Instructional Video4:04
Curated Video

Place Value Chart

K - 12th
Understand the place value chart.
Instructional Video5:16
Curated Video

Understanding Place Value in Our Number System

K - 5th
This video is a lesson on place value in the number system. To help understand place value, the speaker uses a hypothetical scenario of meeting an alien who uses different symbols for each amount and shows how our 10 digits can make all...
Instructional Video4:46
Curated Video

Subtracting Decimals Using a Place Value Chart

K - 5th
In this lesson, students learn how to subtract decimals using a place value chart. They understand the concept of place value and the importance of regrouping when subtracting numbers.
Instructional Video5:45
Curated Video

Using Digits and Place Value to Count Objects in Groups of 10

K - 5th
The video explains how to use digits and place value to count objects in groups of 10. It reviews the number system and base 10 blocks, and provides examples of counting chocolate chip cookies and cans on shelves. The video also...
Instructional Video6:10
Curated Video

Identifying Patterns in Skip Counting by Tens

K - 5th
In this video, students learn how to identify patterns when skip counting by tens using a hundreds chart. The video explains that skip counting by tens creates a straight column on the chart, with the digit in the ones place staying the...
Instructional Video4:48
Curated Video

Skip-Counting by 10s and 100s with Base-10 Blocks

K - 5th
In this video, students learn how to skip-count by 10s and 100s from any number using base-10 blocks. The teacher explains that skip-counting is counting by an amount larger than 1 and can start from any number. Students practice...
Instructional Video5:10
Curated Video

Using Skip-Counting to Solve Missing Number Puzzles

K - 5th
This video explains demonstrates the connection between skip-counting and repeated addition, as well as the relationship between addition and subtraction. The video provides strategies for identifying the pattern and determining the...
Instructional Video5:59
Curated Video

Multiplying Multiples of 10

K - 5th
In this video, students learn how to multiply a multiple of 10 by breaking it into two factors. The teacher explains the concept of multiples of 10 and demonstrates how to break down numbers and represent them in place value. The video...
Instructional Video4:23
Curated Video

Estimating Addition and Subtraction of Decimals Using Smart Rounding

K - 5th
In this video, students learn how to use smart rounding to estimate the addition and subtraction of decimals without performing the actual calculation. They learn how to round numbers to familiar or easy-to-work-with values and provide...
Instructional Video4:17
Curated Video

Solving 2-Digit by 2-Digit Multiplication Using the Partial Products Method

K - 5th
In this lesson, mathematicians will learn how to solve 2-digit by 2-digit multiplication problems using the partial products method. They will understand the value and place of each digit in a number and how to break down the problem...
Instructional Video5:07
Curated Video

Explaining Addition Using Place Value

K - 5th
This video explains how to solve addition problems using place value. It teaches students how to break apart numbers and add the tens and ones separately.
Instructional Video5:03
Curated Video

Adding Numbers to 1000 with Regrouping

K - 5th
In this lesson, students will learn how to add numbers up to 1000 using regrouping. They will understand the concept of place value and how to combine numbers to find their total.
Instructional Video7:02
Curated Video

Add and Subtract 100 from a Number Using Place Value

K - 5th
In this video, students learn how to add 102 or subtract 100 from a three-digit number using a place value model. The teacher explains the concept by breaking down the number into hundreds, tens, and ones, and demonstrates how adding or...
Instructional Video6:00
Curated Video

Counting Forward and Backward Using Number Patterns

K - 5th
In this video, the teacher explains how to count forward and backward from a three-digit number using number patterns. The lesson emphasizes the base 10 place value system and demonstrates how changing one place can affect the entire...
Instructional Video5:27
Curated Video

Adding 10 or 100 Using Expanded Notation

K - 5th
In this video, students will learn how to quickly add 10 or 100 to any number using expanded notation. Understand the concept of place value and demonstrates how to write numbers in expanded notation. Through examples and practice...
Instructional Video5:01
Curated Video

Finding the Value of Digits Using Pictures

K - 5th
In this video, a teacher explains that the value of a digit changes based on its location in the number and demonstrates this concept using squares and cubes to represent different values. Students are guided through examples to practice...
Instructional Video3:44
Curated Video

Adding Three-Digit Numbers Using Expanded Form

K - 5th
The video demonstrates how to add three-digit numbers without drawing pictures but by using expanded form. The host explains how to expand each number and add the values of the hundreds, tens, and ones separately. The process is shown...
Instructional Video4:11
Curated Video

Subtracting Large Numbers Using the Standard Subtraction Algorithm

K - 5th
This video teaches how to efficiently subtract large multi-digit whole numbers using the standard subtraction algorithm. The instructor demonstrates how to line up the numbers, decompose and recompose numbers, and repeat the process for...
Instructional Video5:36
Curated Video

Understanding Place Value Charts and How They Work

K - 5th
This video explains the concept of place value and how different places in a place value chart are related. The video emphasizes the importance of considering the place value of each digit when writing numerals and highlights common...
Instructional Video3:36
Curated Video

Writing Numbers in Word Form: Using Place Values

K - 5th
In this video, the teacher explains how to write numbers in both standard form and expanded form using place values. They provide examples and a step-by-step process for students to follow. By the end of the lesson, students will be able...
Instructional Video4:21
Curated Video

Translating Numbers from Word Form to Standard Form

K - 5th
In this lesson, mathematicians will learn how to translate numbers from word form to standard form by utilizing the clues provided by commas. By understanding the placement of commas and counting spaces, students can accurately convert...
Instructional Video3:33
Curated Video

Writing Numbers in Expanded Form

K - 5th
In this video, the teacher explains how to write numbers in expanded form by considering the value of each digit. They demonstrate examples using different numbers and emphasize the importance of understanding the place value system.
Instructional Video6:55
Curated Video

Modeling and Writing Numbers with Base 10 Blocks and Place Value Chart

K - 5th
In this video, students learn how to model and write numbers using base 10 blocks and a place value chart. They are guided through examples of different three-digit numbers and shown how to determine the value of each digit.
Instructional Video3:55
Curated Video

Multiplying Decimal Numbers by Powers of 10

K - 5th
This video explains how to multiply a decimal number by a power of 10 by understanding place value. It demonstrates that multiplying by 10 or 100 shifts the digits to the left, and the decimal point holds the digits in the correct place....