Water Balloon Mishap!

by Jon Orr

Another 3-Act Math Problem.

I originally created this problem for the iBook I made for Linear Relations. I used the problem with grade 9 academics on the first day of school this year to get them introduced to the 3-Act style of questions.

This problem also has worked well with a grade 9 applied class when working with ratios and rates.

Here’s the problem,

ACT 1

Ask students: What were your “Wonder Questions” – What did you wonder?

Students will most likely ask when will the balloon explode, or how much water is in the balloon.

Ask Students: What information would you need to know?

ACT 2

Video

Teacher Note: When I did this problem with students I was interested in applying rates, so when students wanted to know how big the balloon would get I told them the standard balloon will hold 14 Litres of water. If I was doing this near the end of the course I would tie in the volume of a sphere [Most balloons will have about 12 inch diameter.]

 

ACT 3

Remind101 in Functions

by Jon Orr

Hey, grade 11’s! Subscribe to remind101 to get updates, reminders and maybe hints!!!

Just sent a text to the number below with the message. That’s it!!

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Google Drive – Storage for Class Notes

by Jon Orr

For the last few years I’ve been trying to post all my handouts and class notes online on this site! I’ve found it clunky in the sense that I’ve made the handout…… upload the handout here…..then create a link to the handout. There has to be a more streamlined way!

There is!!

Use your Google Drive account and share a folder! You can create a public link to a folder, share that link, and whatever you dump in that folder will be shared! Seems a little more streamlined! The best part for less technically inclined teachers is that you don’t really need a website to do this! Just a place to share the link…..Twitter, Google Sites, or just Google Calendar.

Check out some steps to set this up!

1. Share a folder on your Google Drive account.

Choose the folder in your drive……Click More……the Share

Share setup

Share a Folder

Grab the link: You can share via Twitter, Email, or copy and paste this link to a website. Make sure the “Who Can Access” says public! That’s it….your folder is now shared and you can start dropping files in it!

Grab Link

2. Upload Files to the folder to share.

The great part of sharing this folder is that now I can upload files, notes, and handouts right from my iPad or SmartNotebook on my PC.

Using the iPad.

After completing notes in class using the GoodNotes App I can export the files right to the Shared folder.

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GoodNotes Upload

GoodNotes Upload

Below is the image what students/parents would see when they click on the link to the folder.

Student View

That’s it!!

Grade 11 – Desmos Project

by Jon Orr

Before you begin working on your project you need to do two things.

  1. Find a picture that has many opportunities to draw functions. Get it approved my Mr. Orr
  2. Visit Desmos.com and complete the survey below to show your competence with the site.

If completed both tasks, you may begin working on your project.