CK-12 Foundation
Evaluate Expressions with One or More Variables: Water Bottle Expression
Fill your mind as you fill virtual water bottles. Pupils use an interactive to find the amount of water that can fit in given containers. Writing and evaluating an algebraic expression helps with this task.
CK-12 Foundation
Simplify Products or Quotients of Single Variable Expressions: Circling C's
Model expression division using online manipulatives. Learners drag C's representing a term into equal groups. Guiding questions help them see their groups as the division of the term.
CK-12 Foundation
Single Variable Expressions: Neighborhood Block
The number of bicycle wheel turns is as good as any way to describe the distance from school to home. An interactive lets young mathematicians determine the number of city blocks a person bicycles. They use this information along with an...
CK-12 Foundation
Linear Systems with Addition and Subtraction: XYZ Tiles
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
Curated OER
Sum of Products and Product of Sums Expression
In this electrical circuit worksheet, students answer a series of 21 questions about sum of product and product of sum, and Boolean expression for a logic circuit. They design and build a circuit board using PC-board relays to show...
Curated OER
Expressions from Sentences
In this algebra worksheet, students rewrite sentences into algebraic equations using variables and solve for the unknown. There are 10 interactive questions with an answer key.
Curated OER
Solving Equations by Combining Like Terms
For this Algebra I worksheet, 9th graders solve linear equations in which like variable terms must be combined. The one page interactive worksheet contains fifteen problems. Answers and a hint are provided.
Curated OER
Solving Equations
In this algebra learning exercise, students solve linear equations and quadratic equations by factoring, distribution and evaluating. There are 12 questions with an answer key.
Curated OER
Active Loads in Amplifier Circuits
In this electrical worksheet, learners answer a series of 7 open-ended questions with schematics about active loads in amplifier circuits. This worksheet is printable and the answers are available on-line.