 Counting (19 lessons, 178 videos)
Counting and Objects (9 videos)
In this lesson, students see the connection between counting and real objects. Students should be familiar with the concept of counting as a way to find "how much" before beginning this lesson. (2:44) |
Counting 1 to 10 (12 videos)
This lesson demonstrates consecutive forward counting from one to ten. This is one of a group of lessons which show students how to count. (1:55) |
Counting Backwards (8 videos)
Students see in this lesson that consecutive counting can be done backwards (counting down), not just forwards (counting up). This is one of a group of lessons about methods for counting. (3:16) |
Counting How Many Remain (10 videos)
In this lesson, students see how to count in order to determine how many are left after some are taken away. This lesson will prepare students for later subtraction concepts. (2:41) |
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Drawing a Number Line (10 videos)
, Finding a Number on the Number Line (10 videos)
, Counting (8 videos)
, Counting Tools (8 videos)
, The History of Counting (5 videos)
, Counting on the Number Line (8 videos)
, Counting 1 to 100 (12 videos)
, Counting 1 to 1000 (10 videos)
, Counting 10 to 1 (10 videos)
, Counting 100 to 1 (10 videos)
, Counting 1000 to 1 (10 videos)
, Counting with Tallies (10 videos)
, Reading Tally Marks (11 videos)
, Counting How Many (12 videos)
, Natural Number Line (5 videos)
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Rounding and Estimation (5 lessons, 46 videos)
Rounding to the Tens Place (11 videos)
This lesson explains how to round to the tens place in a number with two or more digits. (2:35) |
Rounding to the Hundreds Place (10 videos)
This lesson explains how to round to the hundreds place when a number has three or more digits. (2:02) |
Rounding to the Thousand and Ten Thousands Place (10 videos)
This video explains how to round to the nearest thousand or ten thousands place when a number has four or five digits or more. (2:53) |
Estimating (5 videos)
In this lesson, students will learn what an estimation is and how they can estimate with numbers. (2:01) |
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Determining if an Answer is Reasonable (10 videos)
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Place Value (4 lessons, 43 videos)
The Ones Position (11 videos)
The purpose of this lesson is to explore the ones place in any number. (1:44) |
The Tens Position (11 videos)
The purpose of this lesson is to explore how to identify and understand a value in the tens place for a given number. (1:56) |
Place Value in Two to Four Digit Numbers (11 videos)
The purpose of this lesson is to show how to identify and understand place value in two to four digit numbers. (1:50) |
Place Value in Words (10 videos)
The purpose of this video is to show that each digit in a number has a position which represents a place with a value from one, tens, hundreds, thousands, etc. (0:57) |
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