This resource will assist students who are having a difficult time with estimation.  The interactive site gives examples of how to estimate and strategies in how to estimate.  The site also has printed materials for the students to use for practice.  An assessment is also included.

This lesson is designed to help students develop strategies for solving optimization problems. Such problems typically involve using limited resources to greatest effect, as in, for example, the allocation of time and materials to maximize profit.
Before the lesson, students attempt the problem individually. You then review their work and formulate questions for students to answer in order to improve their solutions.At the start of the lesson, students work alone answering your questions.Students are then grouped and engage in a collaborative discussion of the same task. In the same small groups, students are given sample solutions to comment on and evaluate.In a whole-class discussion, students explain and compare solution strategies seen and used.Finally, students revise their individual solutions and comment on what they have learned.
Materials required
Each individual student will need a copy of the  task, some plain paper, a calculator, and a copy of the How Did You Work? questionnaire.Each small group of students will need copies of the Sample Responses to Discuss.Graph paper should be kept in reserve and used only when necessary or requested.
Time needed
Approximately 15 minutes before the lesson, a 1-hour lesson, and 10 minutes in a follow-up lesson.

This applet allows the user to investigate the mean, median, and box-and-whisker plot for a set of data that they create. The data set may contain up to 15 integers, each with a value from 0 to 100.

This applet allows the user to select the number and height of plants or to name a different item data have been collected about to experiment with to find the total height, mean, median, mode, range, variance, and deviation.

This lesson is an inquiry-based guide and assessment of a web-based interactive simulation which allows students to discover the patterns of Mendelian inheritance through a process of predictions, simulations, and conclusions.

Power point, note sheet and worksheet to use as an introduction to Punnett Suqares and Mendelian Genetics.

In 1924, Congress and President Calvin Coolidge drastically restricted immigration to the U.S. by placing most countries on a strict quota system. Mexico was excluded from these restrictions. In this same period, however, Mexicans in the U.S. commonly faced discrimination and even racial violence. In this lesson, students read six historical documents to answer the central historical question: Were Mexicans welcome in the United States in the 1920s?

From the site:
Developed for use in middle and high school classrooms, Mission US engages students in the study of transformational moments in American history. Each mission consists of an interactive game and a set of curriculum materials that are aligned to national standards and feature document-based activities. The game immerses players in rich, historical settings and then empowers them to make choices that illuminate how ordinary people experienced the past. The Educator's Guide provides a wealth of resources and activities for both teachers and students, including primary source documents that show the broader social, political, and economic context of events and perspectives featured in the game.

Mixtures allows the user to explore percent problems with two sets of circles. Each set of circles can have both colored and / or uncolored circles. The number of colored circles represents the percent of each pile. The user can select from a four modes: Exploration, Unknown Pile, Unknown Percent, or Unknown total.

Using oxygen movement through urchins to bridge human and ecological homeostasis units.  Let's students become creative and use their artistic expression to show their knowledge.  

More Than Sad is a comprehensive mental illness and suicide prevention resource that addresses the issue of teen depression, teen suicide, and helping a friend in need. This resource includes a 25-minute video showcasing multiple students who are in a mental health crisis along with teacher and student supplemental lesson materials. Students will also be introduced to the idea that a teen can feel "more than sad" and when to seek help if they think they are in fact dealing with a mental illness. This resource clearly articulates the difference between "normal" mental health thoughts and feelings and "not-so-normal" thoughts and feelings. 
This resource can be co-taught with a school counselor or other mental health professional. There are resources for parents, teachers, and students. The resource also provides many external supports and resources for more information related to mental health, mental illness, and suicide.

This resource is a teachers physical education webpage.  On his webpage he has 30 instructional videos of different jump rope skills.  The skills vary in difficulty so every student can find success and challenge.  This allows students to work at their own level and pace to complete skills.

Divide the class into six equal(ish) groups. Each group randomly is assigned one of the six Disney Theme Parks around the world. They will develop a presentation/infomercial as to why people should visit their park. They will also create a one page magazine ad for their park. In addition, they will develop a Top Ten list of what else families might do in that city other than the Disney park.

My Next Move is an interactive tool for job seekers and students to learn more about their career options. My Next Move has tasks, skills, salary information, and more for over 900 different careers. Users can find careers through keyword search; by browsing industries that employ different types of workers; or through the O*NET Interest Profiler, a tool that offers personalized career suggestions based on a person's interests and level of work experience.

This Three-Act task shows students a video of how Dan messed up his Nana's chocolate milk proportions. Using a double number line, students try to find ways to fix the mistake using different ratios.

Teachinghistory.org (National History Education Clearinghouse) offers resources to teachers in multiple ways.  Three sections outline teaching materials, history content, and best practices in teaching history.  There are links for elementary, middle, and high school teachers, with everything from complete lesson plans to general outlines of historical events and skills.  You can also access research on the state of history education in the country, as well as a blog and the teachinghistory.org community.  

This lesson gives background to the rise of the National-Socialist German Workers' Party Party (Nazi Party) and in particular to their annexation of Austria through a powerpoint.  It then asks students to analyze three primary source documents to act as evidence in answering an historical question: How did the Nazi party convince 99% of Germans to vote in favor of the annexation of Austria?  Student then write a short argument based on their understanding of the texts and visuals.

Chemistry lesson activities involving VSEPR and electron transitions.  This apply directly to quantum physics.