### Learning Math and Coding with Robots

 Grid: Tics Lines: Width px Hash Lines: Width px Labels: Font px Trace Lines: Robot 1: Width px Robot 2: Width px Robot 3: Width px Robot 4: Width px
 Axes: x-axis y-axis Show Grid Grid: 24x24 inches 36x36 inches 72x72 inches 96x96 inches 192x192 inches Quad: 4 quadrants 1 quadrant Hardware Units: US Customary Metric
 Background:

#### Robot 1

 Initial Position: ( in, in) Initial Angle: deg Current Position: (0 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 2

 Initial Position: ( in, in) Initial Angle: deg Current Position: (6 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 3

 Initial Position: ( in, in) Initial Angle: deg Current Position: (12 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 4

 Initial Position: ( in, in) Initial Angle: deg Current Position: (18 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

Animations - Make the Ball Bounce
Problem Statement:
Modify the pre-placed blocks to produce the following animation:
- Have the ball bounce 8 times.
- Use a different color for the ball when it bounces up and for when it bounces down.
- Change the size of the ball - make it smaller.
- Change the starting position of the ball so it begins bouncing from the ground and reaches a height of 18.
- Change the speed of the bounce.
```/* Code generated by RoboBlockly v2.0 */
#include <chplot.h>
double d;
CPlot plot;
int count;

count = 0;
while(count < 3) {
// Move ball up
for(d = -10; d <= 18; d += 0.3) {
plot.backgroundColor("#999999");
plot.fillColor("#ff9900");
plot.strokeColor("orange");
plot.circle(0, d, 2);
delaySeconds(0.02);
}
// Move ball down
for(d = 18; d >= -10; d -= 0.3) {
plot.backgroundColor("#999999");
plot.fillColor("magenta");
plot.strokeColor("magenta");
plot.circle(0, d, 2);
delaySeconds(0.02);
}
count = count + 1;
}

plot.label(PLOT_AXIS_XY, "");
plot.grid(PLOT_OFF);
plot.tics(PLOT_AXIS_XY, PLOT_OFF);
plot.axis(PLOT_AXIS_XY, PLOT_OFF);
plot.axisRange(PLOT_AXIS_XY, -12, 24);
plot.ticsRange(PLOT_AXIS_XY, 6);
plot.sizeRatio(1);
plot.plotting();```
 Blocks Save Blocks Load Blocks Show Ch Save Ch Workspace
Problem Statement:
Modify the pre-placed blocks to produce the following animation:
- Have the ball bounce 8 times.
- Use a different color for the ball when it bounces up and for when it bounces down.
- Change the size of the ball - make it smaller.
- Change the starting position of the ball so it begins bouncing from the ground and reaches a height of 18.
- Change the speed of the bounce.

Time