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Lesson Plan

Compare two decimal numbers by using a visual model

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 by analyzing like place values. Decimals have a whole number part to the left of the decimal and, to the right, a part representing less than one whole. In this lesson, students will compare multiple decimal numbers using base ten blocks. The use of base ten blocks builds upon students' previous experience in representing whole numbers visually. Students will now use base ten blocks to model decimal numbers. This use of visual representations will enable students to demonstrate how their computations are correct when adding, subtracting, multiplying or dividing decimals. Vocabulary: compare, decimal, decimal place value, expanded form, hundredths, symbol, tenths, thousandths, word form, >, <, and = Special Materials: base ten blocks - cube, flat, long, units enough for pairs or small groups of students OPTIONAL: Place value disks Decimal grids Number line Money
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