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.

Standards & Objectives

Academic standards
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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Lesson Variations

Blooms taxonomy level: 
Applying
Differentiation suggestions: 

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

References

Contributors: