Gears Teacher Resources

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Fifth graders put one axle in each of four gears finding or making a mark on each gear. They label one gear as the driver, and one as the follower and put the two gears on the baseboard with the marked teeth touching and then turn the driver one complete time around clockwise watching the follower and recording how many times the follower turns and in what direction.
Students explore gears.  In this simple machines and ratio lesson plan, students view a video clip in which front and rear bicycle gears are explained. From a set of gear combinations and gear ratios, students identify high and low gear ratio values.  Students complete a related worksheet.
Here is a game geared toward elementary engineers. Given a selection of different-sized gears, they must strategize an arrangement to power a particular cog. Get your engineers' gears turning with this app!
Activate middle schoolers' minds with this physical science activity. Learners vary the diameter of gears and the number of teeth on them to find how energy output is affected. This writeup features well-developed background information for the teacher and provides a laboratory worksheet for the learners.
Fourth graders investigate the principles and uses of gears, and examine how gears can be used to alter the direction of motion or the speed of an object. They observe two cars with different sized wheels roll down an inclined plane, and conduct an experiment using a gear factory kit.
Middle schoolers calculate gear ratio as they solve word problems. They discuss and find slopes as they relate to real life. Additionally, they hey use ratio and proportion to make predictions and solve problems.
In this learning about gears worksheet, 5th graders read and discuss a 1 page article on gears, fill in 7 blanks to complete 5 facts about gears and make a set of gears from a template provided in the worksheet.
In this gears learning exercise, students use a ruler and gears to conduct an experiment. Students follow 11 sets of directions,write a conclusion, and graph their results.
Fifth graders read selected pages from their science text and explain forces affected by wheels and axles. They read and discover that gears transfer forces and that gear combinations relate to compound machines.
Lego gears demonstrate the roles of the driver and follower gears. Because of the complexity of math explained in the video, this would be most appropriate for teaching upper elementary scientists about simple machines.
Students complete pre reading, writing, and post reading activities for the book Work and Play Pulleys and Gears. In this guided reading lesson plan, students complete writing, go over vocabulary, answer short answer questions, have discussions, and more.
High schoolers use paper plates and detailed directions to build a model of the Michigan Avenue Bridge's gear system. By carefully measuring and cutting "teeth" for the gears of the "Gear Train," they create small gear that will intersect the larger gears, and calculate the amount of torque and power required to move the bridge leaf.
Second graders explore simple machines. In this technology lesson, 2nd graders look at pulleys and gears and what the uses are for each. They complete a worksheet comparing the two. 
Mountain biking sounds like a lot of fun, but it also sounds like a lot of hard work! You have to get uphill to enjoy the ride downhill. Learn about shifting gears to go uphill and to keep your weight balanced properly. This is one instructional activity out of five in this mountain biking unit. There are links to other lessons, where you can also link to the mountain biking unit plan page.
Students analyze an engineering problem. They contrast paper and pencil mastery of concepts with hands-on mastery. They present their design and rationale behind it, whether it works or not.
Students discuss that the conservatin of energy states that the energy imput must equal the energy output. They then figure out how can a machine help you to perform task otherwise considered impossible? Students discuss the six simple machines and give examples of each.
In this gears worksheet, students put together and label gears and see how many turns it takes to go in a given directions. Students then fill in a chart with their results.
In this gears worksheet, students read about putting together different gears and answer short answer questions about it. Students also put together gears and read a story.
Students work together to build a simple gear train. They record their observations as it gains speed and how the gears rotate. They develop rules about gears based on these observations.
In this math worksheet, students apply their knowledge of angles and rotation to solve a word problem involving an old pocket watch.  They discuss gears, rotation and accuracy.

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