This collection of free, authoritative source information about the history, politics, geography, and culture of many states and territories has been funded by the National Endowment for the Humanities. Our Teacher's Guide provides compelling questions, links to humanities organizations and local projects, and research activity ideas for integrating local history into humanities courses.

Students design and conduct simple experiments using elodea (aquatic plant sold in pet stores) and Bromthymol blue to determine whether plants consume or release carbon dioxide in the process of photosynthesis. Students will record their data which will be used to conclude whether carbon dioxide was consumed or released by the elodea. Through class discussion of student data, students will learn that carbon dioxide was consumed during photosynthesis.

Students work in pairs to compare five aspects of an organism that reproduces sexually, asexually, or both sexually and asexually. The activity comes with a chart for the students to fill out and with information sheets on twelve organisms. As a class, students share their comparisons and generate a list of general characteristics for each mode of reproduction and then discuss the advantages and disadvantages of both. Included in the discussion are reproductive mechanisms and genetic variation.

This lesson focuses on torsion as a force acting upon structures. Students will have the opportunity to design something to withstand this force.

This is a hands-on activity to show that air takes up space even though you cannot see it.The goal is to understand that gas occupies space and relate it to real situations that prove it.

This course is an investigation to distinguish episodic memory, which is memory of personal events, from semantic memory, which is general knowledge independent of time and place.

Financial theory and empirical evidence useful when making investment decisions. Topics include: portfolio theory, equilibrium models of security prices (including the capital asset pricing model and the arbitrage pricing theory), the empirical behavior of security prices, market efficiency, performance evaluation, and behavioral finance.

Students learn about radar imaging and its various military and civilian applications that include recognition and detection of human-made targets, and the monitoring of space, deforestation and oil spills. They learn how the concepts of similarity and scaling are used in radar imaging to create three-dimensional models of various targets. Students apply the critical attributes of similar figures to create scale models of a radar imaging scenario using infrared range sensors (to emulate radar functions) and toy airplanes (to emulate targets). They use technology tools to measure angles and distances, and relate the concept of similar figures to real-world applications.

Uses primary sources to explore the impacts World War I had on the struggle for civil rights in Connecticut and America.

When students plot irrational numbers on the number line, it helps reinforce the idea that they fit into a number system that includes the more familiar integer and rational numbers.

The course will discuss the objectives and functions of water management systems for irrigation and drainage purposes. Analysing system requirements in terms of technical engineering constraints, management possibilities and water users (wishes and options) is central. This includes the design and operation of regulation structures, dams, reservoirs, weirs and conveyance systems; balancing water supply and water requirements in time and space is a main focus of analysis too.

This learning video addresses a particular problem of selection bias, a statistical bias in which there is an error in choosing the individuals or groups to make broader inferences. Rather than delve into this broad topic via formal statistics, we investigate how it may appear in our everyday lives, sometimes distorting our perceptions of people, places and events, unless we are careful. When people are picked at random from two groups of different sizes, most of those selected usually come from the bigger group. That means we will hear more about the experience of the bigger group than that of the smaller one. This isn't always a bad thing, but it isn't always a good thing either. Because big groups ''speak louder,'' we have to be careful when we write mathematical formulas about what happened in the two groups. We think about this issue in this video, with examples that involve theaters, buses, and lemons. The prerequisite for this video lesson is a familiarity with algebra. It will take about one hour to complete, and the only materials needed are a blackboard and chalk.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Let's face it: Some online spaces can be full of negative, rude, or downright mean behavior. But what counts as cyberbullying? Help your students learn what is -- and what isn't -- cyberbullying, and give them the tools they'll need to combat the problem.

In this activity, students conduct an investigation to purify water. They engineer a method for cleaning water, discover the most effective way to filter water, and practice conducting a scientific experiment. Through this activity and its associated lesson, student teams follow the steps of the engineering design process related to water treatment, as done by practicing engineers, including constructing and testing their designs.

To better understand electricity, students investigate the properties of materials based on their ability to dispel static electricity. They complete a lab worksheet, collect experimental data, and draw conclusions based on their observations and understanding of electricity. The activity provides hands-on learning experience to safely explore the concept of static electricity, learning what static electricity is and which materials best hold static charge. Students learn to identify materials that hold static charge as insulators and materials that dispel charge as conductors. The class applies the results from their material tests to real-world engineering by identifying the best of the given materials for moving current in a solar panel.

The web is full of photos, and even videos, that are digitally altered. And it's often hard to tell the difference between what's real and what's fake. Help your students ask critical questions about why someone might alter a photo or video in the first place.

The goal of this activity is to understand how techniques of persuasion (including background, supporting evidence, storytelling and the call to action) are used to develop an argument for or against a topic. Students develop an environmental case study for presentation and understand how a case study is used as an analysis tool.

Students will brainstorm ways that they use and waste natural resources. Also, they will respond to some facts about population growth and how people use petroleum. Lastly, students will consider the different ways that engineers interact with and use our natural resources.