Teacher Notes
The teacher needs to continue talk about and use place value in describing and justifying the processes students use to add and subtract. Reenforcing place value by saying, “we are taking a one out of the hundreds and are regrouping into the ten’s place value, and one hundred is ten tens…” Understanding regrouping rather than just moving through the algorithm is essential.

Understanding how addition and subtraction algorithms relate to previously learned strategies and models and how using a standard algorithm is an abstract way to show the concrete concept of adding and subtracting is an important connection for students to make. Student Knowledge Goals
I know basic addition facts.
I know basic subtraction facts.
I know how to add with regrouping.
I know how to subtract with regrouping.
I understand how the base ten system works.
Students should connect the standard algorithm for addition and subtraction to strategies based on place value and/or non-standard algorithms.
Students should be able to explain how and why the standard algorithm for addition and subtraction works.
I can check my answer for reasonableness.
I can add or subtract using the standard algorithm. Vocabulary addition
algorithm
difference
inverse operation
regrouping
standard algorithm
subtraction
sumLessons

__Engage NY Module 1 D-11__ – Use place value understanding to fluently add multi-digit whole numbers using the standard addition algorithm and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 D-12__ – Solve multi-step word problems using the standard addition algorithm modeled with tape diagrams and assess the reasonableness of answers using rounding.

__Engage NY Module 1 E-13__ – Use place value understanding to decompose to smaller units once using the standard subtraction algorithm and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-14__ – Use place value understanding to decompose to smaller units up to 3 times using the standard subtraction algorithm, and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-15__ – Use place value understanding to fluently decompose to smaller units multiple times in any place using the standard subtraction algorithm, and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-16__ – Solve two-step word problems using the standard subtraction algorithm fluently modeled with tape diagrams and assess the reasonableness of answers using rounding. Student Video Lessons

MGSE4.NBT.4

Teacher NotesThe teacher needs to continue talk about and use place value in describing and justifying the processes students use to add and subtract. Reenforcing place value by saying, “we are taking a one out of the hundreds and are regrouping into the ten’s place value, and one hundred is ten tens…” Understanding regrouping rather than just moving through the algorithm is essential.

Understanding how addition and subtraction algorithms relate to previously learned strategies and models and how using a standard algorithm is an abstract way to show the concrete concept of adding and subtracting is an important connection for students to make.

Student Knowledge GoalsI know basic addition facts.

I know basic subtraction facts.

I know how to add with regrouping.

I know how to subtract with regrouping.

I understand how the base ten system works.

Students should connect the standard algorithm for addition and subtraction to strategies based on place value and/or non-standard algorithms.

Students should be able to explain how and why the standard algorithm for addition and subtraction works.

I can check my answer for reasonableness.

I can add or subtract using the standard algorithm.

Vocabularyaddition

algorithm

difference

inverse operation

regrouping

standard algorithm

subtraction

sum

Lessons__Engage NY Module 1 D-11__ – Use place value understanding to fluently add multi-digit whole numbers using the standard addition algorithm and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 D-12__ – Solve multi-step word problems using the standard addition algorithm modeled with tape diagrams and assess the reasonableness of answers using rounding.

__Engage NY Module 1 E-13__ – Use place value understanding to decompose to smaller units once using the standard subtraction algorithm and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-14__ – Use place value understanding to decompose to smaller units up to 3 times using the standard subtraction algorithm, and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-15__ – Use place value understanding to fluently decompose to smaller units multiple times in any place using the standard subtraction algorithm, and apply the algorithm to solve word problems using tape diagrams.

__Engage NY Module 1 E-16__ – Solve two-step word problems using the standard subtraction algorithm fluently modeled with tape diagrams and assess the reasonableness of answers using rounding.

Student Video Lessons__Learn Zillion__ – Adding & Subtracting

__Study Jams__ – Adding & Subtracting

__Study Jams__ – Adding

__Study Jams__ – Subtracting

__Virtual Nerd__ – Adding & Subtracting

Online Problems, Games, and Assessments__Khan Academy__ – Questions and Video Lessons

Add Numbers up to MillionsAdd Numbers up to Millions: Word ProblemsAddition: Fill in the Missing DigitsAdd 3 or More Numbers up to MillionsChoose Numbers with a Particular SumSubtract Numbers up to MillionsSubtract Numbers up to Millions: Word ProblemsSubtraction: Fill in the Missing digitsChoose Numbers with a Particular DifferencePrintables__Addition and Subtraction__ – Single & Multi-Digit

__Addition__

Subtraction