PORTFOLIO RESPONSE SHEET: Number Sense Course Code and Title: Number Sense and Functions AOA2 Course Module: Introduction to Number Sense Performance Task #: 1 Complete this portfolio response sheet to satisfy the performance assessment task for this course module. Be sure to upload it to Taskstream for submission. Note: As you begin to insert your responses to the prompts found in this document, please be sure to save it frequently, and note the location of the file so as to not lose any of your work. Part 1 of 3: Analyze The Standards Respond to the following four writing prompts that focus on developing instruction in number sense from the corresponding state standards: 1. Select three standards from your state that apply to number sense for grades K-6. The three selected standards must represent three different grade levels. (First Grade) CCSS.MATH.CONTENT.1.NBT.B.2 Understand that the two digits of a two-digit number represent amounts of tens and ones. (Second Grade) CCSS.MATH.CONTENT.2.NBT.A.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. (Third Grade) CCSS.MATH.CONTENT.3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction. 2. Discuss how the chosen standards build student understanding of whole numbers and relevant basic arithmetic operations (e.g., addition, subtraction, multiplication, and division) across the threeK–6 grade levels selected previously.
3. Write a sample problem for each of the three standards to illustrate the evolution of student understanding. First Grade: Break apart the following number into tens and ones. 27 2 Tens 7 Ones Second Grade: Use models to represent the following number in hundreds, tens and ones. 321 ` ` ` / / . 3 Hundreds 2 Tens 1 One(s) Third Grade: Mentally Add the following equation 1,347+ 200= 1,547
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