CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Decimals Word Problems
[Free Registration/Login may be required to access all resource tools.] This is a video that shows how to solve both an addition and subtraction problem with decimals.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 1000
[Free Registration/Login may be required to access all resource tools.] The video describes an example of adding three-digit numbers followed by addition vocabulary.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video explains two 3-digit addition problems one with regrouping and the other without regrouping.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 20
[Free Registration/Login may be required to access all resource tools.] The video begins with an addition vocabulary overview followed by an example of adding numbers with a sum not exceeding twenty.
CK-12 Foundation
Ck 12: Elem Math: Overview of Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] The video gives a quick overview of 4 basic shapes: square, rectangle, circle, and triangle. Real world examples of each are also provided and briefly discussed
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition
[Free Registration/Login may be required to access all resource tools.] The video describes the two basic methods of adding numbers up to twenty. The methods shown are counting on and using tens and ones.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers Up to 20
[Free Registration/Login may be required to access all resource tools.] The video is an overview of the parts of a subtraction problem in addition to an example that uses the counting back method to solve.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 20
[Free Registration/Login may be required to access all resource tools.] The video begins with an addition vocabulary overview followed by an example of adding numbers with a sum not exceeding twenty.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two subtraction problems one with regrouping and the other without regrouping.
CK-12 Foundation
Ck 12: Elem Math: Overview of Mixed Operations Numbers to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows one review problem with mixed operations where students have to add and subtract two-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Overview of Mixed Operations Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows one review problem with mixed operations where students have to add and subtract three-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 100
[Free Registration/Login may be required to access all resource tools.] The video explains two 2-digit addition problems one with regrouping and the other without regrouping.
CK-12 Foundation
Ck 12: Elem Math: Overview of Telling Time to 1 Minute Intervals
[Free Registration/Login may be required to access all resource tools.] The video explains how to tell time on a clock to the single minute and write the time in digits.
CK-12 Foundation
Ck 12: Elem Math: Overview of Multi Step Time Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains the step by step process of solving a word problem with elapsed time.
CK-12 Foundation
Ck 12: Elem Math: Overview of Am and Pm
[Free Registration/Login may be required to access all resource tools.] The video explains the number of hours in a day, the number of hours on a clock, and the difference between am and pm.
CK-12 Foundation
Ck 12: Elem Math: Overview of Time Patterns
[Free Registration/Login may be required to access all resource tools.] The video explains how to find a pattern of time by looking at the difference between each time to know what time should come next.
CK-12 Foundation
Ck 12: Elem Math: Overview of Perimeter
[Free Registration/Login may be required to access all resource tools.] The video defines perimeter and uses a grid to count the perimeter of given shapes, followed by an example of adding the sides to find the perimeter.
CK-12 Foundation
Ck 12: Elem Math: Adding Fractions With Common Denominators
[Free Registration/Login may be required to access all resource tools.] This video shows a basic addition problem of fractions with common denominators.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Compound Unit Lengths Metric Units
[Free Registration/Login may be required to access all resource tools.] Video only that describes how to add and subtract compound units of metric length.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers Up to 20
[Free Registration/Login may be required to access all resource tools.] The video explains subtraction and uses a model to show the process of subtracting numbers up to twenty. [1:13]
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition
[Free Registration/Login may be required to access all resource tools.] The video describes the two basic methods of adding numbers up to twenty. The methods shown are counting on and using tens and ones.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers Up to 20
[Free Registration/Login may be required to access all resource tools.] The video is an overview of the parts of a subtraction problem in addition to an example that uses the counting back method to solve.
CK-12 Foundation
Ck 12: Elem Math: Overview of Conversion of Time Between Words and Numbers
[Free Registration/Login may be required to access all resource tools.] The video describes how to calculate time between numbers and words telling how to use after or before with quarter time.
CK-12 Foundation
Ck 12: Elem Math: Overview of Adding and Subtracting 3 Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three, two-digit numbers.