A directory of useful objects found on the web for teaching Maths.
http://mathsnacks.com/ratey-en.html (Alternate link)
Lesson, Publisher, Math Snacks, Video, YouTube
Ratey pops up when you least expect him. And he can't resist pointing out the rates and "purrportions" in daily life. You'll never again overlook how everyday decisions rely on mathematical reasoning about rates.
See the Alternative Link for lesson resources.
16 July 2014 Edit: 17 July 2015
User submitted, thanks to Quyen Nguyen
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Robert McLean on 04 September 19 at 12:43 PM #
Video uses imperial measurements.