This 34 slide presentation can be used in one sitting or, like I do, over a week long period. It takes students through learning how to add numbers that require regrouping by teaching 5 different strategies:
2. Expanded Form
4. Give and Take
5. Old School
These strategies take students to a whole new level of understanding the "how" and the "why" of adding numbers. Some of the strategies have been inspired by Singapore Math and others I have picked up along the way through my 13 years of teaching.
I use this presentation in conjuction with my Game On: Addition with Regrouping Unit found at http://www.teacherspayteachers.com/Product/Game-On-Addition-with-Regrouping-Unit-Plan-and-Activities
I use it after going through my Addition Without Regrouping presentation and unit also found at my TpT store.
See more methods, units, presentations, videos, and songs that I use in my classroom at http://tricksoftheteachingtrade.blogspot.com/