In this lesson, children will work together to cross the flooding river as it grows wider and wider.

In this lesson, children will design and build models of treehouses.

In this lesson children will experiment with a simple lever setup to see if they can lift a heavy object off of the floor with just one finger.

In this lesson, children will use a variety of open-ended materials to create engineering designs of houses and then construct and test their designs.

In this lesson, children will take the Pipe Cleaner Tower Challenge and compete to see who can build the tallest freestanding tower with 15 pipe cleaners.

In this lesson, children will learn that designing a skyscraper involves choosing the best materials and arranging them in the best way to keep the structure stable as it grows taller and taller.

In this lesson, children will plan, create and test paper airplanes using an engineering-design inquiry process.

In this lesson, children will create foil people as they learn design and building techniques.

In this lesson, young children will learn about STEM concepts such as velocity, speed and wind as they blow on dandelion puffs to disperse the seeds.

In this lesson, children will build and test their own catapults.