CK-12 Foundation
Ck 12: Elem Math: Identify and Count the Lines of Symmetry in Various Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video and take an assessment on identifying and counting lines of symmetry in various shapes.
CK-12 Foundation
Ck 12: Elem Math: Conversions Between Thousands, Hundreds, Tens, and Ones
[Free Registration/Login may be required to access all resource tools.] The video describes how to convert between thousands and hundreds. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Multiple Object Lengths
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a ruler and count the length of different objects. The video is followed by a series of practice questions to assess student comprehension...
CK-12 Foundation
Ck 12: Elem Math: Interpreting Costs of Items Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to write cents in a numeric value from a written word problem. The video is followed by a series of practice questions to assess student...
CK-12 Foundation
Ck 12: Elem Math: Completing the Expanded Forms of Numbers
[Free Registration/Login may be required to access all resource tools.] The video describes how to break down a number into expanded form using place value. The video is followed by practice problems to assess student understanding of...
CK-12 Foundation
Ck 12: Elem Math: More and Less Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] The video describes how to break down a subtraction statement to determine if the statement should be more or less than. The video is followed by a series of...
CK-12 Foundation
Ck 12: Elem Math: Comparing With Two Step Addition and Subtraction Word Problems
[Free Registration/Login may be required to access all resource tools.] The video is a 2 part word problem using addition and subtraction of 2-digit numbers. The video is followed by practice problems to assess student understanding of...
CK-12 Foundation
Ck 12: Elem Math: Subtracting With Grouped Pictures
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a model and group numbers according to a subtraction problem and count the ungrouped numbers as the solution. The video is followed by a...
CK-12 Foundation
Ck 12: Elem Math: Identifying Incorrect Subtraction
[Free Registration/Login may be required to access all resource tools.] This video describes how to find the subtraction problem that does not fit for the solution given in the question. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Completing the Subtraction Sentence
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a model to determine the missing number in a subtraction problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Write in Numbers
[Free Registration/Login may be required to access all resource tools.] In this interactive media source, the video shows students how to look at a clock and write the time using digits, followed by practice problems to assess...
CK-12 Foundation
Ck 12: Elem Math: How Big Is a Meter
[Free Registration/Login may be required to access all resource tools.] The video compares objects to one meter and gives the height of an 8 year old child as a reference for the length of one meter. From there, students have to...
CK-12 Foundation
Ck 12: Elem Math: Fraction of a Whole
[Free Registration/Login may be required to access all resource tools.] The video determines the fraction of a shape that is shaded and describes how to write the fraction. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Subtracting by Counting Backward With Pictures
[Free Registration/Login may be required to access all resource tools.] The video shows how to solve a subtraction problem using a model and counting back from a given value, then writes the subtraction problem using numbers. The video...
CK-12 Foundation
Ck 12: Elem Math: Understanding More Than
[Free Registration/Login may be required to access all resource tools.] The video describes what more than means mathematically by continually counting one more than the number provided in the example. The video is followed by a series...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Correct Addition Sentence
[Free Registration/Login may be required to access all resource tools.] This video describes how to find the addition problem that does fit for the solution given in the question. The video is followed by a series of practice questions...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Related Addition Fact
[Free Registration/Login may be required to access all resource tools.] The video describes the parts of an addition problem and explains why addition facts are related. The video is followed by a series of practice questions to assess...
CK-12 Foundation
Ck 12: Elem Math: Completing the Addition Sentence Sums to 20
[Free Registration/Login may be required to access all resource tools.] The video shows how to count backwards to determine the missing number in an addition problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Incorrect Subtraction Sentence Numbers Up to 20
[Free Registration/Login may be required to access all resource tools.] The video shows how to find the correct number sentence for a given subtraction description. The video is followed by a series of practice questions to assess...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Related Subtraction Facts
[Free Registration/Login may be required to access all resource tools.] The video describes the parts of a subtraction problem and explains why subtraction facts are related. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: One Step Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit addition word problem. The video is followed by a series of practice questions to assess student comprehension of the...
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Addition and Subtraction Ii Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to solve a word problem with addition and subtraction. The video is followed by a series of practice questions to assess student comprehension of...
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Subtraction and Addition Ii Word Problems
[Free Registration/Login may be required to access all resource tools.] a The video shows how to work backwards using addition and subtraction to determine the start value of a given situation. The video is followed by a series of...
CK-12 Foundation
Ck 12: Elem Math: Comparing With One Step Addition and Subtraction Word Problems
[Free Registration/Login may be required to access all resource tools.] The video is a one step word problem using subtraction. The video is followed by practice problems to assess student understanding of the concept.