Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

## Area and Perimeter

Create several rectangles with areas of 16 square units and calculate the perimeter. Predict how the length and width of the rectangle affects the perimeter.

## Area Model for Multiplication

Area models offer a visual representation of mathematical operations. Here you will use area models to multiply and reduce fractions.

## The Area Model

Use area models to find either the greatest common factor or the least common multiple of two numbers.

## Argentina

Practice some of the vocabulary and grammar covered in the Argentina episodes of Destinos.

## Arm Span and Height Measurements

Measure your arm span and height. See how your measurements compare to others when your data is added to a data table and corresponding scatter plot.

## Arrays and Fractions

What opportunities for learning are offered by having students work on a problem using both arrays and fractions? Decide whether or not using an array is the best way to solve a problem.

## The Art of Creating a Poll

You are the head of the Public Relations committee for your hometown Waste Removal Department. Create a poll for your department to find out how the public feels about waste incineration.

## Artifacts & Fiction Pair Finder

Pair artifacts with appropriate literary texts, and find tips for using them together in the classroom by selecting movements and disciplines with this handy tool.

## Assess a Peer Conference

Watch a video of two student peer conferences and compare your evaluation of those conferences to another teacher's.

## Assessing Comprehension

Read a fable and listen as two students retell the story in their own words. Assess their comprehension using the Retelling Guide provided.

## Assessing Student Letters

Assess two drafts of studentsâ€™ letters using criteria presented as a four-point-scale rubric.

## Balancing Excesses and Deficits

Create a line plot [with dots] to represent stacks of coins. Then rearrange the dots to form different line plots and watch what happens to the mean.

## Balancing Sources

Review primary sources that examine historical events. Choose several sources that represent different perspectives of the era and create a narrative that represents a balanced view.

## Bald Eagles

Track bald eagle migration. Report your sightings and observations to the bald eagle tracking map.

Travel back to the Renaissance period as a Portuguese spice trader with a large sailing ship. Success brings riches, failure brings ruin, so carefully decide which route, crew size, and goods to trade, and where to stop along the way.

## Bridging World History Archive

View more than 1500 items, including photos, documents, maps, and other items, ready for your research and classroom use. Browse by unit title, region, and/or time period.

## British and Metric Conversions

Learn to convert measurements from metric to English and vice versa, by learning the symbols used in both systems for properties such as mass, length, volume, and temperature.

## Browse Artwork

Take a thematic approach to art history and appreciation. Use this tool to browse through 223 pieces of artwork by theme, period, region or medium.

## Build a Bridge Between Disciplines

Build a bridge between two disciplines by identifying a connecting concept, or idea that has value in both disciplines. Complete the structure by adding instructional activities that build students' understanding of the concept, within and across disciplines.