Sew up pupil interest with an engaging, hands-on instructional activity. Learners first design a sports bag given constraints on the dimensions of fabric. They then evaluate provided sample responses to identify strengths and weaknesses...

Your task today: count all the trees on a tree farm. To complete the assignment, learners first estimate the number of trees on a tree farm using random sampling. To improve their own response they then evaluate provided...

Presenting ... the gold standard for a lesson. Learners first investigate a task maximizing the area of a plot for gold prospecting. They then examine a set of sample student responses to evaluate their strengths and weaknesses.

Numbers that are very large or very small are difficult to express in standard notation. Pupils learn how to convert between standard and scientific notation. They also multiply and divide the numbers in scientific notation. 

Time to learn about sundials. Scholars see how to build sundials after learning about Earth's rotation and its relation to time. The unit describes several different types of possible sundials, so choose the one that fits your needs — or...

Shuffle the resource into your instructional activity repertoire. Scholars use randomly-generated iPod Shuffle playlists to develop ideas about randomness. They use a new set of playlists to confirm their ideas, and then decide whether...

Puzzle your way through to a new understanding of area. Scholars learn about the area of polygons through equidecomposability, the idea that polygons that can be decomposed into the same set of pieces have the same area. By using...

Which fluids make the best bubbles? Pupils experiment with multiple fluids to determine which allows for the largest bubbles before popping. They gather data, analyze it in multiple ways, and answer analysis questions proving they...

Weather — there's more to it than meets the eye of the storm. With this resource young meteorologists learn about the basics of weather, including information about the factors that influence the weather, common weather vocabulary,...

Students learn the benchmarks that measure the ups and downs of the stock market. They also explore how to set up a diversified portfolio and trade stock indices for the Global Stock Game (GSG).

Students will be offered numerous opportunities to further enhance their observational skills as well as the integration of math with their continual exposure to the metric system, measurement, and graphing to represent their data....

Students read OGBO: Sharing Life in an African Village by Ifcoma Onyefulu. They complete a variety of cross-curricular activities surrounding the study of Nigerian culture. Included are reading, art, math, science, writing, social...

Students determine speed by running or walking a given distance and dividing the distance by the time it took them to do so. They record their average speed and compare it with the speeds of other moving objects.

Students meet NASA researchers who describe the relationship between force, energy and motion. They discuss how NASA's experimental X-plane is being tested to make space travel more reliable and show how proportionality and ratios are...

Young scholars use Geometer's Sketchpad to examine the scale factor when in is applied to the length of a figure's sides. They look at how the scale factor affects the side lengths, perimeter, and area of the figure that result. They...

Students investigate how weight affects a parachute's rate of fall.  In this investigative lesson students test parachutes, average results and conclude what makes a faster descent.

Students stack several different colored marshmallows-one on top of the other-in the tall cylindrical container. They ct a cardboard disk to fit snugly inside of the container on top of the marshmallow stack using a compass if necessary....

Students work with given formulas to solve for specific variables. The calculation of the volume of a cylinder and the change in volume when there is a constant surface area is analyzed in this lesson.

Learners take measurements using a metric ruler, find a sum of multiple metric measurements, and use a histogram to graph their results.

Students accurately use a metric ruler to measure length. They find a sum of multiple metric measurements.

Students measure the length of student smiles and then record, order and graph their results.

Students practice working with the metric system. Students use a metric ruler to measure and record lengths of group member's smiles, and graph their results. Students find the sum of all the smiles.

Young scholars discover the need for a universal measurement system. They practice using basic metric units in measuring distance and weight.

Students begin to recognize that objects have many measurable attributes. They examine how to identify and accurately measure attributes of common objects. Also Students report their measurement findings.