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Curated Video
Comparing Lengths Using Real Objects
In this video, students learn how to compare the length of objects by using real objects as measuring tools. The teacher demonstrates this concept by using paperclips, erasers, and cubes to measure the length of books, pencils, and a desk.
Khan Academy
Khan Academy: Unfolding an 18th Century Game Table
In this video [2:04] presents elegant furniture incorporating intriguing mechanical devices was a trademark of the Roentgen workshop, which from 1768 until about 1793 was one of Europe's most successful cabinetmaking enterprises. The...