Curated OER
Gears and Proportions
Students explore gears. In this simple machines and ratio instructional activity, 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...
Curated OER
The Gear Game
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...
Curated OER
Using Variables And Ratios To Get You in the Right Gear
Students examine the use of variable and ratio in everyday situations including figuring out the gear ratios for the gears on a 12 speed bike. They use the bubble sort technique to write a computer program which will determine the...
Curated OER
Gearing Up--Learning About Gears
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.
Curated OER
Proportional Problems 1
Eighth graders explore representing fractions as ratios and proportions. They model proportions through the use of blocks, LEGO gears and activities with bicycle gears and pedals. Students work with bicycle gear boxes to observe and...