Anchor charts are awesome teaching tools! These examples of how anchor charts can be used to teach addition and subtraction strategies are very helpful. The Jumping Around chart is one I have hanging in my classroom.
I love to have my students use Unifix cubes when solving addition and subtraction problems. This lesson uses Unifix cubes to model regrouping to subtract through trading.I have found that when students have the actual cubes to work with, as least in the beginning, they have a deeper understanding of both addition and subtraction.
As a first and second grade teacher, I am always looking for ways to make learning basic math facts easier and more enjoyable. This free book is totally devoted to teaching students how to solve basic addition and subtraction problems.
These are very clear, and kid-friendly, examples of ways to solve addition problems. The jumping on the number line strategy is really helpful for students. I like to have students use mini-whiteboards for this.
I believe that movement helps kids learn, so I like how this article highlights using body movement to teach first graders addition and subtraction. I used the number line movement activity for having students count forward and backward and they had so much fun and were very engaged!