ABC and 123: A Learning Collaborative: Addition
Showing posts with label Addition. Show all posts
Showing posts with label Addition. Show all posts

Wednesday, October 12, 2011

Counting on; an addition strategy


This month's topic is addition.  I am just finishing up my addition unit and one of the most important addition strategies is "counting on".  Here's the basis of it:

This sure does beat putting 6 on your fingers and 5 on your fingers....then, realizing you don't have anymore fingers! :)  So hence the reason for putting the biggest number in your head first!

I made a fun game to help my students practice counting on.
Supplies:
Counting on cupcakes {copy on cardstock, cut, laminate}
Counting on cupcakes recording sheet


Procedure:
1. In pairs, one student chooses a card. They come up with the number sentence that would coincide with the card and write it down.
2. Both players put the greatest number in their head and the smallest number on their fingers and count on. They write the sum.
3. Then, the student who chose a card can check their answer by using their counting on cupcake card.  They touch the number and say it, then they touch each cupcake and count on.
4. The next student can choose a card and continue playing.
Click {here} to download the counting on poster
Click {here} to download the counting on cupcakes game 
Come see me at my blog:


Clipart and/or font used with permission by DJ Inkers
Clipart used with freebie license by Scrappin Doodles

Monday, October 10, 2011

Teaching with Ticia: Make a 10


or make a 9, you can easily adapt this to any number you want.  This is somewhat influenced by my CGI training when I was teaching (Cognitively Guided Instruction).  The theory behind that was to let the kids find different ways to solve the same problem.
I gave my kids a target number to find, so far this week we've done 10 and 9.  This coming week we're going to try other numbers.  Then they used their math blocks to see what combinations of numbers could be used to add up to 10.  For the sake of this activity I only allowed 2 addends, but obviously you're only limited by your rules.

After we did this I remembered an activity we used to do when I was teaching 3rd grade, and the kids were given the day of the month and had to find different ways to find the number, addition, subtraction, multiplication, division, or multi-step problems.  This is a great way to introduce kids to the concept of multi-step problems without them becoming afraid of it because it just seems like play to them.
I made a super simple printable for anyone who is interested, but quite frankly you can just as easily give them a sheet of paper with the number written at the top.

Have you had any math activities that were a big hit for you?

Monday, April 27, 2009

Math Monday: Addition

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Today's Math Monday is all about addition!


Aren't sticker's great? There are so many uses for them in early childhood math! Second Star to the Right and Straight Til the Morning used them with her son to represent kindergarten level addition problems.


Hey, I'm just the Nanny shows us how she used an old set of cards to practice addition.

Hey, I'm Just the Nanny also did this cute clothespin addition activity.