Subtracting Across Zeros & Adding and Subtracting Decimals

Wednesday, September 18, 2013
Students learned how to subtract in situations involving zeros. They had to go all the way to their "neighbor" that had a value to borrow. We watched the following video to help students understand subtracting across zeros:

 

Students need to be careful when borrowing (regrouping). I have noticed that sometimes students borrow from the thousands or hundreds and give it to the ones place. Students forget to go place value by place value to give and borrow.

 

 

Thursday, September 19, 2013

Students learned how to add and subtract decimals using models and by lining up the decimal points.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Students also wrote addition and subtraction clue words in their math journals.

 

 

 

All grades are updated on the grade book/database. I have uploaded Friday's test scores on the grade book as well. Please have a look.

 

Estimating Sums and Differences of Whole Numbers and Decimals

Thursday and Friday, September 12 & 13, 2013
Students learned how to estimate sums and differences of whole numbers and decimals. Here is a quick and helpful video that concludes what we learned in class.

Remember Monday HW is due Wednesday. Wednesday's HW is due Friday. Friday's HW is due on Monday. Here is a copy of Friday's Homework (note that HW is not posted on the database because there is an error with my webshare folder). There are 2 pages: Reteaching 2-3 and Reteaching 2-4 (click to download).

Remember to round each whole number then add or subtract. Round decimals to the nearest ones place then add or subtract. If students wish to show work on a scratch sheet of paper they may do so and attach it to the homework.

More Rounding & Homework

Wednesday, September 11, 2013
Students continued to practice rounding whole numbers and decimals. Remember the steps for rounding! Remember the rounding rules: 4 or less, let it rest (stays the same)... 5 or more let it soar (add 1 more)!

Here is a decimals place value chart in case students need it.

 

4C students did not get to see me in math class today due to MAP testing, so we will check Monday's homework tomorrow.

 

All students received a copy of today's homework. Wednesday's homework (click to download) will be due on Friday.

 

Parents, please have your child practice place value and rounding at home! Here's a great Place Value Mat (click to download) to practice with.

Ordering and Comparing Decimals

Friday, September 6, 2013
Today we learned how to compare and order decimals. It's similar to comparing whole numbers, but just with decimal place value. We learned two ways to compare decimals. One way is to look at each place value to determine which one is greater or less. The second way is to line up the decimal point. Students also got to use hundredths grids on our mimio board to compare 2 decimals.

Students glued a copy of our anchor chart into their interactive math journals. See below, except their chart is black and white

 



 

Refer to the above material if your child needs help on their Friday Homework. Please omit number 8 on the last page of the homework. Have a great weekend everyone!!!

Decimals

Thursday, September 5, 2013
Yesterday, students took their beginning of the year M.A.P. tests. These tests are not taken for a grade. Students take these test for reading, science and math. Students take this test to determine students’ instructional level and to measure academic growth throughout the school year.

Today we continued talking about decimals. We learned a cute poem to remember decimal place value and how to read/say decimals.

We used base ten blocks to represent decimals. The hundreds block represents one whole, the tens rod represents one tenth, and the small ones square represents one hundredth.

We watched the following video:
Writing Tenths and Hundredths with Decimals
http://www.youtube.com/watch?v=yWcNQkmpYVk
(I will try to embed the video to my blog later... it's not letting me at the moment)

This should help with Wednesday's Homework (click to download)! Also, problems A, G, and J did not copy well so they are kind of hard to see, therefore, you may download or view it here. Sorry for the inconvenience.

Extra Practice:
If you would like to practice decimals at home, here is something we used in class:

10 x 10 Grid
Parents can shade in an amount and ask students to name that amount or write a decimal and students have to shade in the amount on the grid. Remember 1 grid equals 1 whole.

Decimal Place Value

Tuesday September 3, 2013
Today we learned about decimals and used money to help understand our decimal place values. We watched the following videos:

Decimals and Money part 1:

Decimals and Money part 2:

 

We said that the first place value after the decimal is our tenths and the second place value after the decimal is our hundredths. Tenths are like dimes which are worth 10 cents. It takes 10 dimes to make 1 whole dollar. Hundredths are like pennies which are worth 1 cent. It takes 100 pennies to make one whole dollar.

 

Here's a fun decimal song that we didn't get to watch today in class due to technical difficulties:

 

 

Remember, our Friday Homework Packet is due tomorrow since we had Monday off.