Algebra-Fun with Calendars
This is lesson plan that uses a calendar to teach an algebra concept of variables, as well as multiple step equations. This is a fun engaging activity to teach the concept of using several unknown variables in a multi-step problem. This lesson should be completed after students are comfortable with using variables, and is suggested to be used in groups or pairs.
- GLE 0406.3.1
- Extend understanding of a variable to equations involving whole numbers, fractions, decimals, and/or mixed numbers.
- GLE 0406.3.2
- Use mathematical language and modeling to develop descriptions, rules and extensions of patterns.
- GLE 0406.3.3
- Translate between different forms of representations of whole number relationships.
- GLE 0506.3.2
- Develop and apply the concept of variable.
- GLE 0601.4.1
- Define and narrow a problem or research topic.
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Alternate and easier method:
Subtracting 16 mentally isn't so easy.
Go back to that equation: I think I see a better way.
Factor 4 from the left side of the equation: 4(n + 4) = 88
Now, I could divide both sides by 4: (n + 4) = 22
Subtract 4 from both sides. n = 18