OER Commons - Search Results
https://www.oercommons.org
daily12000-01-01T12:00+00:00Right on Target: Catapult Game
https://www.oercommons.org/courses/right-on-target-catapult-game-2
Students experience the engineering design process as they design and build accurate and precise catapults using common materials. They use their catapults to participate in a game in which they launch Ping-Pong balls to attempt to hit various targets.Carleigh SamsonIntegrated Teaching and Learning Program,Jake CrosbyJonathan McNeilMalinda Schaefer ZarskeWilliam SurlesEducation2015-10-16T16:45:55.477474Course Related MaterialsState Your Position
https://www.oercommons.org/courses/state-your-position-2
To navigate, you must know roughly where you stand relative to your designation, so you can head in the right direction. In locations where landmarks are not available to help navigate (in deserts, on seas), objects in the sky are the only reference points. While celestial objects move fairly predictably, and rough longitude is not too difficult to find, it is not a simple matter to determine latitude and precise positions. In this activity, students investigate the uses and advantages of modern GPS for navigation.Integrated Teaching and Learning Program,Janet YowellJeff WhiteMalinda Schaefer ZarskeMatt LippisPenny AxelradEducation2015-10-16T16:44:58.898649Course Related MaterialsComputer Accuracy
https://www.oercommons.org/courses/computer-accuracy-2
Accuracy of measurement in navigation depends very much on the situation. If a sailor's target is an island 200 km wide, sailing off center by 10 or 20 km is not a major problem. But, if the island were only 1 km wide, it would be missed if off just the smallest bit. Many of the measurements made while navigating involve angles, and a small error in the angle can translate to a much larger error in position when traveling long distances.Integrated Teaching and Learning Program,Janet YowellJeff WhiteMalinda Schaefer ZarskeMatt LippisPenny AxelradEducation2015-10-16T16:44:58.484284Course Related MaterialsClose Enough?
https://www.oercommons.org/courses/close-enough-3
Accuracy of measurement in navigation depends very much on the situation. If a sailor's target is an island 200 km wide, sailing off center by 10 or 20 km is not a major problem. But, if the island were only 1 km wide, it would be missed if off just the smallest bit. Many of the measurements made while navigating involve angles, and a small error in the angle can translate to a much larger error in position when traveling long distances.Integrated Teaching and Learning Program,Janet YowellJeff WhiteMalinda Schaefer ZarskeMatt LippisPenny AxelradEducation2015-10-16T16:44:55.966224Course Related MaterialsSextant Solutions
https://www.oercommons.org/courses/sextant-solutions-2
The earliest explorers did not have computers or satellites to help them know their exact location. The most accurate tool developed was the sextant to determine latitude and longitude. In this activity, the sextant is introduced and discussed with the class. Students will learn how a sextant can be a reliable tool that is still being used by today's navigators and how computers can help assure accuracy when measuring angles. Also, this activity will show how computers can be used to understand equations even when knowing how to do the math is unknown.Integrated Teaching and Learning Program,Janet YowellJeff WhiteMalinda Schaefer ZarskeMatt LippisPenny AxelradEducation2015-10-16T16:44:51.643619Course Related MaterialsLaunch into Learning: Catapults!
https://www.oercommons.org/courses/launch-into-learning-catapults-2
Students learn about catapults, including the science and math concepts behind them, as they prepare for the associated activity in which they design, build and test their own catapults. They learn about force, accuracy, precision and angles.Carleigh SamsonIntegrated Teaching and Learning Program,Jake CrosbyJonathan McNeilMalinda Schaefer ZarskeWilliam SurlesEducation2015-10-16T16:43:35.154243Course Related MaterialsGetting it Right!
https://www.oercommons.org/courses/getting-it-right-2
In this lesson, students will investigate error. As shown in earlier activities from navigation lessons 1 through 3, without an understanding of how errors can affect your position, you cannot navigate well. Introducing accuracy and precision will develop these concepts further. Also, students will learn how computers can help in navigation. Often, the calculations needed to navigate accurately are time consuming and complex. By using the power of computers to do calculations and repetitive tasks, one can quickly see how changing parameters likes angles and distances and introducing errors will affect their overall result.Integrated Teaching and Learning Program,Janet YowellJeff WhiteMalinda Schaefer ZarskeMatt LippisPenny AxelradEducation2015-10-16T16:43:02.196912Course Related MaterialsMeasure Twice, Cut Once
https://www.oercommons.org/courses/measure-twice-cut-once-2
Students learn the metric units engineers use to measure mass, distance (or length) and volume. They make estimations using these units and compare their guesses with actual values. To introduce the concepts, the teacher needs access to a meter stick, a one-liter bottle, a glass container that measures milliliters and a gram scale.Integrated Teaching and Learning Program,Janet YowellLesley HerrmannMalinda Schaefer ZarskeEducation2015-10-16T16:42:55.617516Course Related MaterialsMeasurement Certainty: How Certain Are You?
https://www.oercommons.org/courses/measurement-certainty-how-certain-are-you
Students learn about the statistical analysis of measurements and error propagation, reviewing concepts of precision, accuracy and error types. This is done through calculations related to the concept of density. Students work in teams to each measure the dimensions and mass of five identical cubes, compile the measurements into small data sets, calculate statistics including the mean and standard deviation of these measurements, and use the mean values of the measurements to calculate density of the cubes. Then they use this calculated density to determine the mass of a new object made of the same material. This is done by measuring the appropriate dimensions of the new object, calculating its volume, and then calculating its mass using the density value. Next, the mass of the new object is measured by each student group and the standard deviation of the measurements is calculated. Finally, students determine the accuracy of the calculated mass by comparing it to the measured mass, determining whether the difference in the measurements is more or less than the standard deviation.Nanotechnology RET,Ralph CoxEducation2015-10-15T14:14:44.307498Course Related Materials