Khan Academy
Singapore Math: Grade 3a Unit 2 (part 5)
What a great way to present multiple-digit addition! Sal adds the numbers 2803 and 1443. He draws a chart representing each of the four place values from the problem and then draws "place value buckets” to represent what each number...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 4)
Place value is a challenging concept to grasp. In this video, the instructor links visual representations to numbers to make the concept more understandable. He uses different colors for thousands, hundreds, tens, and ones and uses a...
Curated OER
Singapore Math: Grade 3a, Unit 2 (Part 7)
If you need to extend your four-digit addition example problems, this video is perfect. Sal provides a variety of practice problems firmly based on the place value system. Each problem is wonderfully explained using multiple colors and a...
Khan Academy
Comparing Decimals Example 3, Decimals, Pre-Algebra
Use this video to show older elementary mathematicians that they can compare numbers using the same thinking that they did when they were in the first grade. Sal compares decimal numbers using the greater than and less than symbols. He...
Khan Academy
Express a Small Number in Scientific Notation (Example), Pre-Algebra
Scientific notation is defined and used to express the number 0.0000000003457. This concept is not as clearly defined as it could be, and is probably not suitable for those who have not had prior experience with the concept.
Khan Academy
Decimal Place Value, Decimals, Pre-Algebra
Having a good number sense is key to understanding place value. This video clearly explains the place values that comprise a decimal number. It is a very straightforward presentation and would be appropriate for grades three, four, or...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 9)
Have your class work through exercises focused on number patterns with place value. Present each problem, allow your class to work through it, and then show them what Sal did to solve each problem. Every problem is completely explained...
Khan Academy
Writing a Number in Expanded Form, Arithmetic Properties, Pre-Algebra
Understanding place value is a basic mathematics skill. This Khan Academy video shows students how to write the number 14,897 in the expanded form. He explains that the 7 in the ones place is equivalent to 7x1, the 9 in the tens place is...
Khan Academy
Writing a Number in Standard Form, Arithmetic Properties, Pre-Algebra
Viewing this Khan Academy video helps with grasping the concept of place value. Learners write the word six hundred forty-five million, five hundred eight-four thousand, four hundred sixty-two in standard form, using multiplication as a...
Khan Academy
Finding a Number's Place Value, Arithmetic Properties, Pre-Algebra
Khan Academy helps learners grasp the concept of Place Value. Students will break down the number 4356 as four thousands plus three hundreds plus five tens plus six ones, and then label the number by place value. This video would be most...
Scholastic
Study Jams! Place Value
Looking at large numbers can intimidate many young mathematicians. Use Zoe's place value machine to help learners understand the meaning behind each digit in a whole number. After learning about the ones, tens, and hundreds places,...
Curated OER
Comparing Large Numbers
Here is a great real life example of when a person would need to compare numbers. Each of the four examples explains how to compare the numbers beginning with the number at the left and compare the value of each digit. The examples begin...
Curated OER
How Do You Put Whole Numbers in Order From Greatest to Least?
So you want to put some given values in order from greatest to least? The instructor starts out by drawing a place value chart. She then inserts all the numbers into the chart. This helps you visually see their value so you can compare...
Curated OER
How Do You Multiply a Three-Digit Number by a One-Digit Number?
The teacher gives a very thorough explanation of how to set up and multiply numbers vertically. She emphasizes place value and where the numbers go when you multiply them (carrying).
Curated OER
How Do You Compare Two Whole Numbers?
Two very similar numbers and you have to figure out which one is larger. The teacher diagrams a place value chart and shows you how to write the two numbers to make a comparison.
Curated OER
What is Place Value?
The teacher names and explains place value. She starts at the ones and moving left of the decimal goes to a million. Then moving right of the decimal she names and explains tenths to thousandths.
Curated OER
How Do You Round a Decimal to a Given Place Value?
Rounding numbers is an essential skill to have for all math classes. Sometimes those decimal numbers are just too big, and sometimes an answer should only be given out to the hundredths (like money). So watch this video to see the rules...
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 8)
Provide your class with a developmentally sound way to view four-digit subtraction. Sal uses visual solid aids to show what each step in the subtraction process represents. Everyone will be able to see the mathematical process in action.
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 8)
Sal provides a series of numbers for viewers to consider. They must attempt to identify the number pattern and predict the following two numbers in the sequence. The video contains various problems involving place value and pattern...
Curated OER
Singapore Math: Grade 3a, Unit 1 (part 9)
Have your class work through a series of exercises focused on number patterns with place value. Present each problem, allow your class to work through each one, and then show them what Sal did to solve each problem. Every problem is...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 3)
Learners explore this key concept through a review of reading and writing numbers up to 10,000. The instructor also leads a discussion of number progression. By using visual cues and brilliant colors, Sal makes it easy to understand how...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 5)
A video on Singapore Math uses a visual approach to understanding place value. It quizzes viewers on material learned about number sense. The instructor breaks down a large number, identifying the values in the thousands, hundreds, tens,...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 6)
A helpful video takes a deeper look at place value by identifying numbers of greater and lesser value using a visual approach. It would be a great way to solidify concepts for those who learn visually. Using bright colors and grouping...
Virtual Nerd
What is Place Value for Whole Numbers?
Whole numbers are the natural numbers including zero. The instructor illustrates and explains place value. She draws a place value chart and then defines each term and what the numbers mean. She writes a number in standard form and then...