Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Search
MENU
Learning Math Home
Patterns, Functions, and Algebra
 
Session 6 Part A Part B Part C Homework
 
Glossary
Algebra Site Map
Session 6 Materials:
Notes
Solutions
Video

Session 6, Part C:
Bags, Blocks, and Balance

In This Part: Balance Scale Activity | Balance Puzzles and Equations

Here are 3 balanced scales. Use your intuition about balance to determine, for each case, how many blocks have to be in the bag.

What would happen if you removed a block from the left? What would happen if you added a block to the left?

For the purposes of the problems, the bags in each problem hold the same number of blocks, and the bags themselves weigh practically nothing.

balance scale with bags and blocksbalance scale with bags and blocks

balance scale with bags and blocks

video thumbnail
 

Video Segment
In this video segment, Sue-Anne tells Professor Cossey how she solved a balance puzzle while Professor Cossey follows along on a chart.

Was Sue-Anne's thinking similar to or different from, your own strategy for these problems? Watch the video segment after you have completed the Bags and Blocks interactive activity and compare your strategy with Sue-Anne's. If you get stuck during the activity, you can watch the video segment to help you.
Will Sue-Anne's strategy work for any balance puzzle?
Will yours? Explain.

You can find this segment on the session video, approximately 13 minutes and 31 seconds after the Annenberg Media logo.

 

Next > Part C (Continued): Balance Puzzles and Equations

Learning Math Home | Algebra Home | Glossary | Map | ©

Session 6: Index | Notes | Solutions | Video

Home | Catalog | About Us | Search | Contact Us | Site Map

  • Follow The Annenberg Learner on Facebook

© Annenberg Foundation 2013. All rights reserved. Privacy Policy