Primary Chalkboard: Gettin' our Math On!

Gettin' our Math On!

Hi Friends.... Anna here from Simply Skilled in Second.  I wanted to share with you what my class has been working on in math lately.

Two years ago, my district adopted a math program called Primary Mathematics, basically it is Singapore Math.  It is actually the program that the CCSS were derived from.  I have been teaching second grade for 20 years so learning a WHOLE NEW PHILOSOPHY on math instruction has been say the least.  But I have to say that now that I have worked with Singapore Math for two years, I really believe we are on to something here!!  I would not have expected my second graders to be able to regroup with addition and subtraction so early in the year a couple of years ago....but my mind has been changed!

We start off early in the year with understanding what makes up a number (part, part, whole) and we jump right into number bonds.  Then we move right along to adding a two digit number to a single digit number using the decomposition method.  I really helps them to understand what each digit stands for and how to easily add them together using this method.

Here we are at the end of November and my little kiddos are adding triple digit numbers with regrouping using the decomposition method...and my challenge group {I do Guided Math} is adding 4 and 5 digit numbers with grouping in EACH column using this method as well....pretty cool..huh?

Here are a couple of pics of their work from this week....

It is pretty impressive what they can do so early in the year!

As I mentioned above, I do Guided Math in my classroom.  This is the first year that I have implemented it and it is AMAZING!  I cannot believe I haven't done this before!  It is awesome!

I am not going to go into a ton of detail about Guided Math in this post, but I just wanted to show you a couple of pics of what my "other" little ones are doing while I am with a group.  

Since we are working on decomposition and addition of numbers, I have my Math Stations set up with various activities that support this skill.

As a THANK YOU for stopping by, I have attached a FREEBIE for you that can get you started with addition and subtraction with and without regrouping using the decomposition method.

Click this image below to download a 20 PAGE freebie to get you started!

And if you are interested in some of my Penguin Math Stations that I utilize during our Guided Math Stations, click the image below to check it out in my TPT Shop :)

Thanks so much for stopping by today!  Happy Math"ing"  :)


  1. Anna, I love this post! My fellow team teachers and I have been talking about Singapore Math, and our district is ready to adopt a new program. Thanks for the great info and freebie!


  2. Thanks for this post! We're right in the middle of doing this as well, but without a program. Love the ideas and the freebie.

    What I Have Learned

  3. Thank you. I just started teaching 2nd grade and my school in NYC teaches math by pulling from a variety of programs, rather than following one particular program. I am confused. We taught this for adding 2 digit numbers and we will be moving onto adding 3 digit numbers. So your post and freebie are very helpful. Do you also use an open number line as another method of adding??

  4. this is awesome! i love that it reinforces place value and understanding the value of the number in addition to adding the two numbers together!

  5. This is a fantastic resource! Perfect for common core math instruction!