One page to give on the first day of the unit on adding and subtracting fractions with unlike denominators, before any teaching. Its six questions are on the 4th grade skills the unit builds on: the factors of a number, equal fractions, the multiples two numbers share, adding and subtracting fractions with the same denominator, a mixed number subtraction that trades 1 whole, and whether a fraction is more or less than one half. It has a Score line, and the key names the lesson each question leads into. The unit review and the unit test are packs of their own.
Give the pre-check on the first day and sort the class by what they missed. A student who misses the factors or the common multiple will need extra time on the greatest common factor and the least common denominator (lessons 7.2 and 7.3). One who misses the equal fractions needs that before renaming. The trade and the one half question lead into subtracting mixed numbers and estimating (lessons 7.7 and 7.8).
Use it to see what your child needs before the unit starts: ask for the first few multiples of 3 and of 4, and the first number on both lists.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
A check to give before the unit on adding and subtracting fractions with unlike denominators, on the skills it builds on. Students list factors and multiples, write equal fractions, add and subtract with the same denominator and compare fractions with one half.
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