Students often struggle with trying to find common denominators when adding or subtracting fractions. Carol Gillis, a special education teacher in Webster, NY, developed this creative accommodation to assist students.
Thanks for sharing, Carol!
- Make two copies of a multiplication chart - one on blue paper and one on green.
- Laminate the charts and then cut them into strips as shown in the photo.
- Paste the outer row/column to a piece of laminated card stock.
- Apply a strip of sticy-backed velcro to the center back of each chart, and the corresponding velcro strip to the laminated piece of card stock.
- When students are working with uncommon denominators, they pull the two strips off the chart, and line up the strips to see the common number. (See example above on right.) Then they can count over to determine the correct number needed to multiply the fraction to find the equivalent.
Thanks for sharing, Carol!
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