unit with a project and then an assessment. Mid-week, we will be starting our first math unit on 4th grade Place Value Concepts.
 
You can help at home by practicing math facts for 15 minutes each night! I have noticed that the majority of students need practice with all operations (multiplication, addition, subtraction, and division). 

Week of 8/21

Hello families!
 
This past week we launched into a review of Place Value. Students now have a grade in the gradebook that reflects their current understanding of this skill. We will continue to work on place value for the next week, and I highly recommend spending a little time each night reviewing place value or multiplication, addition, and subtraction skills. Students can log in to their freckle accounts (the code is embyt6) to practice their math facts. 
 
Next week we will continue to review place value with two place value projects and an assessment at the end of the week.