Linear Systems with Addition and Subtraction: Fill in the Boxes 1

This Linear Systems with Addition and Subtraction: Fill in the Boxes 1 interactive also includes:

Eliminate a color by dragging shapes. The interactive provides a graphical color display that allows for pupils to solve a linear system by elimination. Learners combine figures following set rules for positive and negative shapes. The procedure eliminates one shape color, leaving one equation in one variable to solve.

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CCSS: Designed
Instructional Ideas

  • Have class members write the equations for each step the interactive models
Classroom Considerations

  • This is one interactive of two that use the same method
  • Must sign up for a free CK-12 account to gain access
Pros

  • Contains a description of what happens when a positive and a negative combine
  • Viewers can see the correct answer if they give the wrong one
Cons

  • None