a(b+c)

Distributive Property
of Multiplication over addition

January 10, 2014

Make a lever to toss a piece onto the game.
Toss three times.

Add the last two numbers and multiply by the first
or
Multiply first by second and multiply first by third and add the two products.

The entire class built first class levers from the LEGO Education simple machine sets.


They placed a colored button in the "hand" at the load end.

Then flung it onto the game board.

a(b+c)= ab+ac
Distributive property of multiplication over addition.
Get three numbers.  Multiply the first by the sum of the last two.
 Or multiply the first times each of the last two and find the sum.

Points are determined where the piece lies on the game board. (If it lands on a line use the higher number.)
Toss three times. a(b+c)

Add the last two numbers and multiply by the first
or
  Multiply first by second and multiply first by third
 and add the two products.
 Example: 2(10+2) is 2 x 12
or 20 + 4
Both have the same answer.  24

Repeat 10 times
The team with the highest total score at the end of the game wins!

Link to scoring sheet.


Winners!

LEGO Links
of Linda Hamilton
hamilton@marshall.edu
Webpages and pictures on http://www.marshall.edu/LEGO