# Gr 5_NBT_DecimalsRounding_Problem_Critique_DifferentIdeas

Different Ideas is a problem designed for fifth-grade students to understand rounding decimals to the nearest hundredth. Two responses are given as to what a decimal rounded to the nearest hundredth is and students are to critique the response and choose a side. The task uses argumentation language when specifically asking for the claim and evidence.

Microsoft Word version: 5_NBT_DecimalsRounding_Problem_Critique_DifferentIdeas

Ordering Decimals with Zero Digits is a family of tasks on decimals to help fifth graders understand if decimals with more zero digits are greater than those without zero digits. In the first example given, the zeros are in the hundredths and thousandths place values, and the decimals to be ordered have the same number in the tenths place. In the second example, the ones, tenths, and hundredths place values are the same, while the zeros lie in the thousandths and ten-thousandths place. Both examples provide multiple variations and extensions to enforce stronger critiques of the given responses and to contain argumentation language.

Microsoft Word version: 5_NBT_DecimalsOdering_FamilyOfTasks_Critique_OrderingDecimalsWithZeroDigits

# Gr 5_NBT_DecimalsEquivalence_Problem_Critique

This task is designed for fifth graders and uses a visual picture of a 100% block. It asks students to critique two student responses that state how much of the block is shaded. Each student takes a different approach, but essentially states equivalent answers. One student looks at all of the pieces individually, as 23 ones, and the other student looks at the pieces like place values, as 2 tens and 3 ones. Students must recognize that these are two different ways to arrive at the same answer. Students are asked to draw pictures and use words to explain how the two students came about the answer in different ways.This task is an excellent example of how students may use different interpretations and methods to solve the same problem.

Microsoft Word version: 5_NBT_DecimalsEquivalence_Problem_Critique