Research technology risks and dangers, explore solutions, and create a report to communicate your findings. Time to complete: 2-5 hours

This activity is a class lab activity in which students will observe unknown rocks and learn about how they fit into the rock cycle.

In this introductory physics lab activity, students explore the sounds made by the free-end of a ruler vibrating off the end of a desk.

This activity provides for small group investigation of the properties of different liquids leading to the discovery that liquids are different in many ways, including density.Students would be led to a very beginning understanding of density.

This page gives students a guide for problem solving. A list of strategies is presented, and each strategy has an example to demonstrate it.

Students use their height and the length of the shadow to determine the height of buildings. A great outdoor activity to learn about proportions and ratios.

This activity is an extension of the FOSS Variables Lifeboat investigation. Students choose a lifeboats variable to investigate, write up an experiment based on the variable to be tested, test the variable, and create a lifeboats investigation poster to share their results.

If you like tackling formulas, then this math challenge is for you. See if you can calculate Helix's BMI (body mass index) and find out if his health is at risk. A one page NCTM Math Challenges for Families activity that engages learners in real-world skills.

Try this real world challenge that focuses on data collection, data analysis, and problem solving with information from the U.S. Census Bureau. Discover how these skills are applied in real life situations in this one page activity from the NCTM Math Challenges for Families series.

Use this site to figure out if women really do live longer than men. A math challenge taken from today's health journals that explores data collection, data analysis, patterns, and graphing skills. Learn how mastering these skills can be useful in real life situations in this one page activity from the NCTM Math Challenges for Families series.

Take the math challenge. Can you figure out how long you have to wait in line to buy a ticket? An estimation and time measurement challenge from the NCTM Math Challenges for Families collection. Based on real-world themes and application. Hints are included, if you need them.

Try this probability challenge from the NCTM Math Challenges for Families series. See if you can figure out the probability of putting three checks in the correct envelopes without looking. Also, discover how probability skills are used in real life situations.

If you're superstitious you may want to try this math challenge. Test your reasoning and number sense skills by finding out if there is a Friday the 13th every year. Discover how understanding number patterns and reasoning can be helpful in real life situations. This is just one of the activities from the NCTM Math Challenges for Families series.

This guided inquiry activity is designed to help students understand that people get all of their knowledge from their senses, and that is why our senses are so important.

In this lesson, students will use a variety of materials to create a boat that float and hold weight without sinking.

Through a series of three lessons, each with its own hands-on activity, students are introduced to 1) forces, loads and stress, 2) tensile loads and failure, and 3) torsion on structures—fundamental physics concepts that are critical to understanding the built world. The associated activities engage students through experimenting with hot glue gun sticks to experience tension, compression and torsion; the design of plastic chair webbing strips; and problem-solving to reinforce foam insulation "antenna towers" to withstand specified bending and twisting.

A structured geometry program teacher edition of daily lesson plans and teacher supports to accompany the College Access Reader: Geometry student edition.

Introduces problem-solving, suggesting that the word "opportunity" replace the word "problem." Describes the 7 steps in the process. Includes other links.

See how Mississippi high school students confront the uncertainty and untidiness of science and develop problem-solving strategies in the context of local catfish farming. [5:40]

The Teacher's Edition covers tips, common errors, enrichment, differentiated instruction and problem solving for teaching CK-12's Basic Geometry Student Edition. The solution and assessment guides are available upon request.