The ancient Mayans had a complex calendar and number system with a rich history. In fact, the date 12/21/2012 was the center of much controversy as to whether or not it was the end of time. It wasn't the end of time, but...

Students are introduced to the normal distribution and examine the bell curve controversy.

Pupils explore the concept of the bell curve. In this bell curve instructional activity, students discuss the controversy associated with the bell curve. Pupils use an applet to explore a normal distribution. Students discuss mean,...

This lesson is a compilation of interdisciplinary, technology-infused activities that focus on the often complicated and sometimes controversial issues related to toxic chemicals in children's environment. Special emphasis is placed on...

A series of independent learning activities teaches learners about global warming as it relates to economics and industrialization. The culminating project requires them to create a multimedia presentation identifying the problems,...

Imagine you have money you want to save ... where do you put it?  Pupils investigate the similarities and differences of banks and credit unions as they determine where exactly to place their hard-earned money. Through a WebQuest,...

Life's not fair, but decisions can be. The 17th installment of a 21-part module teaches learners about fair decisions. They use simulations to develop strategies to make fair decisions.

Learners are introduced to the concepts of the normal curve, skewness and the standard deviation. They discuss how the normal distribution has been used and misused to support conclusions.

In this ESL vocabulary worksheet, students read 10 sentences that have a missing word or phrase. From 4 choices of similar words, students select the best answer to make the sentence correct. This is intended for ESL students but is...

Future environmental scientists compare data from two different conservation strategies. Alone this lesson is sufficient, but as part of the Exploring Biomes unit produced by the Arizona Fish and Game Department, it becomes top-notch. 

Consumers explore scientific notation as it relates to the real world. In this algebra instructional activity, mathematicians convert Gigabytes in to scientific notation to see if they are being cheated. They differentiate between base...

Through the use of an interactive Web site, students explore C-14 and C-14 dating. Then students analyze an article written about the C-14 dating of the Shroud of Turin and draw conclusions.

Students consider the advantages and disadvantages of various sampling techniques. They define a simple random sample and identify possible sources of bias in other types of samples. Answer Key included.

In this black hole worksheet, students read about the black hole in the center of the Milky Way Galaxy called Sagittarius A and observe a Chandra image of the area where the black hole exists. Students solve two problems which include...

Students explore the concept of sampling techniques. In this sampling techniques lesson, students identify possible sources of bias in situations such as phone polls, supermarket surveys, and drawing names from a phone book. Students...

In this American Presidents worksheet, students match the names of 25 Presidents with a phrase that describes an event in their term. This page begins with number 51 and goes to number 75.

Students are introduced to the Monte Hall Paradox and the storm of controversy it provoked when it appeared in the Ask Marilyn column of Parade Magazine. The letters and testimonials challenge students and generate animated classroom...

Find out exactly what a natural number is and what some of the controversy is over the definition.