In the eyes of children the world is a simple place, objects are either big or small. This simple activity aims to expand the comparison language of young mathematicians as they use the words taller and shorter to compare their...

The dog is big. The mouse is little. Using vocabulary words introduced in the previous lesson, kids read, or are read, sentences and examine images that contrast big and little.

In this big/small worksheet, students first examine 7 pictures of common objects. Students circle the word "big" or "small" to show the size of the item.

Problems come in all shapes and sizes, but the first step in solving a problem is to identify just what the problem is. Through a series of games and activities, middle schoolers learn first to identify a problem, decide on a solution,...

Whales are all big, but some are larger than others! Kids will love sorting the 10 whale species by size at their desk (whale cut-outs provided). Next, use a whale rope to visualize how long each of these whales actually is. A large...

Students make a math book. In this early childhood math lesson plan, students develop language, observation, and math skills as they explore the sizes of objects and use cameras to take pictures for their own math booklet based on...

How do you properly illustrate the extreme size difference between two planets—Earth and Jupiter? With the help of jellybeans, of course! Create a scale model of Jupiter's mass compared to Earth using a fishbowl, 1,400 beans, and a...

Great things come in small packages! What better way to illustrate this point than a week-long look at nanotechnology? Earth science scholars explore water quality issues through lab activities, then research new innovations in nanotech...

Being responsible online, leaving a digital footprint, and knowing how to be Internet safe are all important aspects of digital citizenship. Use a set of flash cards that promote conversations among the classroom and instill awareness of...

Students explore things that are their size, literally. In this early childhood lesson plan, students use their bodies for measuring and comparing sizes as they work in pairs to complete the activity.

If friendship were a soup, what ingredients would be in it? As part of a study of Marcus Pfister's Rainbow Fish and the Big Blue Whale, kids engage in a series of friendship-themed activities using materials contained in this richly...

The density of the huge planet of Saturn is 0.7 g/cm3, which means it could float in water! In the second part of 22, science pupils explore the size and order of the planets. They then calculate weight and/or gravity and density of...

Students explore the concept of big, bigger, and biggest. They examine and classify items by size, listen to and discuss the book "A Pig is Big," complete a fill in the blank activity, and create a tri-fold that illustrates two items...

In this pitch activity, students examine a list of 6 animals. Students record the size of each animal as big or small and the sounds they make as high or low.

Enhance your states of matter lessons with a hands-on science investigation that compares six different balls' color, texture, size, weight, ability to bounce, and buoyancy. 

Ever wonder why Pluto isn't considered a planet? Or how large the Earth is compared to the other inner planets? Explore the universe with a series of projects that simulate different aspects of our solar system. The activities require...

Young scholars collect and sort rocks based on visible characteristics.  In this statistics lesson, students determine adequate sample size and categorize rocks based on characteristics.  The book Everybody Needs a Rock is read...

A mouse can fall from large heights without injury! Air resistance is a large influence on small falling objects. In an exploratory lesson, young scholars build a raindrop bottle to compare the falling rate of different-sized objects.

Balance scales create a strong visual of how an individual prioritizes one's self alongside their commitments to the community, school, and home. Scholars complete a graphic organizer then discuss their findings with their peers. A...

The math monster is at it again, this time stealing all the cars and drivers that were to take part in the cart race. If their addition and subtraction facts are up to the challenge, young mathematicians can win the drivers' freedom...

As you work through Madeleine L'Engle's A Wrinkle in Time, try out some or all of the 20 questions and activities included here. Useful for discussion questions, group assignments, or individual projects, this resource covers plot as...

There is a specific zone, or distance from a star, that a planet must be in order to have water in a liquid form. The activity demonstrates how flux density depends on its distance from the source. A photovoltaic cell gets power to...

Introducing measurement can be as simple as reading a book and then using measurement tools to understand how big a foot really is. The class reads and discusses the book How Big is a Foot? by Rolf Myller, stopping often to consider...

The concept of size is taught in this comparitive meaning of words lesson. Learners discuss the comparative qualities of words such as small, smaller, smallest. They demonstrate their understanding by drawing a picture.