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University of Missouri
Money Math
Young mathematicians put their skills to the test in the real world during this four-lesson consumer math unit. Whether they are learning how compound interest can make them millionaires, calculating the cost of remodeling...
EngageNY
Congruence, Proof, and Constructions
This amazingly extensive unit covers a wealth of geometric ground, ranging from constructions to angle properties, triangle theorems, rigid transformations, and fundamentals of formal proofs. Each of the almost-forty lessons...
National Security Agency
Fraction Fever
This unit on fractions allows for upper-aged elementary learners to explore ways to find the greatest common factor and least common multiple of two numbers. Ultimately, young mathematicians will be able to identify equivalent fractions,...
Mathematics Vision Project
Geometric Figures
Logical thinking is at the forefront of this jam-packed lesson, with young mathematicians not only investigating geometric concepts but also how they "know what they know". Through each activity and worksheet, learners wrestle with...
Schoolcraft College
Trigonometry
This trigonometry textbook takes the learner from a basic understanding of angles and triangles through the use of polar coordinates on the complex plane. Written by a mathematician-engineer, examples and problems here are used to...
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: 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: Finding the Incorrect Equations
[Free Registration/Login may be required to access all resource tools.] In the video there is a list of equations where multiplication facts are set equal to each other. Students then are walked through solving each side of the equations...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Incorrect Statement
[Free Registration/Login may be required to access all resource tools.] The video describes the process of determining which multiplication facts do not equal the sum of the given addition problem. The video is followed by a series of...
CK-12 Foundation
Ck 12: Elem Math: Multiplication Stories and Illustrations I Word Problems
[Free Registration/Login may be required to access all resource tools.] The video models how to solve a multiplication word problem using pictures, writing the number sentence and solving. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 2
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 4
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 10
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 7
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 8
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 9
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 11
[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...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 3
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by three. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 5
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by five. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplication Sentences Numbers 6, 7, 8, 9, 11, and 12
[Free Registration/Login may be required to access all resource tools.] The video models how to solve a multiplication word problem using pictures, writing the number sentence and solving. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 12
[Free Registration/Login may be required to access all resource tools.] The video describes how to multiply by 12 using repeated addition. The video is followed by a series of practice questions to assess student comprehension of the...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 6
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by six. The video is followed by a series of practice questions to assess...