Adding & Subtracting Unlike Fractions...How hard can it be?

Provides three estimated using benchmark fractions
Finds equivalent fractions
Adds or subtracts fractions and mixed numbers with like and unlike denominators
Compares fractions and whole numbers
Uses strategies that exemplify the mathematical practices identified for this task

A Proficient Response (3 points)

Provides three estimates using benchark fractions
Finds equivalent fractions
Adds and subtracts fractions and mixed numbers with like and unlike denominators
Compares fractions and whole numbers
Shows evidence of using strategis that are based in the mathematical practices identified for this task

An Acceptable Response (2 points)

Provides at least two estimates using benchmark fractions with minor errors
Finds equivalent fractions with several minor errors or one major error
Adds and subtracts fractions and mixed numbers with like and unlike denominators with several minor errors and/or one major error
Compares fractions and whole numbers with minor errors
Completes the task, but approach lacks a clear strategy and evidence of the mathematical practices identified for the task

A Limited Response (1 point)

Attempts one estimate with major errors
May or may not attempt to find equivalent fractions
Adds or subtracts fractions with like denominators, but demonstrates an inability to add or subtract fractions with unlike denominators
Compares fractions and whole numbers with major errors
Makes failed attepts to complete the task

Conclusion

Now that you have become an expert in the area of adding and subtracting unlike fractions, go forth and continue to grow mathematically!

Teacher Page

In addition to this webquest, the students will be engaged in a fractions unit developed by the state of South Carolina which incorporates the strategies explored during this quest.