CCSS Mathematics Assessment Task Comparison Grade Level: 2 Mathematics Domain and Cluster: Domain: Number and Operations in Base Ten Cluster: Understand Place Value Common Core standard(s) being assessed (if the task is intended to assess only one part of the standard, underline that part of the standard): 2.NBT.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: a. 100 can be thought of as a bundle of ten tens — called a “hundred.” b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight or nine hundreds (and 0 tens and 0 ones). 2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form. 2.NBT.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, < symbols to record the results of comparisons. Student Materials: Comparison assessment sheet Pencil Differentiation Operation: Base Ten Manipulatives (optional) Teacher Materials: Base Ten Manipulatives (optional) Directions (for teacher to administer assessment task): Pass out Comparison assessment sheet (one per student) Tell students, “ You will need to identify and write the numbers, write the correct symbol in the blank and explain your second comparison using numbers or words.” Read prompt aloud to students Remind students, “Do not forget to write the correct numbers, write the correct symbol, and explain your second comparison using numbers or words.” Have students work independently on the task. Differentiation Option: Allow students to use base ten manipulatives. Prompt: See attachment CCSS Mathematics Assessment Task Correct or Model Answer: I know that 324 is less than 326 because they both have three hundreds and two tens which are equal. But, 324 has only four ones and 326 has six ones. Since 4 is less than 6, I know that 324 is less than 326. 300 + 20 + 4 = 324 300 + 20 + 6 = 326 Both numbers have three hundred and twenty. But 324 has only 4 ones and 326 has 6 ones. Since 4 is less than 6, 324 is less than 326. Scoring Guide/Rubric (a score should be awarded for each criterion below) – NOTE THAT THIS PARTICULAR RUBRIC ASSESSES AT THE CLUSTER LEVEL. Criteria (CCSS code) 0 points 1 Point 2 Point Read and write numbers to 1000 using base-ten numerals, number names, and expanded form. (2.NBT.3) Student is unable to identify and write three digit numbers. Student is able to identify and write three digit numbers with a minor error. Student is accurately able to identify and write three digit numbers. Understand that the three digits of a three-digit number represent amounts of hundreds, tens and ones (2.NBT.1) Student is unable to correctly determine the place value amounts shown. Student is able to correctly determine the place value amounts shown with a minor error. Student is able to accurately determine the place value amounts shown. Compare two three digit numbers based on meanings of hundreds, tens and ones digits, using >, =, and < symbols to record the results of comparisons. (2.NBT.4) Student is unable to compare the two quantities orally or symbolically. (Note: If the Student is able to compare the two quantities orally but is unable to correctly use the >, =, or < symbols. Student is able to accurately compare the two quantities by correctly using the >, =, and < symbols. Understand that the three digits of a three-digit number represent amounts of hundreds, tens and ones. (2.NBT.1) Student is unable to use pictures, equations, or explanations to explain the comparison. Their reasoning has misconceptions. Student is able to use pictures, equations or words to explain their reasoning but the explanation does not have references to place value and/or comparisons. Student is able to use place value pictures, expanded notation or words with place value and comparison vocabulary to explain their reasoning. child shows that they are unable to represent the symbols correctly on paper, ask the child orally to compare the quantities.) CCSS Mathematics Assessment Task Comparison Second Grade Mathematics Assessment Part 1: Write the value of the equation on the line below. Compare the answers using <, >, or =. 40 + 3 + 800 = _________ 500 + 90 + 2 = _____ _________ Part 2: Write the value of the pictures on the lines below. Compare the numbers using <, >, or =. …. _________ _____ _____ Explain your comparison using numbers or words. …… _________ CCSS Mathematics Assessment Task