4.0 The learner will be able to discuss the advantages and disadvantages of using a measuring strip. This problem solving activity requires them to develop new strategies for measuring objects. The challenge of measuring longer objects sets the stage for lesson 15. In this lesson you will observe children using a variety of strategies for measuring objects longer than their measuring strip. Using the strip accurately to measure objects longer than 10 Unifix cubes requires the process of iteration.
Iteration means moving a unit of measure repeatedly while marking the beginning and ending points.
Then the teacher will review making the measuring strip from lesson 13 with the children. All of the students will then be arranged in pairs. On the board in the front of the classroom, the sheet of newsprint will be hung. The teacher will then ask the class to orally share some ideas they have about things they could measure that are longer than their strips. The teacher will record this on the sheet of newsprint.