Second graders have been engaging in their first math investigation of the year. After reading the book Measuring for the Art Show, the boys used inchworm connecting cubes to measure the lengths and widths of several pieces of fabric.
The measurements for the pieces of fabric were carefully chosen by the boys' teachers for their relationship to multiples of five and ten. Boys discover that by using two colors of inchworm connecting cubes, they can quickly recognize groups of 5 and/or 10. Later in the investigation, these measurements will be placed on an emergent number line.
Throughout the project, the boys are encouraged to use a variety of strategies, choosing the ones with which they are most comfortable.
This open ended investigation is designed to encourage the development of some of the big ideas underlying early number sense, measurement, and addition. It is one of three investigations that our second graders will engage in throughout the year, using active problem solving to deepen understanding of concepts they have studied.