Grade 2 Essential Question(s): How do operations affect ...

[Pages:17]Math Curriculum Grade 2

Essential Question(s):

How do operations affect numbers?

How do we use addition and subtraction to solve problems?

21st Century Theme:

Content:

Operations and Algebraic Thinking

Standards:

2.OA

A. Represent and Solve problems involving addition and subtraction

Skills

Instructional Procedures

Assessment

Resources

1. Use addition and

Concretely model and discuss a Formative Assessment Counters

subtraction within 100 to large variety of problems. Use Open- ended Problem Ten Frame

solve one- and two- step word drawings & equations with a Self Assessment

Base Ten Blocks

problems involving situations symbol for the unknown number Teacher Observation

Number Line

of adding to, taking apart and to represent the problem.

Benchmark Assessment Abacus

comparing, with unknowns in Construct and solve open simple Homework Review

Calculator

all positions, e.g., by using sentences.

Solve for Classwork Review

Computer

drawings and equations with a results unknown: 6-2=__ or

Project-Based Assessment Software

symbol for the unknown

n=3+5

Solve for Timed Drills

Calendar

number to represent the

parts unknown: 3+__=8

problem.

Interdisciplinary Connections

Vocabulary

Digits Sum Addends Ten Frame Difference Equal

Math Curriculum Grade 2

Essential Question(s):

How do operations affect numbers?

How do we use addition and subtraction to solve problems?

Content:

Operations and Algebraic Thinking

21st Century Theme:

Standards:

2.OA

B. Add and subtract within 20

Skills

Instructional Procedures

Assessment

Resources

2. Fluently add and subtract Model ways to make numbers Formative Assessment Cubes

with 20 using mental

up to 20 using ten frames,

Open- ended Problem Ten Frame

strategies. By end of Grade 2, counting on, using doubles and Self Assessment

100 and or 200

know from memory all sums near doubles, making tens

Teacher Observation

chart

of two one-digit numbers. Visualize single digit numbers on Benchmark Assessment Number line

a ten frame.

Homework Review

Flash Cards

Classwork Review

Digit cards

Project-Based Assessment Spinners

Timed Drills End of the Base Ten Blocks

Year Benchmark

Counting Cubes

Assessment

Dominos

Interdisciplinary Connections

Vocabulary

Fact Families Doubles Left overs

Math Curriculum Grade 2

Essential Question(s):

How do operations affect numbers?

How do we use addition and subtraction to solve problems?

21st Century Theme:

Content:

Operations and Algebraic Thinking

Standards:

2.OA

C. work with equal groups of objects to gain foundations for multiplication.

Skills

Instructional Procedures

Assessment

Resources

3. Determine whether a group Pairing groups of objects

Formative Assessment Connecting Cubes

of objects (up to 20) has an Counting objects in a group by 2s Open- ended Problem Tiles

odd or even number of

Write an equation to express an Self Assessment

Grid Paper

members, e.g., by pairing even number as a sum of two Teacher Observation

Number line

objects or counting them by equal addends

Benchmark Assessment

2's; write an equation to

____+____=12

Homework Review

express an even number as a even+even=even

Classwork Review

sum of two equal addends. ____+____=14

Project-Based Assessment

odd + odd = even

Timed Drills

End of the Year Benchmark

Assessment

Interdisciplinary

Vocabulary

Connections

Literature Connections Remainder

A Reminder of One by: Odd

Pinczes, Eleanor J.

Even

Houhton Mifflin 2002

Even Steven and Odd

Todd by: Kathryn Cris

Taldi (Hello Math Series-

Can be found on U-

Tube)

Count

on Pablo by: de

Rubertis, Barbara Kane

Press 1999

4. Use addition to find the Write an equation to express the Same as above

total number of objects

total as a sum of equal addends

arranged in rectangular arrays Create a model array

with up to five rows and up to of...stickers, stamps, tiles,

5 columns; write an equation counters, etc.

to express the total as a sum

of equal addends.

Objects used to develop arrays Grid Paper

Literature Connections Each Orange Had 8 Slices by: Giganti Mulberry Books, NY 1999

Row Column Array

Math Curriculum Grade 2

Essential Question(s):

How do we understand place value and use properties of operations to add and subtract?

21st Century Theme:

Content:

Number and Operations in Base Ten

Standards:

2. NBT

A. Understand place value

Skills

Instructional Procedures

Assessment

Resources

Interdisciplinary

Connections

1. Understand that the three Understand that the three digits Formative Assessment District Specific

digits of a three-digit number of a three digit number

Open- ended Problem Texts

represent amounts of

represent amounts of hundreds, Self Assessment

Base ten blocks

hundreds, tens, and ones; tens and ones.

Teacher Observation

Place Value

e.g., 706 equals 7 hundreds, 0

Benchmark Assessment Manipulatives

tens, and 6 ones. Understand

Homework Review

the following as special cases:

Classwork Review

100 can be thought of as a

Project-Based Assessment

bundle of ten tends-- called a

Timed Drills

"hundred". The numbers 100,

End of the Year Benchmark

200, 300, 400, 500, 600, 700,

Assessment Math

800, 900 refer to one, two,

Software (ex. Study Island)

three, four, five, sex, seven,

Group & cooperative work

eight, or nine hundreds (and 0

tends and 0 ones).

Vocabulary

Hundreds Tens Ones

2. Count within 1000; skip- Count by multiples of 2s, 5s, 10s, Same as above count by 2s, 5s, 10s, and 100s and 100s

3.Read and write numbers to Compose and decompose multi- Same as above

1000 using base-ten

digit numbers (including

numerals, number names, and expanded form)

expanded form.

Number line

Calculators Number line Abacus

Literature: Spunky Monkey Parde by: Stuart J. Murphy

Skip count

4. Compare two three digit numbers based on meanings of the hundreds, tens, and ones digits, using symbols to record the results of comparisons.

Compare and order whole numbers to 1000 Use ,= to compare whole numbers

Math Curriculum Grade 2

Same as above

Ten Frame Base Ten Blocks

Standard Form Expanded Form Fact Family Ordinal Numbers Zero Property Word Form Greater than less than Greatest Least Number Sentence More than Less than

Math Curriculum Grade 2

Essential Question(s):

How do we understand place value and use properties of operations to add and subtract?

21st Century Theme:

Content:

Number and Operations in Base Ten

Standards:

2. NBT

B. Use place value understanding and properties of operations to add and subtract.

Skills

Instructional Procedures

Assessment

Resources

Interdisciplinary

Connections

5.Fluently add and subtract Solve multi-digit addition and Formative Assessment District Specific

within 100 using strategies subtraction problems using a bar Open- ended Problem Texts

based on place value,

model

Self Assessment

Spinners

properties of operations,

Teacher Observation

Calculators

and/or the relationship

Benchmark Assessment Counters

between addition and

Homework Review

Ten Frame

subtraction.

Classwork Review

Base Ten

Project-Based Assessment Number Lines

Timed Drills

Computer

End of the Year Benchmark Software

Assessment Math

Abacus

Software (ex. Study Island)

Group & cooperative work

Vocabulary

Place Value Chart Regroup Add Subtract Compare Doubles Estimate Difference Sum

6. Add up to four two-digit numbers using strategies based on place value and properties of operations.

Apply the following properties of Same as above addition: Commutative, Zero as the identity element and Associative

Same as above

Same as above

Math Curriculum Grade 2

7. Add and subtract within Use different methods to

Same as above

1000, using concrete models develop fluency in adding and

or drawings and strategies subtracting multi-digit numbers

based on place value,

Use the inverse relationship

properties of operations,

between addition and

and/or the relationship

subtraction

between addition and

Recall addition and subtraction

subtraction; relate the

facts

strategy to a written method. Add and subtract whole numbers

Understand that n adding or to 1000

subtracting three-digit

Model addition and subtraction

numbers, one adds or

with place value

subtracts hundreds and

hundreds, tens and tens, ones

and ones; and sometimes it is

necessary to compose or

decompose tens or hundreds.

Same as above

Same as above

Math Curriculum Grade 2

Essential Question(s):

How do we understand place value and use properties of operations to add and subtract?

21st Century Theme:

Content:

Number and Operations in Base Ten

Standards:

2. NBT

B. Use place value understanding and properties of operations to add and subtract.

Skills

Instructional Procedures

Assessment

Resources

Interdisciplinary

Connections

8. Mentally add 10 to 100 to Use mental math strategies to Formative Assessment District Specific

a given number 100-900, and add and subtract

Open- ended Problem Texts

mentally subtract 10 or 100 Round to the nearest ten to Self Assessment

Base Ten

from a given number 100-900 estimate sums and difference Teacher Observation

Number Lines

Benchmark Assessment Computer

Homework Review

Software

Classwork Review

Abacus

Project-Based Assessment Spinner

Timed Drills

End of the Year Benchmark

Assessment Math

Software (ex. Study Island)

Group & cooperative work

Vocabulary

Place Value Chart Subtract Compare Add Compare Doubles Estimate Difference Sum Regroup

9. Explain why addition and subtraction strategies work, using place value and the properties of operations.

Explanations may be supported by drawings or objects Construct, use, and explain in writing procedures for performing addition and subtraction in problem solving. Model addition and subtraction with place value

Same as above

Same as above

Same as above

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