Grade 2 Pacing Guide Block 3 Unit 4

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2015-2016 Pacing Guide Grade 2: Instructional Block 3 – Units 5 & 4

MX UNIT 4 (Lessons 12 -23) February 1-February 25 12 Lessons: 18 days

CURRICULUM

Operations and Algebraic Thinking 2.OA

1.

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. (Note: See Glossary, Table 1.)

Number & Operations in Base Ten 2.NBT

Understand place value.

2.

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.

3.

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 properti es of operations to add and subtract.

4.

Frequently add and subtract within 100 using strate g ies based on place value, properties of operations, and/or the relationship between addition and subtraction.

5.

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.

6.

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.

7.

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, 2.NBT.4, 2.NBT.6, 2.NBT.8

Vocabulary: adding up method, start unknown, change unknown,

Models: Strategies:

Instruction Assessment

Unit 4:

Word Problems with Addition and Subtraction: Lessons 12-23

Before Insrtruction: Interim Assessment 2

During Instruction: Quick Quizzes (after lesson 23)

MX Ongoing Assessments: Denoted by a red checkmark at the end of each lesson.

After Instruction: Unit 4 Assessment

Interim Assessment 3 (Post-Assessment) February 29

ST Math – Adding and Subtracting Tens and Hundreds → Using Place Value to Add and Subtract → Addition and Subtraction Situations within 1000

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