0x2418126y2418126
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
Units: US Customary Metric
Background:

Robot 1

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (0 in, 12 in)
Current Angle: 0 deg
Wheel Radius:
Track Width:
in

Robot 2

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (0 in, 6 in)
Current Angle: 0 deg
Wheel Radius:
Track Width:
in

Robot 3

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (0 in, 12 in)
Current Angle: 0 deg
Wheel Radius:
Track Width:
in

Robot 4

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (0 in, 18 in)
Current Angle: 0 deg
Wheel Radius:
Track Width:
in

Perform a - b
Problem Statement:
Look on the grid, given a - b. Modify the first Drive-Forward block to move the robot forward by a units. Then modify the Drive-Backward block to move the robot backward by b units. Use the robot's final position to answer the question: "what's a - b?". Refresh to try another problem. Look at Hint and/or Solution for example
/* Code generated by RoboBlockly v2.0 */
/* Problem Statement: 
    Add two numbers a - b on a number line. Move the robot tick
    mark along the number line, first to the red line, and then
    to the green line with the two preplaced driveDistance
    blocks. Refresh to try another problem.*/
#include <chplot.h>
#include <linkbot.h>

CPlot plot;
CLinkbotI robot;
double radius = 1.75;

// Sample Perform 9 - 3
plot.noStrokeColor();
plot.fillColor("#009900");
plot.rectangle(0, 22, 12, 2);
plot.strokeWidth(3);
plot.text("Perform 9 - 3", PLOT_TEXT_LEFT, 1, 22);
robot.traceColor("red", 4);
robot.driveDistance(9, radius);
robot.traceColor("blue", 4);
robot.driveDistance(-3, radius);
printf("9 - 3 = 6. Ignore error message");

plot.axisRange(PLOT_AXIS_XY, 0, 24);
plot.ticsRange(PLOT_AXIS_XY, 2);
plot.sizeRatio(1);
plot.plotting();
Blocks Save Blocks Load Blocks Show Ch Save Ch Workspace
Problem Statement:
Look on the grid, given a - b. Modify the first Drive-Forward block to move the robot forward by a units. Then modify the Drive-Backward block to move the robot backward by b units. Use the robot's final position to answer the question: "what's a - b?". Refresh to try another problem. Look at Hint and/or Solution for example

		
Time