The solutions unit consists of the following: General points for discussion relating to the teaching of the mathematical content in the activities. Step-by-step mathematical solutions to the activities. Annotations to the solutions to assist teachers in their understanding the maths as well as teaching issues relating to the mathematical content represented in the activities. Suggestions of links to alternative activities for the teaching of the mathematical content represented in the activities.

An interactive applet and associated web page that demonstrate acute angles (those less than 90 deg). The applet presents an angle (initially acute) that the user can adjust by dragging the end points of the line segments forming the angle. As it changes it shows the angle measure and a message that indicate which type of angle it is. There a software 'detents' that make it easy capture exact angles such as 90 degrees and 180 degrees The message and angle measures can be turned off to facilitate classroom discussion. The text on the page has links to other pages defining each angle type in depth. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right. The applet shows a triangle that is initially acute (all angles less then 90 degrees) which the user can reshape by dragging any vertex. There is a message changes in real time while the triangle is being dragged that tells if the triangle is an acute, right or obtuse triangle and gives the reason why. By experimenting with the triangle student can develop an intuitive sense of the difference between these three classes of triangle. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

This Western Mining History database uses Mineral Resources Data System to list known Colorado historical mines by county. Each county site has links to the known mines within its borders. Some are known and named, others are unnamed. Mines should be assumed to be on private property unless other research is conducted. Data provided for each mine site include: Name, State, County, Elevation, Primary Mineral Mined, Latitude and Longitude and a link to Google Maps. Photos are provided where available. Additional information for some Mines are satellite photos, and ownership, business and historical records. Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a great database for student historical research or data and statistics classes. Consider becoming a member or making a donation to help further the work of the site.

An interactive applet and associated web page that show the concept of adjacent angles (two angles that share a common leg). The applet shows three line segments with a common endpoint. The user can move the center one and see that the angles on both sides (the adjacent angles) of it are affected. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, students can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

An interactive applet and associated web page that demonstrate the the concept of adjacent arcs. The user can 3 drag points around a circle that define the endpoints of two adjacent arcs. Web page has the properties of adjacent arcs. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

As faculty, you assess textbooks against a set of criteria that reflects your long experience and knowledge of student needs. You do the same with Open Textbooks, but there are a few additional considerations.

This reader contains nine original stories about healing, discovery, survival, relationships, justice, and connections to the land explored through the lens of the plant world. These stories, written specifically for adults, are designed to accompany the BC Reads: Adult Literacy Fundamental English – Course Pack 1. This level 1 reader, one of a series of six readers.

Consumers see or hear thousands of advertisements each day. The April 2017 issue of Page One Economics: Focus on Finance reviews advertising history and strategies ads use to create demand and influence consumer tastes and preferences.

Our Teacher's Guide offers a collection of lessons and resources for K-12 social studies, literature, and arts classrooms that center around the achievements, perspectives, and experiences of African Americans across U.S. history. Below you will find materials for teaching and learning about the perspectives of slaves and free African Americans during the American Revolution, the work of the Freedman’s Bureau during and after Reconstruction, the artistry of Jacob Lawrence, the reality faced by African American soldiers returning home after fighting in WWI, the songs and efforts of the Freedom Riders during the long civil rights movements, and the works of Lorraine Hansberry, Langston Hughes, Zora Neale Hurston, and Maya Angelou.

AAS 267, African American Literature, is a survey course that will take us from the early days of enslavement to the present. We will read, analyze, and discuss literary texts written by African Americans, paying particular attention to the political, historical and social context that informs these texts.

Given the secondary position of persons of African descent throughout their history in America, it could reasonably be argued that all efforts of creative writers from that group are forms of protest. However, for purposes of this discussion, Defining African American protest poetrysome parameters might be drawn. First—a definition. Protest, as used herein, refers to the practice within African American literature of bringing redress to the secondary status of black people, of attempting to achieve the acceptance of black people into the larger American body politic, of encouraging practitioners of democracy truly to live up to what democratic ideals on American soil mean. Protest literature consists of a variety of approaches, from the earliest literary efforts to contemporary times. These include articulating the plight of enslaved persons, challenging the larger white community to change its attitude toward those persons, and providing specific reference points for the nature of the complaints presented. In other words, the intention of protest literature was—and remains—to show inequalities among races and socio-economic groups in America and to encourage a transformation in the society that engenders such inequalities. For African Americans, Some of the questions motivating African American protest poetrythat inequality began with slavery. How, in a country that professed belief in an ideal democracy, could one group of persons enslave another? What forms of moral persuasion could be used to get them to see the error of their ways? In addition, how, in a country that professed belief in Christianity, could one group enslave persons whom Christian doctrine taught were their brothers and sisters? And the list of “hows” goes on. How could white Americans justify Jim Crow? Inequalities in education, housing, jobs, accommodation, transportation, and a host of other things? In response to these “hows,” another “how” emerged. How could writers use their imaginations and pens to bring about change in the society? Protest literature, therefore, focused on such issues and worked to rectify them. Poetry is but one of the media through which writers address such issues, as there are forms of protest fiction, drama, essays, and anything else that African Americans wrote—and write.

Western Mining History presents a short history of the famous gunfight in the OK Corral, an iconic legend of the Old West. Western Mining History is an historical site that provides databases, information on mining, mining towns, gold and Photos and maps of the western United States. Consider becoming a member or making a donation to help further the work of the site.

After the Ice: Our Food discusses changes in historic food sources for Arctic Native Americans. Global climate change is altering yearly cycles of both ice coverage and depth in the Bering Sea. Changes in the ice affect the way local native groups hunt in order to feed their community.

This 7-minute video illustrates how the historic homeland for Arctic Native Americans is being affected by climate change. Shorefast ice and pack ice are present for a shorter part of the year. This has profound affects on the way of life in the Bering Sea region, to the point where the community may have to relocate.

This video discusses how the historic way of life for Arctic Native Americans has changed. Global climate change is altering the ice cycle (yearly coverage, depth, and persistence) in the Bering Sea and weather patterns. Changes in the ice affect the way local native groups are able to hunt for food, and maintain their community.

This video discusses ways that communities can prepare for air quality changes that will occur due to rising global temperatures.

Al-Bab is a portal website designed to introduce non-Arabs to Arab culture by providing links to news sources, country profiles, articles, and a blog on Middle East current events. There are also specific links related to learning Arabic: dictionaries, language classes, textbooks, and other information pertaining to the study of Arabic. A free e-book, The Birth of Modern Yemen, is available for download.

This Western Mining History database uses Mineral Resources Data System to list known Colorado historical mines by county. Each county site has links to the known mines within its borders. Some are known and named, others are unnamed. Mines should be assumed to be on private property unless other research is conducted. Data provided for each mine site include: Name, State, County, Elevation, Primary Mineral Mined, Latitude and Longitude and a link to Google Maps. Photos are provided where available. Additional information for some Mines are satellite photos, and ownership, business and historical records. Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a great database for student historical research or data and statistics classes. Consider becoming a member or making a donation to help further the work of the site.

In the story, Alexander, Who Used to Be Rich Last Sunday, Alexander receives a dollar from his grandparents that he plans to save, but he spends it all, a little at a time. In this lesson, students count by twos to fill a container with 100 pennies. They are asked whether 100 pennies is the same amount of money as one dollar. They listen to the story and as Alexander spends his money, students come up and remove the correct number of pennies from a container. At the end of the story, students are again asked if 100 pennies is the same amount of money as one dollar. Students discuss the choices that Alexander made and give advice on how he could save his money to reach his goal of buying a walkie-talkie.