Some data just doesn't follow a straight path. Learners use line graphs to represent data that changes over time. They use the graphs to analyze the data and make conclusions.

Working independently or in teams, your class practices connecting graphs, formulas and words. This activity includes a guided discussion about distance vs. time graphs and looking at how velocity changes over time.  

Feeling under the weather? This instructional activity on hurricanes can whip things up! With professionally designed maps and handouts, teach your future weathermen (or women) where, when, and how hurricanes occur. They identify...

Is it really that big of a deal if the global climate undergoes a little change? Young environmentalists consider this very question as they discuss in small groups the impact of different climate change scenarios on their lives,...

Whether you have your class plant seeds or begin when sprouts are visible, math skills are used here to predict and track growth over time. Straw bar graphs show plant height on a given day while the graph as a whole shows changes over...

Determine the slope when the unit rate is difficult to see. The 17th part of a 33-part series presents a situation that calls for a method to calculate the slope for any two points. It provides examples when the slope is hard to...

Eighth graders analyze data from line graphs. They discuss the purpose of line graphs, identify the parts of a line graph, answer questions about various graphs, and complete a worksheet. This lesson includes a script to teach along with.

Future weather forecasters collect daily temperatures over a period of time. Afterward, they compare their data with monthly averages, as researched on national weather websites, in order to grasp the difference between weather and...

We can mathematically model the path of a robot. Learners use parametric equations to find the location of a robot at a given time. They compare the paths of multiple robots looking for parallel and perpendicular relationships and...

Students explore the changes in sea ice over several years. In this life science lesson, students review and examine 20 years of data. They use Excel to graph data and analyze trends.

Simple, but suitable, this lesson gives mini-meteorologists a glimpse at ozone in the atmosphere. By reading an article, they find that ozone in the stratosphere is vital to life, but ozone in the troposphere is problematic. A reading...

Middle and high schoolers look at historical photos and analyze some of the changes brought about by the automobile revolution in Arkansas during the 1920's. The book, A Journey Through Arkansas: Historic U.S. Highway 67, is used for...

Fifth graders interpret line graphs. In this graphing lesson, 5th graders first begin by reviewing the difference in bar and line graphs and what they are used for. Students practice interpreting the data on various line graphs and using...

Does increasing the pressure between two moving plates provide a stabilizing force or create more destruction? The hands-on lesson encourages exploration of strike-split fault models. The sixth lesson in a 20-part series asks...

Students examine their own lives and how well they manage their time outside of school. For this this time management lesson, students discover the amount of time they spend on other activities, and create a pie chart with that...

Students compare paper making by hand and by assembly line. For this manufacturing lesson, students compare and contrast the two main ways to make paper, by hand or by machine.  Students research paper making and have a class...

Students view a television program that traces the use of the assembly line in mass production and the subsequent conflict between workers' rights and management. They analyze and discuss the portrayal of the American worker over time...

Students make a simple sundial to examine the changes in shadows over time. In this sundial and shadow lesson, students make a simple sundial out of a manila folder and pencil. They observe how shadows change over time, and relate it to...

Learners analyze line plots. In this weather lesson plan using real NASA data, students discuss how weather affects the way the Earth is heated by comparing different line plots.

Students explore the historic district via a scavenger hunt. In this community history lesson, students complete a scavenger hunt using historic postcards and clues as guides. Students create a timeline demonstrating changes of the area...

Seventh graders explore how milk spoils over time. In this biology instructional activity, 7th graders discover how pH changes as microorganisms enter the food and multiply. They explain the benefits of pasteurization process.

Students relate data to coordinate graphs and plot points on this graph. They use minimum wage data to construct the graph. Students decide appropriate time intervals for the graphs. They share graphs with their classmates.

How have horses evolved over time? How do horse skulls reveal this evolution? How have the roles horses play changed over time? What kind of social structure do horse herds have? How should wild horse populations be managed? To find the...

Sixth graders examine how to make line graphs.  In this Olympic line graph instructional activity students make line graphs and search the given Internet sites to find data on their summer Olympic Game.