Operations and Algebraic Thinking

Operations and Algebraic Thinking Approximate Duration of Study: Ongoing CCS Essential Question 1.OA.1 What is a number sentence? What strategies can we use to add and subtract whole numbers?

1.OA.2 What strategies can we use to solve word problems?

When to Study: August

Concept

Skills

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.

Students will be able to solve addition and subtraction word problems resulting in sums/differences within 20.

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.

Students will create and solve word problems using pictures and number sentences.

Assessments Common Assessments Saxon Assessments Teacher Observation

Math Test pg. 142 Common Assessments

properties of operations to add and subtract numbers?

Apply properties of operations as strategies to add and subtract.

Students will understand commutative and associate property of addition.

Saxon Math Lesson 12, 15, 25, 33 Apple Addition Worksheets Colorful Flowers Worksheet Hop and Add Worksheet Picnic Time Worksheet Hop and Subtract Worksheet Subtraction Roundup Worksheet Splish, Splash! Worksheet Math Picture Puzzles: 15-22 Math Manipulatives Websites: www.educationcity.com www.ixl.com www.brainpopjr.com Saxon Math Lesson 114 A Week at Camp Worksheet Party Time Worksheet Math Manipulatives

Saxon Assessments Teacher Observation

1.OA.3 How can we apply

Helpful Strategies and Resources

Common Assessments

Websites: www.educationcity.com www.ixl.com www.brainpopjr.com Saxon Math Lesson 94, 114 Math Manipulatives


Websites: www.educationcity.com www.ixl.com www.brainpopjr.com

1.OA.4 What is an unknown addend problem?

Understand subtraction as an unknown-addend problem.

How are addition and subtraction are inversely related?

1.OA.5 What is the relationship between addition and subtraction?

1.OA.6 How can we use what we know about number relationships to develop efficient strategies for adding and subtracting numbers?

1.OA.7 How can we determine if addition or subtraction problems are true or false?

Relate counting to addition and subtraction.

Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten; decomposing a number leading to a ten; using the relationship between addition and subtraction; and creating equivalent but easier or known sums. Understand the meaning of the equal sign and determine if equations involving addition or subtraction are true or false.

Students will be able to use inverse operations to solve an unknown-addend problem.

Common Assessments

Saxon Math Lesson 94 Math Manipulatives

Students will demonstrate that addition is counting on while subtraction is taking away.

Math Test pg. 118

Students will understand math fact families.

Teacher Observation

Students will demonstrate fluency for adding and subtracting math facts with sums/differences within 20.

Common Assessments

Teacher Observation


Students will be able to solve and compare equations to determine if they are true or false.

Common Assessments

Math Manipulatives

Saxon Assessments



Common Assessments Saxon Assessments

Websites: www.educationcity.com www.ixl.com www.brainpopjr.com Saxon Math Lesson 12, 15, 19, 21, 23, 25, 27, 33, 34, 36, 44, 49, 76, 94, 101, 114 Fact Families Worksheet Use What You Know Worksheet Math Manipulatives Websites: www.educationcity.com www.ixl.com www.brainpopjr.com Saxon Math Fact Pages Math Manipulatives

Saxon Assessments

Teacher Observation

1.OA.8 How can we determine an unknown number in an equation?

Determine the unknown whole number in an addition or subtraction equation relating to three whole numbers.

Students will be able to determine an unknown number that makes an equation true.

Common Assessments Saxon Assessments Teacher Observation

Vocabulary: number sentence, add-to, take-from, put together, take apart, counting on, sum, difference, equal sign

Saxon Math Lesson 94 Number Detective Worksheet Math Manipulatives Websites: www.educationcity.com www.ixl.com www.brainpopjr.com

Number and Operations in Base Ten Approximate Duration of Study: Ongoing CCS 1.NBT.1

1.NBT.2

Essential Question How do we read and write numbers?

What is place value? How does the placement of a digit in a number affect its value?

1.NBT.3

1.NBT.4

How can we represent the relationship between numbers using symbols?

How can we use place value to add and subtract?

Concept Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

Understand that the two digits of a two-digit number represent amounts of tens and ones.

When to Study: August Skills

Assessments

Students will be able to extend the counting sequence by reading, writing, and orally counting numbers.

Common Assessments

Students will identify the value of each digit in any given two-digit number.


Common Assessments Saxon Assessments Teacher Observation

Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =,