Pro-Bot Robot Module
Middle School Computer Science Class
Student Objectives:
Create algorithms for Pro-Bot to draw polygons. Use tutorials to troubleshoot. Find the area of each polygon you draw.
Math Standard:
6.G.A.1 Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; know and apply these techniques in the context of solving real-world and mathematical problems.
Polygons:
In geometry, a polygon refers to a closed, two-dimensional figure formed by a set of straight line segments. The straight line segments are called the polygon’s edges or sides, and the points where two edges meet are the polygon's vertices or corners.
We see polygons of different types all around us in our daily lives.
If all edges are equal and all angles are equal, then it is a regular polygon. Else, it is an irregular polygon.
Pro-Bot Tutorial Videos
Pro-Bot Directions
Use butcher paper, markers, and pro-bot to code and create the following polygons.
Square:
Use Pro-Bot to draw a square of sides 8 cm. Each interior angle is 90 degrees. Find the area of the square you drew with Pro-Bot.
Rectangle:
Use Pro-Bot to draw a rectangle of sides 4 cm and 6 cm. Each interior angle is 90 degrees. Find the area of the rectangle you drew with Pro-Bot.
Parallelogram:
Use Pro-Bot to draw a parallelogram of sides 4 cm and 6 cm. One pair of interior opposite angles is 45 degrees each and the other pair is 135 degrees each. Find the area of the parallelogram you drew with Pro-Bot.
Note: Remember that for a parallelogram, opposite angles are equal.
Equilateral Triangle:
Use Pro-Bot to draw an equilateral triangle of sides 6 cm. Each interior angle is 60 degrees. Find the area of the equilateral Triangle you drew with Pro-Bot.
Right Triangle:
Use Pro-Bot to draw a right triangle of sides 3 cm, 4 cm and 5 cm. The interior angle between the 4 cm and 5 cm sides is 36 degrees. The interior angle between the 3 cm and 5 cm sides is 54 degrees. The interior angle between the 3 cm and 4 cm sides is 90 degrees. Find the area of the right triangle you drew using Pro-Bot.
Note: Remember that when you draw a right triangle using Pro-Bot, at each vertex Pro-Bot has to turn at its supplementary angle, and not the interior angle, assuming it was moving in the forward direction before making the turn.