Showing posts with label addition and subtraction. Show all posts
Showing posts with label addition and subtraction. Show all posts

Thursday, April 14, 2016

2 and 3 Digit Addition and Subtraction

In Math our current focus is on addition and subtraction. We are working towards adding and subtracting numbers that are 3 digits. A math review was sent home this weekend. Please use our charts below to help students review. Some students need to review how to subtract with regrouping. The chart below will help. We also came up with some strategies to help us add numbers. These strategies really help us when we add 2 and 3 digit numbers. Ask your child about these strategies and review the math work at home this weekend.

Also below are pictures of our Math Centers this week . We played a lot of fun addition and subtraction games with our friends. Ask your child about their favourite games. I will also add some math game links at the bottom to help students review key concepts. Have a great weekend!



http://www.oswego.org/ocsd-web/games/SpeedGrid/Addition/urikares.html
http://www.oswego.org/ocsd-web/games/SpeedGrid/Subtraction/urikasub1res.html

Friday, April 10, 2015

Math Centers


In Math we continue to focus on addition and subtraction of 2 and 3 digit numbers. In class, students are getting better adding and subtracting numbers without using their fingers. Our mental math strategies really help us to solve our math problems. Our math minutes help us to review our strategies and improve our scores each day. To review how to add and subtract using strategies we learn in class, please review our previous Blog post with great charts and information.

http://mrsciampaclass.blogspot.ca/2015/04/addition-and-subtraction.html

This week we introduced a few new math games to help us practice our mental math strategies with partners. We used many manipulatives, tools and devices to help us to add and subtract. Working together with their friends students got the opportunity to practice the skills we work on in class and teach and learn from their peers.

We played an adding and subtracting game using a deck of cards, a dice and dominoes. If you have any of these materials at your home, it is easy to play math games with your child! Simply make 2 or 3 digit numbers and play some fun adding or subtracting games using dry erase markers, or pencils! Ask your child how they play these games and try them at home. If you try a game, please share it with us on your KidBlog account!

Students also created their own subtraction posters at the Math Writing Center to teach their friends how to subtract numbers. The posters will be added to our Math Vocabulary Wall. You can comment on their Subtraction Blogs on our KidBlog accounts!




Students are reminded that they can access our DreamBox Math Account from home. Please continue to play fun DreamBox math games for homework to practice some key number sense concepts that are important for your child's success in grade three.

Friday, April 03, 2015

Addition and Subtraction

Over the past few weeks we have focused on Addition and Subtraction. We are working to add and subtract 3 digit numbers in grade 3. Students are learning many different strategies to help them to add and subtract without using their fingers. We are activating mental strategies by playing many different games. 

We begin each Math lesson with a 2 minute math drill where we see how many facts we can solve in 2 minutes. We are also looking at some math images and finding addition and subtraction in pictures. Students are having fun looking at pictures in new ways to answer the simple question: What Math Do You See? Ask your child about it!

In addition, we came up with a few mental strategies to help us add numbers without using our fingers. Students are very comfortable with adding 2 digit numbers with and without carrying. 

With subtraction, students learned a catchy poem to help them recall how to subtract numbers. They understand subtracting much better when they are reminded of this poem. Please review this math poem with your children. This will really help them to remember how to subtract numbers! We will be moving to adding and subtracting 3 digit numbers next week, as well as focusing on money. The weekend homework practice will help them to review what they've learned this week. If you would like to challenge your children, you can give them 3 digit numbers to add or subtract and see if they remember what to do (for example: 123 + 421 OR 512 - 438).

We are also solving addition and subtraction problems using real life situations. Below are some key terms that you may see in a problem which will help students determine if they should use Addition or Subtraction. We will add more words to this list next week!