We start our unit on percentages by talking about converting between fractions, decimals, and percents.
I start with this Which One Doesn’t Belong? to get students thinking about percents and for me to see where my students are at in their understanding of this. Then I ask them to brainstorm everything they know about percentages.
I created matching cards for converting between decimals and percents years ago. I intentionally picked numbers with lots of 2s and 4s in them so students can’t just say, “These are the only two cards with a 5 and a 6, so they have to match”. You can download the file here.
I spend several days letting students practice converting between fractions, decimals, and percents with different puzzles I’ve found over the years. If I remember where I’ve found them, I’ll link to them here.
This is one puzzle I like for fractions and percents.
Here is an Open Middle problem too.
And yet another good Open Middle problem on percents.
Then we get into applications of percents: finding tip, tax, and discount. I think this was the first year that I didn’t have a student do a discount problem with an answer greater than the original cost of the item.
One of my students favorite things to do during this part of our unit is for me to pull up a store’s website, find an item, and then calculate tax, discount, or tip. (Side note: Little Caesar’s website was super nice for adding things students wanted to the cart and finding the price.)
We used this loop activity for practice.