2015-2016 Pacing Guide Grade 2: Instructional Block 4 – Units 7 & 6
(Lessons 1 -15) March 14 – April 22
MX UNIT 6
15 Lessons: 25 days
CURRICULUM
Number & Operations in Base Ten
2.NBT
Understand place value.
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.
2. Understand the following as special cases: 10 can be thought of as a bundle of ten ones – called a “ten”, 100 can be thought of as a bundle of ten tens
– called a “hundred”.
Using place value understanding and properties of operations to add and subtract.
Frequently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
3. Add and subtract within 1000, using concrete models or drawings based on place value, properties of operations, and/or the relationship between
addition and subtraction; relate the strategy to a written method.
4. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and
sometimes it is necessary to compose tens or hundreds.
5. Explain why addition and subtraction strategies work, using place value and the properties of operations. (Note: Explanations may be supported by
drawings or objects.)
Related Standards: 2.OA.1, 2.NBT.2, 2.NBT.3, 2.NBT.5
Vocabulary: one thousand, decade number, hundreds, tens, ones, ungroup, opposite operations
Models:
Strategies:
Instruction
MX Unit 6:
Understanding Numbers to 1,000: Lessons 1-5
Adding to 1,000: Lessons 6-8
3-Digit Subtraction: Lessons 9-12
3-Digit Addition and Subtraction: Lessons 13-15
Assessment
Before Instruction: Unit 6 (Pre-Assessment)
During Instruction: Quick Quizzes (after lessons 5, 12, and 15)
MX Ongoing Assessments: Denoted by a red checkmark at the end of each lesson.
After Instruction: Unit 6 Assessment
Interim Assessment 4 (Post-Assessment) April 25
ST Math – Adding and Subtracting Tens and Hundreds→ Using Place Value to Add and Subtract→ Addition and Subtraction Situations within 1000