# Lesson Plan: Graph Literacy

## Estimated Lesson Duration:

Three stand-alone lessons, each one class period

## Overview:

This lesson includes three graphing lessons that can be taught independently or as a unit to help students analyze and explain graphs. Includes lessons on 1) using graphs to infer relationships between variables; 2) common mistakes and intentional distortions in graphs; and 3) interpreting a graph and writing a narrative summary. The lessons are intended to help students analyze and explain graphs and are not intended to help students make their own graphs.

## Key Concepts and Standards:

** Key Concepts**: How to read and explain a line graph, pie chart and bar graph. How to identify common mistakes or distortions that are made when graphing that can lead to misunderstanding of the data.

- Lesson 1 – Using Graphs to Inferring Relationships between Variables
- Goal: To infer the relationships between variables by analyzing the slope of a graph.

- Lesson 2 – Common Mistakes or Intentional Distortions in Graphs
- Goal: To compare and contrast graphs in order to identify graphs that have errors and have been distorted in order to misrepresent the relationship between variables.

- Lesson 3 – Interpreting a Graph and Writing a Narrative Summary
- Goal: To locate, read and interpret data from a line graph, bar graph or pie chart; identify pattern; deduce relationships and formulate generalizations. To form a logical argument that is supported by the graph or chart and to clearly and concisely express it in their written conclusion.

**Standards**:

- NGSS performance expectations related to “analyzing and interpreting data” for middle school
- Common core mathematics standards related to statistical association or trends (including two-way tables, bivariate measurement data, scatter plots, trend line, line of best fit, correlation).
- Common Core ELA standards related to Integration of Knowledge and Ideas:

CCSS.ELA-LITERACY.RST.6-8.7

Integrate quantitative or technical information expressed in words in a text with a version of that information expressed visually (e.g., in a flowchart, diagram, model, graph, or table).

## Preparations/ Materials

• Review and background information and sources for the teacher

## Downloadable Lesson and Supporting Materials

Lesson Plans

Grade Levels: Middle School

Subjects: Math, Science, Social Studies