Lesson plan

Interpret and compare categorical data using a bar graph

teaches Common Core State Standards CCSS.Math.Content.2.MD.D.10 http://corestandards.org/Math/Content/2/MD/D/10
teaches Common Core State Standards CCSS.Math.Content.2.OA.A.1 http://corestandards.org/Math/Content/2/OA/A/1
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

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Big Ideas: Addition and subtraction can be used to summarize and interpret data. Measurement processes are used in everyday life to describe and quantify the world. This lesson builds on the students' work with collecting and sorting data. This task uses the pretense of a PE teacher, Ms. Jackson, recording the results of her students running around the track. Students are asked to interpret data results and complete a tally chart. Students will use the tally chart to create a bar graph and write a question relating to the data for peers. Students are asked to decide on labels for the axes of their graph and explain why they chose these labels. They will discover bar graphs make it easier to add and subtract for interpretation and summary. The mathematical concepts in this lesson build toward students' future work with drawing and solving word problems with scaled bar graphs. Vocabulary: tally chart, representation, data, category, bar graph, vertical, horizontal, axes, axis, total, count (referring to a total of a group) Special Materials: Tally Chart template Grid Paper Blank or lined paper Markers or crayons Optional: Table template Sticky notes Chart Paper