Week from 09/30/2024 to 10/04/2024

NC.4.OA.4 Find all factor pairs for whole numbers up to and including 50 to:

• Recognize that a whole number is a multiple of each of its factors.

• Determine whether a given whole number is a multiple of a given one-digit number.

• Determine if the number is prime or composite.

This is the standard we are going to learn to help us understand multiplication and division better. This standard opens the window to learn about factors, prime numbers, composite numbers, and multiples. You will need to know your multiplication facts, as this helps make finding factors and multiples a lot easier. 

NC.4.OA.4 Factors and Multiples Lesson Slide

Factors-video

Multiples-video

Topic 7.1 Understand Factors

In this lesson, you will use arrays to find the factors of a number. Factors of a number n can be shown by arranging n counters into rows with the same number of counters in each row. The number of rows and the number of counters in each row are factors of n.

Learning Objective: I can find the factor pairs of a whole number. 

Vocabulary: arrays, factor, factor pairs  

Independent Practice: p 263 9 and p 264 # 19, 20

Homework: Study Guide (Link in ClassDojo)

Topic 7.2 Factors

In this lesson, you will use multiplication to find the factors of a whole number by listing factor pairs.  Factors of a number can be found in pairs by thinking about multiplication. 

Learning Objective: I can use multiplication to find the factor pairs of a whole number. 

Independent Practice: p 267 19 and p 268 26, 27

Homework:-- Study Guide (Link in ClassDojo)

Topic 7.4 Prime and Composite Numbers

In this lesson, you will use factors to determine whether a whole number greater than 1 is prime or composite. Prime numbers have exactly 2 factors, and composite numbers have more than 2. 

Lesson 7.4 Prime and Composite Numbers

Learning Objective: I can use factors to determine if a whole number is prime or composite. 

Vocabulary: prime number, composite number  

Independent Practice: p 275 10-13 and p 276 # 25, 26

Homework: Study Guide (Link in ClassDojo)

Topic 7.5 Multiples

In this lesson, you will use multiplication to find the multiples of a given whole number. The product of any nonzero whole number and a given nonzero whole number is a multiple of both. Factors and multiples are closely related. 

Learning Objective: I can use multiplication to find multiples of a number. 

Independent Practice: p 279 17 and p 280 22,25

Homework: Study Guide (Link in ClassDojo)

Week of September 16, 2024 to September 27, 2024

NC.4.NBT.4 Add and subtract multi-digit whole numbers up to and including 100,000 using the standard algorithm with place value understanding.

Topic 2.1 Finding Sums and Differences with Mental Math

We will venture into addition and subtraction of whole numbers. You will need to make sure you are proficient with place value, read/write numbers,  comparing, and rounding whole numbers. You will see that place value continues to play a very important role in all aspects of Math. 

Learning Objective: I can add and subtract whole numbers mentally using a variety of methods.

Essential understanding: Representing numbers and numerical expressions in equivalent forms can make some calculations easy to do mentally.

Mental Math Lesson

Vocabulary: commutative property of addition, associative property of addition, identity property of addition, count up, count down, compensation

Independent Practice: Lesson 2.1 p 39 and numbers 15 and 16 on p 40

Homework:   Study Guide (Link in ClassDojo)

Topic 2.2 Estimate Sums and Differences

This lesson revisits rounding whole numbers to give an approximate value. Remember that rounding has a few steps that you will have to take before adding or subtracting. 

Learning Objective: I can use rounding and place value to estimate sums and differences. 

Estimates Lesson

Independent Practice: p 43 4-8 and numbers 17 and 18 on p 44

Homework: Study Guide (Link in Class Dojo)

Topic 2.3 Add Whole Numbers

In this lesson, we continue to use our addition skills to find the sum. You will use place value and the standard algorithm to add 3-digit addends. In math, we use our math language, so make sure you are learning your Math vocabulary! 

Learning Objective: I can connect place-value concepts to using addition algorithm. 

Essential understanding:  The standard algorithm for adding 3-digit numbers is an extension to the standard algorithm for adding 2-digit numbers. 

Topic 2.3 Add Whole Numbers

Independent Practice: p 47 5-7, #12 and p 48 #18,20

Homework: Study Guide (Link in ClassDojo)

Topic 2.4 Add Greater Numbers

In this lesson, we continue to use our addition skills to find the sums of problems with greater numbers. You will add greater numbers using the standard algorithm. In math, we use our math language, so make sure you are learning your Math vocabulary! 

Learning Objective: I can use the standard algorithm. and place value to add multi-digit numbers. 

Essential understanding:  The standard addition algorithm for multi-digit numbers breaks the calculation into simpler calculations using place value.

Topic 2.4 Add Greater Numbers

Independent Practice: p 51 #12 and p 52 #19,22

Homework:  Study Guide (Link in ClassDojo)

Topic 2.5 Subtract Whole Numbers

In this lesson, we use place value and the standard algorithm to subtract whole numbers. You will connect place-value concepts to using the standard algorithm for subtraction. In math, we use our math language, so make sure you are learning your Math vocabulary! 

Learning Objective: I can connect place-value concepts to using the standard algorithm for subtraction. 

Essential understanding:  The standard subtraction algorithm for multi-digit numbers is an efficient strategy that can be used to subtract any two numbers. The calculations are done by place value, starting with the ones, then the tens, and so on, regrouping as needed. 

 Topic 2.5 Subtract Whole Numbers Lesson

 Independent Practice: 

p 55 #10, 15, 16 p 56 (22,23)

Homework: 

 Study Guide (Link in ClassDojo)

Topic 2.6 Subtract Greater Numbers

In this lesson, we use place value and an algorithm to subtract whole numbers. You will subtract greater whole numbers using the standard algorithm. In math, we use our math language, so make sure you are learning your Math vocabulary! 

Learning Objective: I can use the standard algorithm and place-value to subtract whole numbers. 

Essential understanding:  The standard  algorithm for subtraction breaks  the calculation into simpler calculations using place value starting with the ones, then the tens, and so on. Scholars will extend the subtraction algorithm they learned in Topic 2.5 to subtract greater numbers. The relationship between addition and subtraction is used throughout the lesson. If c - a = b and c - b = a, then a + b = c.

Topic 2.6 Subtract Greater Numbers Lesson

 Independent Practice: 

p 59 7, 8, 13, p 60(19,21)

Homework: 

 Study Guide (Link in ClassDojo)

NC.4.NBT.4 Add and subtract multi-digit whole numbers up to and including 100,000 using the standard algorithm with place value understanding.

Topic 2.7 Subtracting Across Zeros

In this lesson, you will subtract whole numbers that contain zeros using the standard algorithm. Remember that when subtracting across the zeros, you may need to regroup in more than one place.

Learning Objective: I can use number sense and regrouping to subtract across zeros.  

Topic 2.7 Subtract Across Zeros Lesson

Independent Practice: p 63 17 and p 64 # 27, 28

Homework: Study Guide (Link in ClassDojo)

Week: September 09, 2024 to September 13, 2024

NC.4.NBT.7

NC.4.NBT.7 Compare two multi-digit numbers up to and including 100,000
based on the values of the digits in each place, using >, =, and < symbols to record the results of comparisons.

This week we will be comparing and rounding numbers. Place value can be used to compare numbers. Rounding whole numbers is a process for finding the multiple of 10, 100, and so on closest to a given number. 

Compare Multi-Digit Whole Numbers:

Scholars will use their understanding of place value, including the relationships developed in the previous lesson, to compare numbers. They will use greater than, equal, and less than symbols (>, =, <) to record their comparisons.

The place values of digits in multi-digit whole numbers are used to compare numbers. You will start comparing from the left. Look for the first digit that is different. With practice, scholars will be able to compare and understand the process better. 

NBT.7 Comparing Numbers Lesson Slide 

Independent Practice:

Lesson 1-3 p 15 Problems: 8-17 p 16 Problems 25,26

 Homework: 

Study Guide (links in ClassDojo)

Round Whole Numbers:

NC.4.NBT.3

NC.4.NBT.3  Use place value Understanding to round multi-digit whole numbers to any place.

With this lesson, scholars will use their understanding of place value to round whole numbers. They will analyze the place values of digits and use that analysis to determine which multiple of 10, 100, 1,000, and so forth, a given number is closest to. Scholars will understand the concept of using a number line to round, as well.  

A shortcut is to look at the digit to the right of the rounding place. If it is 5 or more, raise the score (add 1) to the underlined digit. If it is 4 or less, let it rest (the underlined digit stays the same). Scholars will follow the steps to help build a better understanding when rounding numbers. 

Lesson 1-4 Round Whole Numbers

Independent Practice:

Lesson 1-4 p 19 Problems: 9-24 p 20 Problems 39,30

Homework:

Study Guide (Link in ClassDojo)

Use the glossary from Envision Math textbook to define the following vocabulary words in your Math Interactive Notebook.  

Academic Vocabulary:

greater than symbol (>)

less than symbol (<)

rounding

conjecture 

NC.4.NBT.1 

NC.4.NBT.1 Explain that in a multi-digit whole number, a digit in one place represents 10 times as much as it represents in the place to its right, up to 100,000.

In a multi-digit whole number, a digit in one place represents ten times what it would represent in the place immediately to its right. The numbers increase in value as more and more digits are written in the places to the left, and each new place value represents exactly ten times the value of the place immediately to its right.

Lesson 1.1/1.2 Place Value Lesson

NC.4.NBT.2:

Our number system is based on groups of ten. Whenever we get 10 in one place value, we move to the next greater place value. You learned in third grade that 123 is comprised of 1 hundred, 2 tens, and 3 ones. 

--> You will see that there are patterns that repeat in the place-value chart. One example of a pattern is that the first word on the right in each period is the same for all periods (i.e.., one, one thousands, one million).

-->Another example of a pattern is that each place value to the left is ten times as great as the place value to its right. 

Use the glossary from Envision Math textbook to define the following vocabulary words in your Math Interactive Notebook.   

Academic Vocabulary:

place value, period, expanded form, word form. standard form, number form

Week of 10-14-2024 to 10-18-2024

NC.4.MD.3 Solve problems with area and perimeter.

• Find areas of rectilinear figures with known side lengths.

• Solve problems involving a fixed area and varying perimeters and a fixed perimeter and varying areas.

• Apply the area and perimeter formulas for rectangles in real world and mathematical problems.

Ever wonder how your parents determined how much play area you needed for your trampoline. Well we are about to apply formulas for perimeter and area to solve real-world and mathematical problems. In class we will model how to find the unknown length or width of a rectangle using the known area or perimeter. 

 Area/Perimeter Lesson Slide

Helpful Videos:

https://www.youtube.com/watch?v=gNqmI0f16QI

How to Find Area and Perimeter

Guided/Independent Practice:

Area/Perimeter Grid Paper

Saavas Topic 13.6