Lesson plan

Compare two decimals by using fractions to illustrate the comparison

teaches Common Core State Standards CCSS.Math.Content.5.NBT.A.3b http://corestandards.org/Math/Content/5/NBT/A/3/b
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Big Ideas: Decimals can be compared using additional supports like fractional equivalents and decimal grids. Decimals can only be compared based on their value and not their appearance. The key mathematical understandings in this task require students to know that they are able to compare decimal numbers using the values of the digits. Students will need to know how to convert a decimal to a fraction with like denominators. In grade four, students learned how to compare fractions with denominators of 10 or 100. The task involved uses the save percentages of the National Hockey League (NHL) goalies. Vocabulary: compare, decimal, decimal place value, expanded form, symbol, tenths, hundredths, thousandths, word form, >,