Posed with a paradigmatic engineering problem, students consider and explore mathematical algorithms and/or geometric concepts to devise possible solutions. The problem: How should a robotic vacuum move in order to best clean a floor of unknown shape and dimensions? They grapple with what could be a complex problem by brainstorming ideas, presenting the best idea for a solution and analyzing all presented solutions, and then are introduced to an elegant solution. Rather than elaborately calculating the most efficient route and keeping track of which tiles the robot has visited, a random number generator determines which direction the robot will take when it hits a barrier. Students are able to visually confirm how an unfamiliar programming concept (a random number generator) can make for a simple and efficient program that causes an NXT robot (that is suitably equipped) to clean a bare floor. Then students think of other uses for random numbers.

Students analyze international oil consumption and production data. They make several graphs to organize the data and draw conclusions about the overall use of oil in the world.

In this lesson, using different texts students learn many ways to communicate with sound. With this lesson, students will learn also how to communicate with sound over a distance.

Students will understand that wind and water can change the shape of the land. And that because there is always more than one possible solution to a problem, it is useful to compare and test designs.

In this lesson, students will compare the two stories by telling how the character's adventures or experiences are the same. Or, they can contrast a character's adventures or experiences to tell how they are different. Both of these activities help the reader show that they understand the text.

STUDENT ACTIVITY -- 4th -- TX. This is a distance learning activity students can do at home. Good readers can compare two stories by telling how the character's adventures or experiences are the same. Or, they can contrast a character's adventures or experiences to tell how they are different. Both of these activities help a reader show that they understand the text.This activity was created by Out Teach (out-teach.org), a nonprofit providing outdoor experiential learning to transform Science education for students in under-served communities.

The students will use their knowledge of decimals and place value to compare decimals using greater than less than and equal to symbols.

In this lesson, students will collect data about an observation that can be made in the outdoor classroom, record the data on a table, and compare the numbers collected by writing greater-than, less-than statements.

Students will understand that we use numbers to represent a quantity and to compare them.

Students will create mixtures using objects they find in the garden. Also, they need to be able to write a conclusion based on observations.

Students will observe and describe the properties of soil for texture, size, color and ability to support life.

Students will use the decomposition of a compost pile to visualize fractions as parts of a whole.

Students will explore the ways that plants get recycled into soil/food for other plants.

Students will read the complex text on compost and use the outdoor space to verify or deny the content of the text in the real-world setting.

Students are introduced to the idea of improving efficiency by examining a setting that is familiar to many teenagers fast food restaurants. More specifically, they learn about the concepts of trade-offs, constraints, increasing efficiency and systems thinking. They consider how to improve efficiency in a struggling restaurant through delegating tasks, restructuring employee responsibilities and revising a floor plan, all while working within limitations and requirements. Finally, students summarize and defend their suggested changes in argumentative essays.

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In this activity, students use a variety of materials to design and create headphones that absorb sound.

Students learn the meaning of preservation and conservation and identify themselves and others as preservationists or conservationists in relation to specific environmental issues. They use Venn diagrams to clarify the similarities and differences in viewpoints. They see how an environmental point-of-view affects the approach to an engineering problem.

Students will practice counting up to 20 in a very fun and exciting way. The lesson includes a hands-on component where students will be asked to collect leaves and use them as manipulatives. This lesson is great for kindergarten through first grade.

In this lesson, students will use a square foot gardening planting chart (provided) to calculate the number of crops they can plant within a specific area.