Working with Decimals by Jaimie Barnhart https://padlet.com/jaimierenee87/kf7qhfciygqd Decimals and Real Numbers en-us 2016-07-20 02:52:25 UTC 2023-05-19 14:47:52 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Templeball.png We will become familiar with the base ten number system so we can successfully work with decimal numbers jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116667795 2016-07-20 02:58:09 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116667795 jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116667902   THE BASE TEN NUMBER SYSTEM]]> 2016-07-20 02:59:59 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116667902 In this lesson we will learn about "places." We will be able to look at numbers with multiple digits and determine which digit is in the ones, tens, hundreds and so on. jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116668097 2016-07-20 03:03:18 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116668097 What we need to know...... jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116668676 Fractions and decimals are different ways to represent parts of a whole number. We are familiar with fractions so let's start by learning how fractions and decimals relate to each other. ]]> 2016-07-20 03:13:01 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116668676 References jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116669255 http://www.helpingwithmath.com/by_subject/decimals/dec_teaching_decimals.htm
http://www.skillsyouneed.com/num/decimals.html
http://www.azed.gov/standards-practices/mathematics-standards-2/

http://www.csun.edu/~hbund408/math%20history/math.htm]]> 2016-07-20 03:22:01 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116669255 Arizona Department of           Education jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822115
High Academic Standards for Students
State Board Approved June 2010
October 2013 Publication 
According to the state standards students will be expected to work with:
Number and Operations in Base Ten (NBT)

  • Understand place value.
  • Use place value understanding and properties of operations to add and subtract.
]]> 2016-07-22 15:54:08 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822115 History Of Decimals jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822349 You might  be surprised to learn that that modern methods of working with decimals were invented less than 500 years ago. That is really not very long considering basic math concepts have been around thousands of years! The person who is credited with making decimal fractions widely known  is Simon Stevin of Bruges, in the Flemish Netherlands. He wanted to teach everyone "how to perform with an ease unheard of, all computations necessary between men by integers without fractions ".  Decimal fractions as they look today were used by John Napier, a Scottish mathematician. Here are some examples of how early decimals problems looked: 
Notice how they have always been closely worked with fractions.
http://www.csun.edu/~hbund408/math%20history/math.htm]]> 2016-07-22 16:01:39 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822349 You will be using decimals throughout your life. For example, a big one is decimals and money. If you are buying candy and one chocolate bar costs 1.5 cents and a lollipop costs .67 how much do you owe? jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822703 Lets do some addition with decimals!

1.35
+.67
(notice we always want to line  up the decimals)
7+5=12 carry the 1 over
6+3=9 add the 1=10
carry the 1 over again
BUT REMEMBER TO BRING YOUR DECIMAL DOWN!
1+1=2

Therefore you will need $2.02 to buy your candy. 

In the future you will be using this to do more adult things like paying bills. Not fun, but you will see how important learning decimals was because you don't want to pay the wrong amount on an important bill. You will also need to know decimals and fractions when you learn to drive, you need to pay attention to how much gas is in your tank!    3/4 of a tank will get  you a lot further than 1/4.  Why is that?   Let me show you how to convert these to decimals and we will see which is larger. 

You can look at the line that divides the fractions as a division symbol. So when you see 3/4 you can also look at it as 3 divided by 4.    When you work this out, it equals .75.
When you divide 1 by 4 you get .25. So you see when you have 3/4 a tank you can go far, when you  have 1/4 , time to find a gas station!]]> 2016-07-22 16:14:47 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116822703 jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116823245 2016-07-22 16:32:38 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116823245 jaimierenee87 https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116823615 Let's play a game! I am going to hand out some game boards like this, each with different decimals. I am going to provide you with fractions, if my fraction matches your decimal block it out with your chip. We are basically playing Bingo with math!!! :)]]> 2016-07-22 16:44:46 UTC https://padlet.com/jaimierenee87/kf7qhfciygqd/wish/116823615