AIM: How can we find percents of numbers?
HW: Tax and Tip (Percent) Word Problems #3,5,8,11,12
Do Now: A pair of sneakers originally cost $120. They are on sale for 25% off the original price. If you buy the sneakers in NYC where the tax rate is 8.875%, how much will you pay for the sneakers after the discount, tax included. Show all work.
Announcement: There will be a mini-quiz on percents tomorrow, Friday December 9. The quiz will be at the end of tomorrow's lesson and consist of only a few questions of straight computation. Students will be finding the tax, discount, tip, and markup using the strategies that we've learned (percent proportion, percent-->decimal multiplication shortcut, etc.). Students should know that discount is subtracted from the subtotal BEFORE TAX, tax is added to the subtotal, tip is added to the cost of a service, and markup is added to the cost of an item.
Classwork: Today's Do-Now will be used for tomorrow's "My Favorite No" class discussion. Students worked in collaborative groups and simulated going to a restaurant. They were given sample restaurant checks and needed to calculate the amount of tip to leave the server, and then use that amount to determine how much the meal costs in all.
Part/Whole = %/100, where Whole is the amount of the item(s) and the Part is the portion of the whole (tax, discount, markup, etc).