Lesson plan

Generate and compare measurement data involving length by representing data on a line plot

teaches Common Core State Standards CCSS.Math.Content.2.MD.D.9 http://corestandards.org/Math/Content/2/MD/D/9
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Big Ideas: Measurement processes are used in everyday life to describe and quantify the world. The ‘shape’ of the line plot graph shows features of the data such as a group (population). Measurements can be quantified using standard measures or common objects. When comparing two objects you need to use a common or standard unit of measure. This lesson builds on the students' work with measuring length and representing data. The task uses the scenario of a "shoe length competition." Students consider and justify the fairness of the competition in order to discover the importance of a consistent unit. Students create line plots to represent their competition results and look for conclusions they can draw given the shape of the data displayed. The mathematical concepts in this lesson build toward students' future work with generating data and representing data on line plots with a scale that is marked off with whole numbers, halves, or quarters. Vocabulary: fair, data, measure, record, length, unit, line plot, scale, axis, reasonable, estimation, label, conclusion, explanation Special Materials: snap cubes jumbo paper clips Shoe Length Competition record sheet Optional: stuffed teddy bear