Harmless Holder

Spread the message of recycling while teaching your English language learners new vocabulary and practicing verb tenses. Included here are four lesson plans for each level (beginning, intermediate, and advanced) as well as accompanying...

Most species of animals include a variety of fur or hair color, but why? Scholars watch a video about a changing environment for mice. As the rocks around them change hues, different colors of mice begin to thrive. Discussion questions...

Save the world by designing a new soda can! Learners first measure the dimensions of a typical soda can and calculate its surface area and volume. They then use spreadsheet software to minimize the surface area for the volume, thus...

Why does soda fizz when opened? Learners discuss the appearance of bubbles in soda bottles when opened. In groups, they design and complete an experiment comparing the amount of carbon dioxide dissolving in cold versus hot liquids.  

A well-written lesson plan, second in a series of four, gets high schoolers exploring how the Antarctic food web is impacted by climate change and the associated melting of polar ice sheets. It begins with a PowerPoint presentation about...

It is estimated that within 100 years, there will be no rain forests. The video on ecosystems covers the impact humans have on the environment. It includes ecosystem services, the importance of biodiversity, deforestation,...

Designing the right package — it's more than a pretty picture. Challenge small groups to design a food package. They must consider the type of food they are packaging and the package's ability to control the physical and...

Compare the amount of sugar in soda and fruit juice. You won't believe it! Show this to your class and have them think twice about their daily soda intake!

In this colorful animation, our current problem with climate change is likened to a block-stacking game of Tetris. Greenhouse gases are increasing in the atmosphere at an increasing rate. Can we place them properly before it's too late?...

Have your learners with special needs practice cooperative work skills, teamwork, and packaging. The kids will form an assembly line. Each pupil will add an item to a paper bag and then hand it off to the next person until the bag is...