This workshop session, part of a free online course developed for elementary and middle school teachers, explores the mean in depth. Participants work together to investigate the mean as the balancing point of a data set and come to understand how to measure variation from the mean. Video segments, interactive practice, problem sets, and discussion questions involve participants in active exploration.
Author(s): WGBH Educational Foundation

Tessellate!
This Java applet enables students to create tessellations, which are patterns on a plane that do not overlap. The student selects a hexagon, rectangle, or triangle to distort by dragging edges and the newly formed corners. Users can select colors for the pattern, and a button displays information in a second window. The window lists the coordinates of the vertices, angle measures, side lengths, area, and perimeter for the shape. From the applet page, What, How, and Why buttons open pages that ex
Author(s): Shodor Education Foundation

A Maths Dictionary For Kids
An animated, interactive dictionary for students which explains over 400 common mathematical terms in simple language. Includes definitions, animated examples, interactive activities, practice and lots of different calculators.
Author(s): Math Forum

Early algebra, early arithmetic : class materials
This site contains access to over 50 lessons developed as part of a research project that examines how students develop algebraic thinking. The lessons offer teachers in grades 1-6 and parents ideas for situating arithmetic in the context of algebra. The aim of the lessons is to inspire teachers to try new approaches to teaching mathematics. The first lesson is very detailed and provides an introduction to the concepts in later lessons. The use of lessons in sequential order allows students to s
Author(s): TERC,Tufts University

Etymologies of Algebra, Geometry, Trigonometry
What are the origins and roots of the words geometry, algebra, and trigonometry?
Author(s): Math Forum,Nikki

Ecological Footprint: Only One Planet
This two-minute sound segment discusses the concept of your ecological footprint. This is the amount of nature it takes to support your lifestyle. The speaker explains that if we divide up the total ecologically productive space on the planet by the number of people, what we get is five acres per person. In the United States, on average, we use about twenty-five to thirty acres per person to provide all of our services. This site is from an archive of a daily radio program called Pulse of the Pl
Author(s): Creator not set

3.2 Removal of iron
This unit looks at the methods that have been developed by organisms for the uptake, transport and storage of iron: a process made more complicated by the insolubility of its oxides and hydroxides. You will examine iron storage in mammals, including humans, is achieved by ferritin, which stores iron as a hydrated iron (III) oxide â€“ an example of biomineralisation.
Author(s): The Open University

2.14 Summing up
This unit is concerned with macroevolution â€“ the patterns and processes of evolution above the species level. A crucial consideration in macroevolutionary studies is that of the evolutionary relationships (phylogeny) of the organisms in question. The unit begins with an introduction to the scope of macroevolutionary studies and illustrates methods of reconstructing phylogeny, from both morphological and molecular data.
Author(s): The Open University

2.2 Darwin, Linnaeus and Simpson
This unit is concerned with macroevolution â€“ the patterns and processes of evolution above the species level. A crucial consideration in macroevolutionary studies is that of the evolutionary relationships (phylogeny) of the organisms in question. The unit begins with an introduction to the scope of macroevolutionary studies and illustrates methods of reconstructing phylogeny, from both morphological and molecular data.
Author(s): The Open University

This unit is concerned with macroevolution â€“ the patterns and processes of evolution above the species level. A crucial consideration in macroevolutionary studies is that of the evolutionary relationships (phylogeny) of the organisms in question. The unit begins with an introduction to the scope of macroevolutionary studies and illustrates methods of reconstructing phylogeny, from both morphological and molecular data.
Author(s): The Open University

4.5 Fibre in LANs
Optical-fibre communications became commercially viable in the 1970s and innovation continues today. This unit will illustrate how very high data rates can be transmitted over long distances through optical fibres. You will learn how these fibres are linked, examine the technology used and assess the future direction of this continually developing area of communication.
Author(s): The Open University

Don't Crack Humpty
Student groups are provided with a generic car base. The groups then design a device/enclosure that will protect an egg on or in the car as it is rolled down a ramp at increasing slopes. Students will be expected to perform basic mathematical calculations using their data.
Author(s): K-12 Outreach Office,

4.4 Manchester Literary & Philosophical Society and Board of Health
Childcare, education, working conditions, healthcare, crime â€¦ these issues are hotly debated in today's society. They are also issues that Robert Owen, seen by some as a visionary and by others as a knave and a charlatan, sought to address in the early 1800s. This unit uses a series of essays written by Owen to explore the ideas of this important and controversial figure.
Author(s): The Open University

Problem solving with design
Students, faculty and other experts from the U of M gather to tackle some of the biggest health issues facing society - obesity and smoking - using "design thinking" to solve those issues.
Author(s): No creator set

ConjugationsBack
Author(s): No creator set

Spuduka's Pillbox Log Upper Thames set
Pillboxes that are along the Thames from Appleton To Lechlade.
Author(s): Bill Nicholls

The Strongest Pump of All
In this lesson the students will learn how the heart functions. Students will be introduced to the concept of action potential generation. The lesson will explain how action potential generation causes the electrical current that causes muscle contraction in the heart. Students will be introduced to the basic electrical signal generated by the heart; P, QRS, and T waves. The lesson will approach the heart from an engineering standpoint and encourage students to design ways to improve heart funct
Author(s): Department of Biomedical Engineering,