## Reflection: Complex Tasks Solving Linear Systems of Equations with Substitution (Day 3 of 3) - Section 3: Guided Notes + Practice

It’s one thing to be able to plug some numbers into a formula or equation and solve. It’s even another to be able to identify those numbers from a word problem and do that. However, student understanding will not stick if a student cannot explain their reasoning or justification for WHY those numbers go where they belong in the equation or WHY this part of the equation requires a particular operation versus another. Reasoning and justification are some of the deepest levels of understanding when a student can demonstrate their abilities to do this. I push my students not to just tell me what I need to do or how but why I need to do it because then the application can become universal.

Deep Student Understanding

# Solving Linear Systems of Equations with Substitution (Day 3 of 3)

Unit 6: Systems of Linear Equations
Lesson 5 of 9

## Big Idea: Students will create a system of equations from a real world scenario and interpret the solution. Students will use linear substitution to solve systems of equations.

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80 minutes

### Noelani Davis

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