This free math tutoring video shows more ways to play “What’s in the Box?” Missing addends, subtraction, lots of fun stuff here utilizing the Cuisenaire Rods! Be sure to watch my videos “Teaching Addition and Subtraction with Cuisenaire Rods” and “The Three Meanings of Subtraction” to get the full picture of what is happening here. It is very important to understand the concept of whole/parts (or number bonds) in order to decode word problems. This is where you start.
Tag Archives: subtracting
The Three Meanings of Subtraction – Free Math Tutoring Video
This free math tutoring video explains the three ways of thinking about subtraction (taking away, finding the difference, and whole/parts) and explains which one is best and why. I also talk briefly about why counting strategies are not as effective as visualization of quantities. There will be more on this topic in a later video.
Once again, Cuisenaire Rods come to the rescue and make everything easy. They are a treasure. If you don’t yet have some, go buy them!!!
Introducing Subtraction – Free Math Tutoring Video
This free math tutoring video shows me introducing my 4-year-old (and “Wormie the Snake”) to subtraction using Cuisenaire Rods. Just see what piece is missing! Cuisenaire Rods make it all so easy!