
2nd grade students have been learnng different strategies to add and subtract. Mr. Krueger shared the following example with teachers, and I thought I would pass it along to you. This is a great model for visual learners!
A number bond is a mental picture of the relationship between a number and the parts that combine to make it. A student who "knows" this number bond should be able to immediately fill in any one of these three numbers if it were missing, given the other two, without having to "work it out".