In this lesson, students expand their understanding of solid waste management to include the idea of 3RC (reduce, reuse, recycle and compost). They will look at the effects of packaging decisions (reducing) and learn about engineering advancements in packaging materials and solid waste management. Also, they will observe biodegradation in a model landfill (composting).

Now you can start scaling your shapes to make your lamp look younger.

Now you are ready to start subdividing your own shapes with more than 4 points!

This unit on American Indians: By studying the regions of the United States and the cultures that live in each region, students are able to compare/contrast within regions and across regions how tribes used their environments, and their cultural and other contributions to American life.

Note that the emphasis here is on broader groups of tribes for each region with some instruction on specific tribes representing each region. In no way is this case study approach to learning about one tribe meant to be generalized to all tribes of that region. We understand that each tribe was and continues to be unique in its culture, practices, lifeways, and traditions.

The unit is focused on the examination of geography in terms of “place.” Students dive into inquiry to answer the compelling questions, “Where are we?” and “Who are we?” Through these two questions students will understand where they live and where people around the world live. Students will also dive into the term “culture” and define it through many characteristics. Students will examine and reflect upon their own culture and research different cultures of North America.

Coders use a variety of blocks and sprites to create an interactive story about giving a gift to an alien visiting Earth. The purpose of this project is to reinforce understanding of message blocks.

We need to be careful with the order of scaling and translation. But why?

Tree diagrams allow us to visualize these counting problems using any number of parts.

Okay we know how to calculate the touching point, great! Next let's think about how we can prove this is true.

Next let's build a blade of grass using a parabolic arc as a spine.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Historians estimate that there were about 7 million people on the earth in 4,000 BCE. Now there are about 7 billion! We write 7 million as 7,000,000. W...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: The tick marks on the number line are evenly spaced. Label them. Plot the following numbers on the number line: 85 940 2,316 5,090 7,784 Round each num...

On field, students have to image a given asteroid on two consecutive nights, producing two sets of images obtained over 10-15 minutes, each set separated by about 4-5 hours. In class, students have to process the images in order to measure the observed diurnal parallax and then determine the corresponding asteroid distance.

Let's breathe some life into our ball using a key animation principle: squash and stretch.