Euclidea is an interactive game that allows students to build constructions using a virtual straight edge and compass tool. Students find their way through various tasks to unlock new ones.

This is a presentation of the history, development, and philosophical significance of non-Euclidean geometry as well as of the rigorous foundations for it and for elementary Euclidean geometry, essentially according to Hilbert. Appropriate for liberal arts students, prospective high school teachers, math. majors, and even bright high school students. The first eight chapters are mostly accessible to any educated reader.

This is an engaging textbook for a college geometry course. It would be an appropriate text to use in a course for prospective middle and high school teachers. It covers, as the title suggests, both Euclidean and transformational geometries in some depth. For instructors requiring an introduction to axiom systems, the Appendix is a solid introduction to Basic Notions, including a set of axioms that are equivalent to Euclid’s Five Postulates.

Planar Euclidean Geometry including triangles, polygons, circles, area, and constructions with a compass and straightedge. Emphasis is placed on the role of definitions and proving theorems via the axiomatic method.

This edition of Euclid’s Elements presents the definitive Greek text—i.e., that edited by J.L. Heiberg (1883– 1885)—accompanied by a modern English translation, as well as a Greek-English lexicon.

This brief article on Archimedes describes some of his practical inventions, his love of pure mathematics, and his quirkiness. Many links to related topics are included as well as a link to a printable page.

This project discovers the history of Modern Europe, starting at the Hundred Years War and ending at the present time.
A chronological perspective of history is attempted within this text. Although this is the case, it is also important to understand patterns within European History, therefore chapters will attempt to cover a breadth of material even though their titles might be that of a specific pattern in history rather than a time period.

This is a lesson with two parts.Part one is to learn about the historic and cultural significance of various European Structures.Part two is practice in good reasearch habits. Student will need to find and use information they research themselves.Photo by Corbett Campbell  

Artist Evah Fan makes drawings, zines and more in a style that is influenced by wordplay and folk art techniques. She tells visual stories through her interpretation of words she finds tantalizing with their multiple meanings. She emphasizes that style is not a skill that can be found overnight, but rather developed over years and realized in retrospect.

Recognize misinformation and stop it in its tracks by using RumorGuard’s 5 Factors for evaluating credibility of news and other information. This classroom poster displays the 5 Factors alongside “Knows” and “Dos” for evaluating credibility.

Need your students to do some research and want to make sure that they know how to find credible sources? There is the perfect Google for Education Applied Digital Skills Lesson for that!  Thumbnail Photo Credits: "Keyboard and Encyclopedia" by brad.rourke is licensed with CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/ 

Students will compare two websites (one obviously more credible than the other) and evaluate them using the "CRAP checklist." They will look at factors like currency, reliability, accuracy, and purpose.

The Big6 is a six-stage model to help anyone solve problems or make decisions by using information. Students can use this model to guide them through the research process. This resource helps students evaluate their research skills using the Big6 model.

In this activity, students will analyze Benjamin Franklin’s body of work to better understand his contribution in the key areas of academics, innovation, and diplomacy during the Revolutionary War Era. Students will choose and research one of Franklin’s primary areas of work alongside similar or related works by others that preceded, coincided with, or may have influenced Franklin’s achievements. Students will examine the historical, political, and social circumstances that shaped Franklin’s work and made it possible for him to flourish. Students will investigate how Franklin’s achievements have been built upon by other inventors, politicians, diplomats, and writers since Franklin’s lifetime.

The Big6 is a six-stage model to help anyone solve problems or make decisions by using information. Students can use this model to guide them through the research process. This page of the Big 6 website is a guide to help you develop Big6 units for your curriculum standards or objectives.

This lesson introduces students to evaluating evidence on social media and provides students with an opportunity to practice evaluating evidence on Twitter and Facebook. Note: A free educator account is required to access these materials.

The goal of this Illustrative Mathematics task is to use properties of exponents for whole numbers in order to explain how expressions with fractional exponents are defined.

Practice working with elementary documents by comparing accounts of the Chicago Fire and testing the credibility of a Civil War diary.