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Standard	Mathcasts VT = VoiceThread	ExamView
4AF.1.0 Students use and interpret variables, mathematical symbols, and properties to write and simplify expressions and sentences
4AF.1.1 Use letters, boxes, or other symbols to stand for any number in simple expressions or equations (e.g., demonstrate an understanding and the use of the concept of a variable).	VT VT-NW CS CS-NW
4AF.1.2 Interpret and evaluate mathematical expressions that now use parentheses.	VT VT-NW CS CS-NW
4AF.1.3 Use parentheses to indicate which operation to perform first when writing expressions containing more than two terms and different operations.	VT VT-NW CS CS-NW
4AF.1.4 Use and interpret formulas (e.g., area = length x width or A = lw) to answer questions about quantities and their relationships.	VT VT-NW CS CS-NW
4AF.1.5 Understand that an equation such as y = 3 x + 5 is a prescription for determining a second number when a first number is given.	VT VT-NW CS CS-NW
4AF.2.0 Students know how to manipulate equations
4AF.2.1 Know and understand that equals added to equals are equal.	VT VT-NW
4AF.2.2 Know and understand that equals multiplied by equals are equal.	VT VT-NW