https://padlet.com/palapizc/q1pu7gggcip672aw Made with serendipity en-us 2021-10-20 21:28:56 UTC 2025-12-18 21:34:56 UTC hello@padlet.com palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859943551 Learning goals: 

• Describe the essential features of a ratio
• Contrast proportional and non proportional situations using addition and multiplication examples 
• Illustrate different ways to solve proportional problems and describe a progression of these ways
• Compare traditional methods to teaching proportional reasoning to research-based methods

]]> 2021-11-01 22:09:55 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859943551 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859944079 Definition: a ratio is a multiplicative comparison of two quantities or measures.

• They involve multiplicative rather than additive comparisons, so equal ratios from multiplication or division, not addition and subtraction
• Rate is a way to represent a ratio
• Proportional thinking is developed through activities involving comparing and determining the equivalence of rations 

]]> 2021-11-01 22:10:24 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859944079 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859945048 “Forming a ratio is a cognitive task- not a writing task” a ratio is a relationship, no matter if it's written as ⅖ or 2:5 or 2 divided by 5]]> 2021-11-01 22:11:06 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859945048 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859945656 Students need to: 

• Have opportunities to compare situation and discuss whether the comparison is due to an additive, multiplicative or constant relationship

]]> 2021-11-01 22:11:37 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859945656 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859946514 1. If You Hopped Like a Frog by David Schwartz: the book compares features of various creatures with those of humans. It provides factual data on which the proportions are based.

]]> 2021-11-01 22:12:27 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859946514 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859947532 2. Animal Farm by George Orwell: interdisciplinary opportunity with language arts. The book includes examples of telling animals to increase their “foodstuff” by 200% or 500%. This provides the opportunity to use bar diagrams to explore present increase connected to proportions 

]]> 2021-11-01 22:13:24 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859947532 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859948448 3. Wilma Unlimited: How Wilma Became the World’s Fastest Women by Krull: can launch lessons where students measure their hopping, walking, and running rates to use proportional reasoning to determine how quickly they would travel various distances. ]]> 2021-11-01 22:14:17 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1859948448 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860211112 Dynamic geometry software like GeoGebra or Desmos offers an effective method for exploring the idea of ratio. ]]> 2021-11-02 01:13:35 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860211112 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860212666 Google Earth can be used for authentic scaling activities]]> 2021-11-02 01:14:12 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860212666 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860213677 2021-11-02 01:14:38 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860213677 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860213892 2021-11-02 01:14:44 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1860213892 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863405398 2021-11-03 02:42:27 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863405398 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863415765 2021-11-03 02:46:37 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863415765 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863420083 2021-11-03 02:48:25 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863420083 palapizc https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863432340 4. Holes by Louis Sachar: A popular book and movie, this novel tells the story of boys in a “camp” who are digging holes every day, which provides an opportunity to look at daily rates of dirt removal.]]> 2021-11-03 02:53:39 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863432340 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863456531 2021-11-03 03:05:06 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863456531 jreddie1 https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863463298 2021-11-03 03:08:25 UTC https://padlet.com/palapizc/q1pu7gggcip672aw/wish/1863463298