5th Grade Math Resources for CCSS 5.NBT.7

5.NBT.7: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

UNPACKED EXPLANATION: Do computations with decimals in all four operations, being able to relate work to models or drawings, and utilize strategies based on place value, properties, and the inverse relationship of addition and subtraction. It's the culmination of the entire NBT strand.

WHAT THE PARCC WILL EXPECT: I've said it before and I'll say it again. The practice test hasn't, in my mind, done justice to how difficult the actual PARCC test is. So my advice is to make sure this standard, as all others, is taught to the letter of what's being asked. The practice questions are a straight forward .035 x 1.5 and 5.63  + 14.37, which aren't that difficult. So just go ahead and hit the depth of the entire standard, I think it's the best way to go.

RESOURCES:

• Math Worksheet Land Worksheets
• Mr. Maffesoli.com Worksheets on 5.NBT.7
• A couple of great word problem pdfs: Diminishing Return and Got Your Number.
• EngageNY full module: This huge document can be a little cumbersome, but if you do a search on the standard 5.NBT.7 then you'll find a few great problems and scoring rubrics here. 
• 5.NBT.7 games

5th Grade Math Resources for CCSS 5.NBT.3

5.NBT.3:  Read, write, and compare decimals to the thousandths.

(a) Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).

(b) Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

First of all, this standard has two parts. We will first focus on part (a) of the standard:

5.NBT.3a

UNPACKED EXPLANATION: To put it as simple as possible, this part of standard 3 asks students to write the expanded form of numbers, fractions included to represent tenths, hundredths, and thousandths. 

WHAT THE PARCC WILL EXPECT: Just like 5.NBT.2, there are no performance tasks for 5.NBT.3 (a or b). So, the best approach to take here is to use these standards to prepare students for the more rigorous work that lies ahead later on in the NBT domain. If your students can accurately write standard, word, and expanded form of numbers that go to thousandths, they'll be fine on this standard. It really is a simple one that can be tied to some other standards as well.

RESOURCES: Again, this will be fairly straight forward. If you teach in sequence (and there's really no reason you shouldn't with this domain, it's already laid out that way), then your students will already have a good understanding of place values in the base ten system, making this the next step.

• Adjective/Noun Theme: As someone who has been through a full round of Intel Math training, I fully believe in and utilize many of their strategies, including adjective/noun theme. The a/n theme has been around long before Intel, but is very conceptual and powerful when students learn to utilize it. HERE is a document that explains adjective/noun theme in the four operations. And HERE is another document on adjective/noun theme with decimals. The basic premise here is that numbers are adjectives that describe nouns. You can't add together two unlike nouns (you can't add together 4 dogs and 2 cats without some sort of combining of nouns). So if it's 45 hundredths + 8 tenths, we have to do some converting to get 45 hundredths + 80 hundredths, and then we add the adjectives to get 125 hundredths. It's a simple yet effective way of teaching this stuff that is conceptual and leads to long term retention of learning. 
• Some worksheets and pdfs:
• mrmaffesoli.com 5.NBT.3a worksheets: A listing of some great 5.NBT.3a worksheets, there's quite a few here.
• Common Core Sheets: There's a pretty large listing here.
• Internet 4 Classrooms 5.NBT.3a: Wow, there's TONS here. 
• GAMES:
• Mathman: A Sheppard Software game, very simple and straight forward Pacman style game that reinforced expanded form, although it might not go as far as decimals. It's good practice for kids struggling with their expanded form of numbers. 
• Fruit Shoot: Another Sheppard Software game. If you play the harder levels it's a spot on match for 5.NBT.3a.
• Walk the Plank: A game from mathforchildren, it's funny and kids enjoy it.

5.NBT.3a VIDEO: This is a Khan Academy video that discusses expanded form with multiplication, pretty much as stated in the CCSS. 

5.NBT.3b

UNPACKED EXPLANATION:  Compare two decimals to thousandths using inequalities (<, >, =). 

WHAT THE PARCC WILL EXPECT: Again, this standard is not included on PARCC practice exams. This is a pretty important standard for students to master, however, because it allows them to show mastery over comparing decimals, understanding place value, and even the ability to properly complete inequalities. So let's just go from there.

RESOURCES:This standard is almost identical to the inequalities standard that many states already had in place before the Common Core, so anything you, as a teacher, already have prior to CCSS (if you didn't trash it) would work great here. Here's a few online resources:

• orglib.com questions library for 5.NBT.3a and b: There's not a lot of questions here, but what they do have are to the point and would probably be what it would look like on PARCC. 
• Collection of lessons from mathworksheetland.com for 5.NBT.3b (some 3a stuff is in here as well).
• mrmaffesoli.com 5.NBT.3b worksheet resource page: Yet again, some great resources. Go ahead and bookmark this site, it's golden for everything CCSS.
• Common Core Sheets: Same as above for 3a. Good stuff, with many different versions of worksheets available. 

GAMES:

• Balloon Pop: A simple yet great game for ordering decimals. It's a challenge, but students are sure to enjoy it.
• AAA Math Comparing Decimals: It's more like an online practice test than a game, but it really works well. 

5.NBT.3B VIDEO:

5th Grade Math Resources for CCSS 5.NBT.2

5.NBT.2: Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.

UNPACKED EXPLANATION:  This one is fairly straight forward. This standard is commonly known as "the powers of 10," so keep that in mind. It's all about base 10 and understanding that you're multiplying by ten each time you move to the next larger place value, with an understanding of the opposite function of adding a 0, which is removing a zero, while understanding conceptually that removing a 0 means the decimal point has moved a place to the left. Finally, exponents are a great way to have students denote these relationships, and starts building upon skills they'll use a lot further on down the road.

WHAT THE PARCC WILL EXPECT: The PARCC Practice Test site does not have specific problems for 5.NBT.2, but when looking closer at this standard, students will need to be familiar with problems that resemble the following:

• 34 x 10,000 =
• 90,000 ÷ 30 =
• 0.00034 x 10,000 =
• Check out this collection of videos from LeanZillion that explains the entire process of powers of 10.

RESOURCES

• First off, a lot of the things I referenced in my post for 5.NBT.1 are relevant to this standard as well. So check that out: 5th Grade Math Resources for CCSS 5.NBT.1.
• Some practice problems at Orglib.com: This is a great site where you can make an account, build tests from a bank of questions, and even track student results. It's one of the closer things I've found that can mimic the PARCC assessment. 
• Even though it's in my last post, this is a spot on activity for this standard:
• Place value cups (click the link for instructions): This simple activity is very concrete for kids, and if you keep a few handy, they're good for reference later in the year for students who didn't retain everything they learned during the teaching of 5.NBT.1.
• Powers of 10 Yahtzee: Although I linked to the Google Doc here, I'll go ahead and explain this game in my own words: 
• Power of 10 Yahtzee should be played in pairs. Students should already have an understanding of exponents and how to navigate a place value chart. Each player is going to roll the dice. Whatever number player A rolls they will put it as an exponent to the base number 10 (if they roll a 4, they will be finding the product of 10 to the power of 4, or 10,000). Then player B goes. They do this 5 times, and add up their totals, whoever has the highest total wins. A more rigorous extension of this game for the advanced student would be to have each student roll two dice (preferably different colored dice would work), and have one color be the base number and the second be the exponent). 
• IXL Listing of Problems that Fit the Standard
• The following listing is for worksheets:
• Mathworksheetland.com 5.NBT.2 Listing: A great starting point. Why make your own worksheets when there's already practice stuff out there. If you know how, you can send these right to an iPad and have kids do some practice there, or print them out.
• Mrmaffesoli.com Printables: I use these, good stuff for sure.

Vocabulary

I'll list a few sites that have good 5.NBT.2 vocabulary. I can't really even begin to say how important it is to teach students not only what academic vocabulary words mean, but how to use them in context. There's a lot of power in having students state their reasoning academically that goes beyond testing and helps reinforce the ideas they're learning about.

• A great pdf at what's a great go to resource for vocabulary, duplinschools.net. 
• UEN.org resource file with vocabulary.

5.NBT.2 Video

The first two videos are of Khan Academy explaining both multiplying and dividing by powers of 10:

Multiplying by Powers of 10

Dividing by Powers of 10

Lastly, the STEM teacher in me can't resist putting up this video that explains what exponential growth is really all about in a scientific regard. I give to you now, Cosmic Voyage, narrated by Morgan Freeman:

5th Grade Math Unit 2: Place Value From Billions to Thousandths, Notations, Comparing, Ordering, Adding, and Subtracting Decimals

I recently finished and posted to my static pages Math Unit 2: Place Value, Notations, and Decimals. This unit is part of my years worth of math units, which can also be accessed from my Math 9 Week Plans page.

In the spirit of convenience, I will also include the exact text of this unit here as a post in the main posts page of my blog. I hope that you can find this helpful:



5th grade Math Unit 2 involves place value from thousandths to billions, comparing and ordering numbers from thousandths to billions, and finally, adding and subtracting decimals.

The all encompassing, end of unit assessment can be downloaded in .doc format HERE to get you started.

These concepts are important to future success in math, and are taught in three parts so that the concepts scaffold onto one another as we go. This unit comes after a large numbers and operations unit that we started the year with, one in which students identified factors and multiples, worked with prime factorization, and finally refined skills in multiplication and division.

The unit is split into its three parts here, with all necessary exams and paperwork attached:

Unit 2.1: PLACE VALUE FROM THOUSANDTHS TO BILLIONS

It's important that students have an understanding of very large and very small numbers in the 5th grade. So we start by working on place value. Place value is a good place to start because it comes down to practice, repetition, and memorization of the place values.

The PDSA that accompanies unit 2.1 can be downloaded HERE.
The Unit 2.1 Assessment can be downloaded HERE. (I should mention right here that most of the assessments I have are also available in Spanish. Just let me know if you're interested).

By applying backwards design to this portion of Unit 2, the assessment shows a need for knowledge in: expanded notation, written notation, standard notation, and place value.

Activities to meet these needs are listed below:

First, I highly recommend a great activity called Place Value Cups. I originally came across this activity on a blog titled Look+Listen=Learn. By making these cups, students are given multiple opportunities to practice place value and expanded notation at the same time. It's a great activity, and I'm excited to see the difference it can make with students who struggle with this concept.

Teaching place value and the different notations is actually quite different than a lot of mathematical concepts. By this age, it should be more refinement and scaffolding than outright teaching. Let's be honest, if a child reaches 5th grade and has no understanding of place value, they've probably never been instructed before, or had some flat out awful teachers in the past, because it's integral to 3rd and 4th grades. I've found that students benefit more from practice practice practice than anything else. So while using the place value cups, I also refine the concept of how to say numbers.

Saying numbers aloud, especially larger numbers and numbers with decimals in them, can be daunting for the struggling math student. When I say "saying numbers aloud," I'm also teaching expanded notation. I like to rely on comma naming to give students a chance to know how to say numbers possibly before they conceptually understand big numbers (millions and beyond).

I teach students that the first comma is called thousand, the second is called million, and the third is called billion. We practice this in class. Then, we practice saying numbers with comma names. The great thing about this is that students never have to actually say a number larger than hundreds. Here's an example:

324,783,013.... The student would first say three hundred twenty four. This is simple, it's a concept that has been mastered by the vast majority of 5th graders years ago. Then it's a matter of naming that comma. It's the third comma we're looking at, and its name is billion. So, three hundred twenty four billion... Then the student would continue on... seven hundred eighty three, this time it's the second comma, million... seven hundred eighty three mission... thirteen. And that's the end of that. It really helps students understand and be able to say numbers, which we then build on with expanded notation. Expanded notation is fairly straight forward. It will also be covered in the resources below:

Here's a few resources to get you started:

• Place Value Charts at Adrian Bruce's Math Stuff: I will be printing off the charts and hanging them up in the classroom to use as an example. They go up to quadrillions. I only need up through billions.
• A simple, colorful chart to help with place value and expanded notation: PDF document.
• Numerous worksheets from MathAids.com.
• A chart to help students write numbers and understand their place values.
• A pdf packet of worksheets on the subject. I especially like page 10.

Unit 2.2: COMPARING AND ORDERING DECIMALS

After we have taught place value to thousandths (and billions), we move on to ordering decimals, and comparing decimals with <,>,= statements.

The PDSA for Unit 2.2 can be accessed HERE.
The assessment for Unit 2.2 can be accessed HERE.

By using the same method of backwards design, starting with the 2.2 assessment, we see that in this particular cycle of the lesson, students will be learning how to apply less than, greater than, and equal to statements to decimals, and will learn how to order large numbers with decimals (and simply large numbers is also acceptable here) either from greatest to least or least to greatest. Finally, it's important to apply these skills to word problems. So here we go:

• Head off to Khan Academy for his lesson on Comparing Decimals. Khan Academy is great, because he teaches through video, and offers various practice problem sets. Plus, he's got TONS of stuff.
• Fruit Shoot Comparing Decimals Game: An interactive game for students to play.
• I like for my students to practice ordering numbers on hanging number lines. It's a simple concept involving string and folded pieces of paper (or note cards). 

• This document, titled Gap Closing, has some great activities to fit this unit of study, particularly comparing and ordering decimals. 
• This pdf document includes a small chart I have my students make so they can begin to understand conceptually how and why they compare numbers, and what it actually means, in terms of place value, when one number is larger than another.
• Finally, a refresher on inequality symbols (if your students don't know this, they need to know this!)

UNIT 2.3: ADDING AND SUBTRACTING DECIMALS

Finally we end this unit with a cycle on adding and subtracting decimals. The concept is straight forward, and quite simply involves lining up the numbers to be added or subtracted by the decimal point.

The PDSA for cycle Unit 2.3 can be downloaded HERE.
The Unit 2.3 assessment can be downloaded HERE. If you like to save time, as my grade level team does, we don't use this assessment, instead, we simply score the final page (the adding and subtracting decimals page) twice, once as part of the unit score, and once for a unit 2.3 score.

• Here is a nice visual from Cool Math.com that pretty much explains it all. 
• Enchanted Learning also has a page about adding decimals, with some fun pdf worksheet games to go with it.
• My favorite worksheet building site, Worksheet Works, has pages of fully customizable and downloadable (in pdf) addition and subtraction of decimals worksheets.

Just remember, the concept of adding and subtracting decimals is quite simple. It all comes down to lining up the decimal, regardless of how huge one number might be and how small the other might be. Your students also might think about using zeros as placeholders when doing this!

5th Grade Math Unit 4: Fractions, Decimals, and Percents

5th Grade Math Unit 4 is on Fractions, Decimals, and Percents. This unit is pivotal to the 5th graders future success, especially as this group of skills is seen as very important to their understanding of algebra in middle school.

This unit is placed within my static pages (the link is above). As always, I am placing that entire page here for convenience. I hope you find it helpful:

Math Unit 4 in my 5th grade class is focused mainly on fractions, decimals, and percents. In many conversations with 6th grade teachers, I am often told that if their incoming math students know only two things, it needs to be basic multiplication and division facts, and the ability to work with fractions. This is the unit that we start on coming back from Christmas break, and it carries for an entire month. Of course, the teaching of these skills begins early in the school year through daily math practice and consistent math homework as well.

This upcoming school year, we have drawn out the following schedule (our entire math schedule for the 2012-2013 school year can be accessed in .doc format HERE):


January 9 – January 18: Equivalent fractions, decimals, and percents
January 22 – January 30: Compare and order fractions
January 31 – February 8: Add and subtract fractions

When viewing the document for the entire school year, you can see that "unit 4" includes the data unit as well. This was done for our own purposes, but for the purposes of this blog, I have kept these two units separate.

Each one of the skills listed above constitutes what we call a "cycle," according to our Plan-Do-Study-Act (PDSA) format of data analysis and collection. I will list each cycle separately below, with the necessary documents, and some valuable resources and ideas:

Equivalent Fractions, Decimals, and Percents

At one time, as many teachers have, I tried teaching these three skills separately, and found that it was redundant. Fractions, decimals, and percents all go so nicely together, and should be taught together. The PDSA for this cycle is available HERE, as well as the Unit 4 Exam (a quick note, the exam for the entire unit is what I have linked to, the first two problems (the first and most of second page) are what constitutes the exam for this section. To save time, we normally take that portion in isolation, change out the numbers, and give the test). Our tests are in the format they are in because it closely resembles the New Mexico Standards Based Assessment. Here are the resources for this cycle:

• Fling Your Teacher: An online multiple choice review quiz that eventually lets the student fling the teacher in a trebuchet.
• Fractions Through Lines of Symmetry: A simple starter worksheet (pdf) that has students cut shapes into various fractions. It's a simple way to get started or give struggling students a chance to be a little more successful.
• Equivalent Squares: A very cool dominoes style game that students will enjoy. It plays right into the very point of this skill. It's a pdf document, it comes with very clear instructions and the squares ready to cut out. 
• Percentage Squares: Another great game, it's not the same as the one listed above, but is a very good, quick activity in pdf format. Since I've listed two resources from the same site, go ahead and check out Teaching Ideas, a great site from the UK with tons of printables. 
• Equivalent Fractions Memory: A matching game played in browser.
• Math Illuminations Equivalent Fractions Builder: If you use a Smartboard to teach, use this great interactive for whole class teaching.
• Equivalents Table: This is pretty much the backbone of this entire lesson.
• Worksheets: 
• Worksheet Works Equivalent Fractions Worksheet Builder, and the entire Worksheet Works Fraction Page
• Mathaids Worksheet Builder and the fractions page
• Equivalents Fill in Practice Worksheet: An easy to use worksheet that practices the skill exactly as it appears in the unit exam.
• Equivalents Packet: A few good activities, already ready for printing.
• Fraction Strips: This is a good activity. I have students make fraction strip books based on the strips in this worksheet. It's a great visual

Compare and Order Fractions

When looking at the Unit 4 Exam and the PDSA for this lesson, you'll see that this lesson involves putting fractions (and decimals) in the correct order, and comparing them using <,>,= statements. We go up to twelfths, and use like and unlike denominators:

• Math Playground Comparing Fractions, a simple starting point: A good place for the student that just needs more practice to get it online. I have students take a sheet of paper, and work out the problems as they go.
• Flower Power: An ordering decimals computer based game.
• Worksheets:
• Are You My Equal?: A packet with some decent activities, this whole thing is put together as a unit, with a summative assessment at the end. I'm partial to the fraction templates, equivalent fractions, and dare to compare worksheets included (which I have isolated into a separate pdf file HERE). 
• TONS of Blackline Masters: I'm surprised I hadn't ever come across this page. There's tons of pdf documents available that are age appropriate for 5th grade, including fraction strips, circles, and a Fraction Number Line. This is based exactly on a lesson done in Math Investigations (but a lot less costly, free always helps).
• Math Drills Worksheets: A lot of comparing decimals worksheets.

Add and Subtract Fractions

Here's the final part of the unit. The PDSA for this lesson and the Unit 4 Exam will both show that we teach adding and subtracting fractions with both like and unlike denominators. Once students have the hang of it, move on to having them add and subtract mixed numbers:

• Action Fraction: A fun online game at Fun School. I played it for a few minutes, by Level 3 it can get a little difficult, but it's fun and engaging.
• Math Playground Practice Activity: Another nice activity from Math Playground. It gives good practice in the web browser. Send a kid with some paper to work the problems, and they get instant feedback.
• Worksheet Works: Fraction Addition Sequence (I love this activity and will be using it). There's also a nice selection of Fraction Addition Skills and Fraction Subtraction Skills worksheets there. Everything they have on fractions can be seen HERE (I absolutely love this website). With all of these worksheets, have the struggling student use the Fraction Circles as a tool to help them along.