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: Greetings from the Kalahari Desert in South Africa! In this activity, you will learn a lot about the Kalahari’s most playful residents: meerkats. The f...

In this video segment from Cyberchase, Matt tries for a second time to arrange tables and chairs to accommodate 20 workers.

This short video and interactive assessment activity is designed to teach fifth graders about counting the number of perpendicular lines.

This short video and interactive assessment activity is designed to teach fifth graders about determining unknown angles within rectangles and squares.

Students are introduced to the idea that energy use impacts the environment and our wallets. They discuss different types of renewable and nonrenewable energy sources, as well as the impacts of energy consumption. Through a series of activities, students understand how they use energy and how it is transformed from one type to another. They learn innovative ways engineers conserve energy and how energy can be conserved in their homes.

The attached PDF provides learners with a unique way to find geometric shapes through pictures. In the case, the search is for Trapezoids and Parallelograms. Use, revise, or be inspired by the ideas and create your own to support your learners.

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Students explore the relationship between input and output values and learn to use algebraic expressions and equations.

Students use a LEGO® ball shooter to demonstrate and analyze the motion of a projectile through use of a line graph. This activity involves using a method of data organization and trend observation with respect to dynamic experimentation with a complex machine. Also, the topic of line data graphing is covered. The main objective is to introduce students graphs in terms of observing and demonstrating their usefulness in scientific and engineering inquiries. During the activity, students point out trends in the data and the overall relationship that can be deduced from plotting data derived from test trials with the ball shooter.

The earth’s atmosphere may seem thick when compared to something like your height—but it’s surprisingly thin when compared to the earth’s radius. Here, you can find out exactly how thin, using strips of plastic to model the correctly scaled thickness of the atmosphere on a globe.

In this video segment from Cyberchase, Music of the Spheres plays a song using the correct beats and patterns, which helps to restore balance and harmony at Mount Olympus.

This KET animation illustrates positive and negative measurement on a straight line and on a flat plane using a point of origin.

This short video and interactive assessment activity is designed to give fifth graders an overview of reflective symmetry.

This short video and interactive assessment activity is designed to give fifth graders an overview of rotational symmetry.

In this NRich activity students will analyze a pattern on a coordinate plane in order to make predictions.

Explore your own straight-line motion using a motion sensor to generate distance versus time graphs of your own motion. Learn how changes in speed and direction affect the graph, and gain an understanding of how motion can be represented on a graph.

As relief organizations drop supplies in remote areas of need, students will design a device to protect an egg when dropped from a specific height.

Using manipulatives, students figure out patterns in problems involving seating arrangements. They write algebraic equations to describe the relationships.

In this Cyberchase video segment, the CyberSquad must locate each other using a map's grid to construct a coordinate system using letters and numbers.

Investigate the effect of gravity on objects of various mass during free fall. Predict what the position-time and velocity-time graphs will look like. Compare graphs for light and heavy objects. Was Galileo Right is the last of five SmartGraphs activities designed for a typical physical science unit of study on the motion of objects.