Before iPhones and calendars, how did humans determine the seasons of the year? Middle school scientists discover how to use shadows to determine the time of year in an enlightening interactive. Pupils manipulate the sun and examine the...

Examine the unique graphs coined broken-line graphs. Using the phase change of water for data, learners answer questions related to the temperature and energy at different times in the cycle of the phase change. Questions focus on the...

Limits are made easy through graphs and tables. An easy-to-use interactive lets users change a function on a coordinate plane. They relate graphs and tables to the limit at a specific value.

There's no easier test than the vertical line test. Learners drag a vertical line across the graphs of several relations in an interactive. They answer a set of challenge questions that focus on whether the graphs represent functions.

There's no restriction to how much your class can learn about domain and range. Users of an interactive adjust the radius of a circle to see its effects on the area. They note how restrictions in the domain (radius) relate to...

Use variable value sliders to understand variance. The interactive shows four whole numbers, their mean and deviation. Using the information, pupils find the variance of the numbers and respond to question related to the understanding of...

Learn to find the slope through a single point. The interactive provides a visualization of how to find the slope of a tangent line. With the aid of the visualization, pupils see the definition of the derivative in action. Class members...

Use the area of polygons to calculate the area between curves. Pupils calculate areas under income and expense curves by filling the space with squares and right triangles. Using that information, they determine the profit related to the...

Show budding mathematicians how to model a diminishing bacteria colony two ways—graphically and algebraically. Using the coordinate axis, pupils create a graph to represent the decay of a bacteria colony. They determine the number of...

Using a slider, scholars build triangular numbers and their associated rectangles and use the geometric display to find the pattern to determine the next triangular number. They then relate that number to the area of the rectangle to...

One-to-one means the answer is simple, right? Given four graphs, pupils use a vertical line to test each graph to find out if they are one-to-one. By using the resource, learners realize that not all one-to-one relations are functions....

Here's a fresh take on a mythology unit. Use the myths of the Mayan and Aztec peoples of Mesoamerica instead of the more traditional Greek and Roman stories. This abstract suggests possible approaches and resources that can be...

Students practice role-playing to use relative clauses and to describe people. In this ESL instructional activity, students use verbal expressions to describe the actions of people in an office. Students work with a partner to initiate...

Students who are in an English learning classroom review everyday conversation by playing a speed dating-style game in which they sit back-to-back with another person, talk to them, and then in a relatively short amount of time, move...

The link to Ideas for Resources: Geology Manual is no longer valid, but the link to How to Teach Using Role-Playing does. Choose a realistic problem related to your focus topic, assign roles, and send your geology learners off to...

Hit all the basics with this lesson, focusing on weather, greetings, and dates! Start by singing a weather related song ("Quel temps fait-il by Barbara MacArthur is suggested), and then read a story about getting ready for school. The...

First and second graders explore writing conventions. They add question marks or periods to the end of teacher generated sentences on sentence strips. They locate punctuation marks in poems and write original sentences using appropriate...

Students engage in a study about the holiday of a birthday with the help of using children's literature. They make cognitive connections of using the characters of the book and relating them to the personal celebration of a birthday.

In this Winter Olympics vocabulary skills worksheet, students match the 12 Olympics-related terms in the word bank to the appropriate definitions.  

In this Winter Olympics worksheet, students complete a decoding puzzles with the help of a word box at the bottom of the page. All words written "in code" are related to the Winter Olympics.

In this Halloween vocabulary worksheet, students select the best word to complete the sentence. They are challenged by the complex options that all relate to Halloween.

Upper graders explore the Fibonacci sequence. They examine the characteristics of the Fibonacci sequence, list the properties of the sequence and determine how it connects to Pythagorean Triples. Related thinking questions are included.

Children discover basic addition and subtraction facts. They play an online game in which they practice addition and subtraction facts. This could be a perfect computer lab activity for your students to engage in.

Students identify perceptions towards Asians widely held by the American public through the analysis of political cartoons from the 1940's. They recognize the ramifications of such perceptions on Asian American and Arab American.