The major purpose of this lesson is to promote the learning of eye function by associating eye problems and diseases to parts of the eye that are affected. Included in this module are discussions and activities that teach about eye components and their functions. The main activity is dissecting a cow eye, which in many high schools is part of the anatomy curriculum. This lesson extends the curriculum by discussing eye diseases that students might be familiar with. An added fun part of the lesson is discussion of what various animals see.

This short video and interactive assessment activity is designed to teach second graders about which amount is not equal to a given amount of money?.

This video lesson will introduce students to algorithmic thinking through the use of a popular field in graph theory—social networking. Specifically, by acting as nodes in a graph (i.e. people in a social network), the students will experientially gain an understanding of graph theory terminology and distance in a graph (i.e. number of introductions required to meet a target person). Once the idea of distance in a graph has been built, the students will discover Dijkstra's Algorithm. The lesson should take approximately 90 minutes and can be comfortably partitioned across two class sessions if necessary (see the note in the accompanying Teacher Guide). There are no special supplies needed for this class and all necessary hand-outs can be downloaded from this website.

Beavers are generally known as the engineers of the animal world. In fact the beaver is MIT's mascot! But honeybees might be better engineers than beavers! And in this lesson involving geometry in interesting ways, you'll see why! Honeybees, over time, have optimized the design of their beehives. Mathematicians can do no better. In this lesson, students will learn how to find the areas of shapes (triangles, squares, hexagons) in terms of the radius of a circle drawn inside of these shapes. They will also learn to compare those shapes to see which one is the most efficient for beehives. This lesson also discusses the three-dimensional shape of the honeycomb and shows how bees have optimized that in multiple dimensions. During classroom breaks, students will do active learning around the mathematics involved in this engineering expertise of honeybees. Students should be conversant in geometry, and a little calculus and differential equations would help, but not mandatory.

The aim of this lesson is to introduce the concept of Neutralization and its application in our daily lives. Students are encouraged to construct their knowledge of Neutralization through brainstorming sessions, experiments, and mind mapping. This video lesson presents a series of stories relating to Neutralization—beginning with a story of a girl being cured from a stomach ache with the help of Neutralization. Prerequisites for this lesson are knowledge of the basic concept of Neutralization, chemical equations and the pH indicator scale. The lesson will take about 50 minutes to complete, but you may want to divide into two classes if the activities require more time.

A brief video where OER experts give their reasons for working in the field of Open Educational Resources. Primary reasons include empowering teachers, equalizing access to education, reducing teachers' worries about copyright, reducing educational costs, and facilitating the open flow of information.

This lesson is an introduction to Multiple Regression Analysis or MRA, a statistical process used widely in many professions to estimate the relationship among variables. The aim of this video is to make it easier for students to understand the introduction to the concept of MRA based upon a property valuation setting. In order to facilitate students’ understanding of this, a scaffolding method is used whereby students are first exposed to basic equations. Then they will be introduced to the concept of variables, teaching them to calculate property value based on only 2 variables. Their understanding is further enhanced by exposing them to multiple variables related to property valuation. Finally, they are asked to calculate property value based on multiple variables. It is shown in this video that finding the value of two variables is possible using the paired comparison method, but that the same method cannot be applied if we have more than 2 equations; that is when Multiple Regression Analysis is needed. MRA can solve problems related to more than 2 equations. A prerequisite for students is an understanding of basic statistics such as total, average, mod, mean and median.

This art history video discussion examines Andy Warhol's Campbell's Soup Cans, 1962 (The Museum of Modern Art).

With an often unexpected outcome from a simple experiment, students can discover the factors that cause and influence thermohaline circulation in our oceans. In two 45 minute class periods, students complete activities where they observe the melting of ice cubes in saltwater and freshwater, using basic materials: clear plastic cups, ice cubes, water, salt, food coloring, and thermometers. There are no prerequisites for this lesson but it is helpful if students are familiar with the concepts of density and buoyancy as well as the salinity of seawater. It is also helpful if students understand that dissolving salt in water will lower the freezing point of water. There are additional follow up investigations that help students appreciate and understand the importance of the ocean’s influence on Earth’s climate.

This art history video discussion examines Andrea Mantegna's "Dormition (or Death) of the Virgin", c. 1462, tempera on panel, 54 x 42 cm, 21.26 x 16.54 in (Museo del Prado, Madrid).

This art history video discussion examines the Circle of the Master of Pedret, The Wise and Foolish Virgins, south apse of the Epistle, Sant Quirze de Pedret, late 11th century to the beginning of 12th century, fresco transferred to canvas (Museu Nacional d'Art de Catalunya, Barcelona).

This short video and interactive assessment activity is designed to teach second graders an overview of money.

Yoruba‡ YŽ Mi is an interactive, communicative, introductory, multimedia program intended to provide college/university students with basic listening, speaking, reading, and writing skills of language learning in Yoruba‡. It exposes the learner not only to Yoruba‡ language in meaningful situations but also to the culture of the Yorb‡-speaking people of South-western Nigeria. It contains effective techniques for teaching and learning Yorb‡ including tones, and is user-friendly in its approach.

This lesson introduces students to the concepts of evolution, specifically the evolution of humans. So often our students assume that humans are well adapted to our environments because we are in control of our evolutionary destiny. The goal is to change these types of misconceptions and get our students to link the concepts learned in their DNA, protein synthesis, and genetics units to their understanding of evolution. Students will also discover that humans are still evolving and learn about the traits that are more recent adaptations to our environment. The lesson is designed to take two one-hour class periods to complete. The activities will allow students to draw connections between environmental pressures and selected traits, both through data analysis and modeling. Most activities can be done without any special materials, although the Modeling Natural Selection activity needs either a tri-colored pasta, or tricolored beans, to be completed effectively.

This art history video discussion looks at Vincent van Gogh's "The Bedroom", 1889, oil on canvas (Art Institute of Chicago).

This art history video discussion looks at Hugo van der Goes' "The Adoration of the Kings" (Monforte Altar), c. 1470, oil on oak (Gemaldegalerie, Staatliche Museen zu Berlin).

This art history video discussion looks at Rogier van der Weyden's "Crucifixion Triptych", c. 1445, oil on oak, center panel (Kunsthistorisches Museum, Vienna).