I have a new website for additional support at home. The Oakdale site I posted in October continues to be a great resource, but Eureka Math, the company publishing our workbook also has a great website.
*Arrow notation(way) - greater or less a number represented by an arrow
*Tape diagram - diagram shows the relationship between two quantities
*Chip model- drawing dots on a labeled place value chart to represent ones, tens, hundreds, etc.
*Algorithm - a step by step procedure to solve a particular type of problem
*Compose - make a larger unit from 10 smaller units
*Decompose - break apart a larger unit into 10 smaller units
We are well into Module 4 which is addition and subtraction with regrouping. I realize it has been difficult understanding the new methods for solving problems. By providing your children with a variety of strategies, they can problem solve their way around any problem. Only having one method to solve a problem is limiting. We also have a goal of solving most problems mentally. For the remaining lessons in Module 4 we will be using the previously taught strategies, arrow notation, number bond, tape diagram, chip model, and vertical method.
Since Module 5 is a continuation of Module 4, just using larger numbers, we will continue with the same groupings, with changes as the teachers see fit.