Curated OER
Units of Measure: Conversion
In this standard measurement worksheet, 4th graders solve 10 problems in which feet and yards are converted. There is no conversion chart or example on the page.
![Story Behind the Science: Pendulum Motion, Time, and Shape of Earth [Pdf] Article](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Story Behind the Science: Pendulum Motion, Time, and Shape of Earth [Pdf] Article")
Story Behind the Science
Story Behind the Science: Pendulum Motion, Time, and Shape of Earth [Pdf]
Article outlining the scientific history behind the evolution of theories about measuring time based on the movement of a pendulum, and about how gravity would impact a pendulum's movement depending on one's proximity to the Earth's...