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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Related Addition Fact

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Completing the Addition Sentence Sums to 20

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Incorrect Subtraction Sentence Numbers Up to 20

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Related Subtraction Facts

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: One Step Addition Sums to 100 Word Problems

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Mixed Operations Addition and Subtraction Ii Word Problems

For Students 2nd - 4th Standards
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Mixed Operations Subtraction and Addition Ii Word Problems

For Students 2nd - 4th Standards
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Comparing With One Step Addition and Subtraction Word Problems

For Students 2nd - 4th Standards
[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.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Mixed Operations Selecting the Correct Sentence

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three digit numbers to determine which number sentence matches the correct solution. The video is followed by a series of...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Mixed Operations Selecting the Incorrect Sentence

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three digit numbers with two operations in a number sentence to determine which number sentence does not match the correct...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Correct Addition Sentence Sums to 100

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Incorrect Addition Sentence Sums to 100

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] This video describes how to find the addition problem that does not fit for the solution given in the question. The video is followed by a series of practice...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Incorrect Subtraction Sentence

For Students 2nd - 4th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplication Sentences Ii: Numbers 2, 3, 4, 5, and 10

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a multiplication symbol of (x) to write a multiplication sentence and solve. The video is followed by a series of practice questions to...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 2

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The PLIX interactive media allows students to manipulate straws into glasses to understand the concept of multiplying by twos, followed by a video that connects...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 4

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by four. The video is followed by a series of practice questions to...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 10

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video connects multiplication to repeated addition with multiplying by 10. The video is followed by a series of practice questions to assess student...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 7

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by seven. The video is followed by a series of practice questions to...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 8

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by eight. The video is followed by a series of practice questions to...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 9

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by eight. The video is followed by a series of practice questions to...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Multiplying by 11

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to multiply by 11 using repeated addition. The video is followed by a series of practice questions to assess student comprehension of the...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Values of Digits

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video reviews place value and shows how to determine the value of each digit in a number. The video is followed by a series of practice questions to assess...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Comparing Digit Values in Numbers

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine which number has a 9 in the tens place, discussing place value of digits. The video is followed by practice problems to assess...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Comparing Digit Values in Numbers Numbers to 10000

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine which number has a 5 in the tens place. The video is followed by practice problems to assess student understanding of the concept.

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