Professor Morris Puzzles |
|
Created by Doug Williams
Artwork by Rob Mullarvey
50 Poster Puzzles
- all puzzles presented in rhyme
- original CARtoon drawings
- attractive presentation suitable for Years 2 to 8
- wide range of puzzles
- photocopiable for your class
- generate talk about mathematics
|
Seeking A Solution
Many Professor Morris Puzzles can be related to hands-on problem solving tasks from the Mathematics Task Centre Project.
Making those links can enhance learning, so here are the links related to the Poster shown above.
Topics
Multiplication, Commutative Law
Task Centre Connection
- Task 17 : Truth Tiles 2
- Task 19 : Cookie Count
- Task 30 : Truth Tiles
- Task 123: Bob's Buttons
Strategy
- Make a model
- Write an equation
Solution
Clearly the answer to the puzzles is 20.(This is for puzzle 8 & 9) Also the pair of puzzles shows that 4 x 5 = 5 x 4 But more importantly the puzzles demonstrate the importance of context, for in these cases 4 x 5 does not mean the same as 5 x 4.
Start Talking
- Can you create another story which could be represented by 4 x 5 or 5 x 4?
- Can you create another story in which 4 x 5 and 5 x 4 have the same answer, but do not mean the same thing?
- When you can reverse the numbers in an operation and still get the same answer, the operation is called Commutative. Which other operations are commutative?
- Make up a new equation. Now try to invent a story which could be represented by this equation.
- Make up a "something" story like this:
There were some dogs in the yard. four dogs went for a walk. Three dogs were left behind. How many dogs were in the yard to start with?
- Can you write an equation that represents this story?
- Can you make a class book of these stories?
Orders from :
Black Douglas Professional Education Services [http://www.blackdouglas.com.au]
8 Greenbank Drive Mooroolbark Vic 3138 Australia
Phone : +61 3 9726 8316
Fax : +61 3 9727 4644
email : doug@blackdouglas.com.au
|
