Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions. (Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.)

In this webinar, you will hear about several major concepts introduced in the book, The Problem with Math is English, further explained by the author, Concepcion "Como" Molina, EdD. The book can be purchased online at: http://www.sedl.org/pubs/catalog/item...

SEDL offers professional development for college- and career-ready mathematics at: http://highperformingschools.sedl.org.