Students visit second- and fourth-grade classes to measure the heights of older students using large building blocks as a non-standard unit of measure. They also measure adults in the school community. Results are displayed in age-appropriate bar graphs (paper cut-outs of miniature building blocks glued on paper to form bar graphs) enabling a comparison of the heights of different age groups. The activities that comprise this activity help students develop the concepts and vocabulary to describe, in a non-ambiguous way, how heights change as children age. This introduction to graphing provides an important foundation for creating and interpreting graphs in future years.View the full activity at TeachEngineering: https://www.teachengineering.org/acti...TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more!Music: Dragonfly - Quincas Moreira