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Applications of Percent- Tax, Tip, and Discounts Stations Activity

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Important: The preview file attached is a PDF. When you purchase the file, all of the included files in the zip folder are WORD files, so they can be modified as you please! Enjoy!

Included in your purchase are the WORD files for all 4 stations, the discussion pages, and the teacher instructions (which are listed below).

Applications of Percent Stations Activity:

Pre-requisite Knowledge:
1. Ability to find a tax, tip, and discount (I spend one day teaching this before the activity)
2. Ability to factor expressions such as 50(1.00)+50(1.08)=50(1.00+.08)=50(1.08)

Optional, but not necessary, is a smart board to go over the discussion questions on.

1. Students will find the cost of a 12 pack of golf balls after tax, and then find the price of a certain amount of balls after tax. Students will also be given a chart with discounted prices and have to find the incorrectly discounted price.

2.Students will work to find tips, and other multi-step percent problems. They will also find the percentage of the bill that a given tip is (I have them use the equation part=percent∙whole)

3. Students will work to find an alternative way to compute total prices after tax and discount through the use of factoring such as 50(1.00)+50(1.08)=50(1.00+.08)=50(1.08).

4. Students will go "shopping" by choosing 3 out of 30 items (all item prices were found on amazon.com). They will then find the price of the items with a discount of 20% and then a tax of 8% added. Following that they will find the price of the items with a tax of 8% added, and then the discount of 20% applied, and state any differences they notice.

Discussion: There are 7 discussion questions that can be done together as a class, or in their groups, that talk about a good amount of the central ideas we discussed in this lesson (post stations).

Directions (Suggestions):
Depending on the time frame you want to spend, you can really have a lot of options. I make it a two day lesson (my classes are 1 hr long). I do not let them use calculators, so it took them about 20-22 minutes per station (but you could allow calculators to make the lesson shorter). The one station they do struggle the most with is station 3, because they need a little help factoring expressions like those, since we spend more time factoring expressions that we have to figure out the GCF (it always tricks them up). As for grading, I grade them on participation, which goes along with my classroom rules and expectations, however you can also collect and grade it.

Common Core State Standards Addressed:
7.RP.3 Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
7.EE.1 Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.
7.EE.2 Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. For example, a + 0.05a = 1.05a means that “increase by 5%” is the same as “multiply by 1.05.”

The product prices I used are just of items my students like. Being that this is a Word file, you can change any that you would like.
Total Pages
Answer Key
Not Included
Teaching Duration
2 hours

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Applications of Percent- Tax, Tip, and Discounts Stations
Applications of Percent- Tax, Tip, and Discounts Stations
Applications of Percent- Tax, Tip, and Discounts Stations
Applications of Percent- Tax, Tip, and Discounts Stations
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