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Grade:
MiddleSubject:
Mathematics |

Posted Sat Sep 19 22:01:15 PDT 1998 by Stephen Carr (stc60@yahoo.com).

SC's education & fun index

CHS, Colton, Ca

Materials Required: 3 X 5 cards, enough for the class

Activity Time: One half to one period.

Concepts Taught: Algebra, simple equation solving

Before class, teacher makes up the 3 X 5 cards.

On the back of two cards, write the letter "A."

Do the same with "B" and "C" and so on until you have

enough for each student to get one card. The

purpose of this is so that each student will be

paired up with another student that has that

same letter. On one of the cards, write an equation

that your level can solve such as:

2x + 5 =

3x - 18 =

x² + 5 =

On the corresponding card for that letter, write

a number from 20 to 100. Mix up the cards at

random, making sure that half the kids will get

an equation, and half the kids will get a number.

They are then to pair up with the person that has

the same letter on the back of their card. They

put them together and solve the equation. For example,

suppose one "A" had 5x + 3 =, and the other "A"

had 35, their equation would be 5x + 3 = 35.

They then solve for x.

Teacher then picks random students to present their

problems on the board.

If there is an odd number of students, just add another

"A" card and put a number on the back of it. Three

people would then be grouped as "A's". They would

then combine their numbers together. In other words,

using the above example, let's say you add another

"A" card and write -24 on it. Then the three "A" cards

would make: 5x+3 = 35-24.