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Lesson plan

Round decimals by using an understanding of place value

teaches Common Core State Standards MP7 http://corestandards.org/Math/Practice/MP7
teaches Common Core State Standards MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards 5.NBT.A.4 http://corestandards.org/Math/Content/5/NBT/A/4

Round decimals by using an understanding of place value

Big Ideas: Decimals can be rounded using an understanding of place value. Each digit within a number has a different value. In grade four, students began comparing decimals and using decimal notation for fractions with a denominator of 10 or 100. In this lesson, students will recognize the value of a digit within a decimal number. Using this understanding, students will be able to round a decimal number to any place value. Once students have mastered this skill, they can round decimals to check for accuracy in basic decimal computation problems. Vocabulary: digit, place value, round, tenths, hundredths, thousandths Special Materials: No special materials needed