Darts by
Robert Berkman
The object of the Darts game is to "pop" balloons
located
on a number line. The Darts are "thrown" by entering a number in
fractional
form.
[Darts]
The Factor Game by Ricky Carter,
Ihor Charischak
Two players (or teams) compete for the highest
score
by picking numbers from a screen which are then added to their score.
There
is a catch though. Whenever a player picks a number, the total of every
factor of that number still showing on the screen is added to the
opponent's
score. For example, if A chooses 25, then B gets 1 and 5 (since
they
are factors of 25). At this point A has 25 points and B has 6.
And
now it is B's turn to go. The chosen numbers are removed from the
screen.
[Factor
Game]
Billiards
This activity simulates the path of a billiard
ball on
a billiard table. You choose the dimensions of the by moving two
sliders.
the ball will travel at 45 degree angle bounce around the table until
it
ends up in one of the corners. See if you can predict how many bounces
and in what corner the ball ends up.
[Billiards]
Spiros
Three sliders determine three numbers. The turtle
uses
these numbers to draw a Whumpus, Whimsy, or a Gloop. Can you predict
which
shape the turtle will draw from knowing the three numbers?
[Spiros]
Rolling Dice Microworld by Robert
Berkman
Watch the graphs unfold as you roll 1, 2 or 3
dice. Does
the law of large numbers give you a good idea of what outcome will
prevail?
You will find ideas for using this microworld in Robert's and Ihor's
article
entitled "Looking at Random Events with Logo Software" in the
Jan/March,
1995 issue of Mathematics Teaching in the Middle School (NCTM)
[Rolling
Dice]
Family Fractions
It's time
for all 25 fractions in Number Town to return to their “home” color
pad. Your task is to move each of them to their respective pads. You
are successful if clicking on the fraction (1) switches its form from
fraction to picture ID (or visa versa) and not cause the fraction to
"run away" from the pad.
[Family Fractions]
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