Yardsale: Goals, Recycling, Fun!

Mom: Why did you decide to have a yard sale?
Julia: I wanted to save up the money to buy a video camera. My dream when I grow up is to be a director and a script writer.

M: How much money did you make at your sale?
J: I made 1,000 pesos which is about $100 dollars.

M: What did you have to do to get ready for the sale?
J: I had to price the stuff. I wrote the price with a permanent marker on masking tape. I had to remember how much we paid for it and cut that amount in half or less. My mom and I buy a lot of used clothes. There is a flea market every Tuesday at which you can buy used clothes for 40-50 pesos so we priced our stuff lower to sell more.

M: What kinds of things did you sell?
J: We sold clothes, my bunk-beds, and some stuff for the kitchen.

M: How did you advertise your sale?
J: I made posters on the computer and hung them up all over town. We hung about 75 posters. We wrote the poster in both Spanish and English. We listed the date, time, and location.

Math for Diabetes

I was diagnosed with type 1 diabetes two years ago. I use math every day to decide how much insulin I need and how much food I can eat for my meals.

I need two injections of insulin each day. Each injection is made up of two types of insulin - fast acting and slow acting. I don't ever change the amount of slow acting insulin, but I have to change the amount of fast acting insulin based upon my blood sugar levels. I need one extra unit for every four points that my blood sugar is above eight. I have to use math to calculate how much extra insulin I need.

I have to test my blood sugars at least four times every day. If my blood is not in the range of 3.5 to 15, then I have to either eat or have extra insulin. I have to use math to determine if I need to do something.

Gardening: Max Area for Mom

I love Gardening and Geometry!

Background
My mom plans to buy 100m of edging. She wants me to figure out which shape covers the largest amount of area for her beautiful roses!

Problem
So I thought... hmmm... using 100m of edging, which shape covers the most area? What are the dimensions? Think think think!

Hypothesis
I think the CIRCLE has the largest amount of area. Why do I think this is so? Well, it has too FEW or too MANY sides (wow, infinity).

Procedure
Because meters are way too big to work with, I use centimetres. I start with a rectangle and then use a circle.

Rectangle