Young scholars observe and solve examples of corresponding angle postulates, alternate interior angle theorems, and exterior and consecutive angles. They complete the Determining Angle Measure With Parallel Lines worksheet.

Young scholars explore exchange rates. They identify the units of currency of a number of countries. Students convert money amounts accurately. They graph currency fluctuations and interpret graphs.

Students examine and discuss typical linear equations, and the difference between a linear and nonlinear equation. They observe examples of linear equations and complete a worksheet.

Pupils perform a classroom activity of measuring the angular size of something from several distances. On the Internet, they obtain and examine images with various magnification factors and estimate the angular size of Andromeda.

Learners locate the many forests located in Oregon. In groups, they use the internet to research employment data on wood products made in the state. They discuss how looking at information presented in a different way can change their...

In this recipe worksheet, students will rewrite a Halloween cakes recipe that makes 12 cakes, so that it will make 16 cakes. Ingredient amounts are in metric units.

Learners use the digital camera, identify geometric shapes (in nature as well as man-made), and gain a better understanding of geometric vocabulary. They search for and recognize geometric shapes in unusual settings

Students investigate the concepts of differing gas prices and how they are set in different geographical areas. They conduct research about the economic concepts of supply and demand and predict the outcomes upon the prices of gasoline.

Eighth graders complete worksheets on reading the distance on maps in miles or kilometers. In this maps lesson plan, 8th graders use a calculator and ruler.

Young scholars map data on employment in wood products manufacturing in Oregon counties. In this Oregon forest lesson plan, students discover the percentage of people employed in the forest manufacturing industry. Young scholars create a...

Seventh graders study elapsed time, radioactive decay and half-life.  In this time machine lesson students complete several activities and view a presentation. 

Learn how to use fractions to interpret food labels and make healthy eating choices.

Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.

A collection of teacher resources to aid in teaching and reviewing ratio and proportion in math. There are worksheets, PowerPoint presentations, activities, and smartboard activities available for the teacher to download.

A guide to support parents as they work with their students in ratios and proportional relationships.

Provides examples and a video lesson that explains ratios and proportions and shows how to solve them.

In this video, Harry finds money on the sidewalk. He uses ratio, proportion, and some knowledge about shadows to return it to the rightful owner. In the accompanying classroom activity, students investigate whether there is a consistent...

In this Cyberchase media gallery, learn about ratio and proportion and how to use an algebraic shortcut to solve proportion problems. In the accompanying classroom activity, students play a game called the "Pom-Pom Nose Push," in which...

At the end of this lesson plan about ratio/proportion, learners will be able to recognize and apply ratios and proportions to solve real-life problems and solve for any unknown component.

Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.

Brush up on your math skills relating to proportions then try some practice problems to test your understanding.

In these KQED Lowdown infographics, explore how adult obesity rates in the United States, as measured by body mass index (BMI), have dramatically changed in the past half-century. A circular graph and a pictograph depict data by decade,...

This highly interactive resource uses the backdrop of digital photography to explore equivalent forms of 3-term ratios. Printable activities, solutions, and learning strategies are also provided.

Practice telling whether or not the relationship between two quantities is proportional by reasoning about equivalent ratios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...