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Khan Academy
Khan Academy: Evaluating Expressions With Variables Word Problems
Practice plugging in values to evaluate real-world algebraic expressions. These are introductory problems, so the expressions aren't too complicated. Students receive immediate feedback and have the opportunity to try questions...
PBS
Pbs Learning Media: Everyday Algebra: Targeted Math Instruction
This Algebra lesson focuses on writing algebraic expressions to represent real-world problems, using the properties of numbers to simplify expressions, and evaluating equations by isolating the variable.
Illustrative Mathematics
Illustrative Mathematics: 6.ee,g Sierpinski's Carpet
In this task, 6th graders are presented with a large square divided into 9 squares and the center square is then removed. They are asked to find the area of the 8 remaining squares. Each smaller square is divided in the same way and the...
Paul Dawkins
Paul's Online Notes: Radicals: Practice Page
Practice exercise reviews radicals including writing the expression in exponential form, evaluating simplifying and multiplying them, and rationalizing the denominator.