Steer Car Square Course
LEGO WeDo 2.0 Math Challenge
Steer Car Square Course
Skills Required:
Measuring in Inches
The Four Operations with Whole Numbers
Angles and Rotation Degrees
Dividing Decimals (Quotients ending in .5)
What to Build: Steer (12).
Other Materials Needed:
Yard Stick
Masking Tape
The Challenge: Program the Steer Car to travel around a square course.
Procedure:
All measurements will be inches.
1.On a bare floor use tape to form the perimeter of a one yard by one yard square.
2.You will program the steer car to travel once around the perimeter. The car will go counterclockwise, making three left hand turns. The car should finish very near to its starting point. How many long is each of the four straight sections? ______
3.The car “loses” about 9 inches in distance each time it begins a turn and each time it ends a turn. How far will the car need to travel on the first straightaway before it starts to turn? (add 9 to answer #2)______This number will also be the distance it needs to travel on the fourth straightaway, because this segment of the trip occurs after the final turn.
4.Both the second and third straightaways are before and after turns. How far will the car need to travel on each of these two straightaways (add the product of 9 and 2 to answer #2) ______
5.You will program the motor to turn at a speed of 8. If the car travels about 6 inches per second at this speed, how many seconds will it take the car to travel the necessary length of first and fourth straightaways (divide answer #3 by 6; write the quotient as a decimal) ______?
6.At this speed, how many seconds will it take the car to travel the necessary length of the second and third straightaways (divide answer #4 by 6) ______?
7.What type of angle will each turn need to be (obtuse, acute, or right?) ______
How many degrees is this angle? ______To make this angle turning left, the car will also have to make a turn of this many degrees.
8.A complete circle is 360 degrees. How many of the car’s turns will make up a complete circle? (Divide 360 by answer #7) ______
9At the speed of 8 the cars makes a complete circle in about 10 seconds. About how many seconds will it take the car to make each turn (divide 10 by answer #8 and write the quotient as a decimal) ______?
10.Now create the program forthe car, using all these numbers, and test it on the course. The car is allowed to leave the course as it is making turns, but otherwise it should stay near the course and end up near where it began. If your car does not complete the course successfully, modify the program and try again.
Reflection: Did your program work the first time you tried it? ______If not, was the problem related to the turns or distances traveled on the straightaways? ______How did you attempt to fix this problem? ______
______
LEGO WeDo 2.0 Math Challenge
Steer Car Square Course (KEY)
Skills Required:
Measuring in Inches
The Four Operations with Whole Numbers
Angles and Rotation Degrees
Dividing Decimals (Quotients ending in .5)
What to Build: Steer (12).
Other Materials Needed:
Yard Stick
Masking Tape
The Challenge: Program the Steer Car to travel around a square course.
Procedure:
All measurements will be inches.
1.On a bare floor use tape to form the perimeter of a one yard by one yard square.
2.You will program the steer car to travel once around the perimeter. The car will go counterclockwise, making three left hand turns. The car should finish very near to its starting point. How many long is each of the four straight sections? 36 in
3.The car “loses” about 9 inches in distance each time it begins a turn and each time it ends a turn. How far will the car need to travel on the first straightaway before it starts to turn? (add 9 to answer #2) 45 in This number will also be the distance it needs to travel on the fourth straightaway, because this segment of the trip occurs after the final turn.
4.Both the second and third straightaways are before and after turns. How far will the car need to travel on each of these two straightaways? (add the product of 9 and 2 to answer #2) 54 in
5.You will program the motor to turn at a speed of 8. If the car travels about 6 inches per second at this speed, how many seconds will it take the car to travel the necessary length of first and fourth straightaways? (divide answer #3 by 6; write the quotient as a decimal) 7.5
6.At this speed, how many seconds will it take the car to travel the necessary length of the second and third straightaways (divide answer #4 by 6) 9?
7.What type of angle will each turn need to be (obtuse, acute, or right?) right
How many degrees is this angle? 90 To make this angle turning left, the car will also have to make a turn of this many degrees.
8.A complete circle is 360 degrees. How many of the car’s turns will make up a complete circle? (Divide 360 by answer #7) 4
9At the speed of 8 the cars makes a complete circle in about 10 seconds. About how many seconds will it take the car to make each turn (divide 10 by answer #8 and write the quotient as a decimal) 2.5?
10.Now create the program forthe car, using all these numbers, and test it on the course. The car is allowed to leave the course as it is making turns, but otherwise it should stay near the course and end up near where it began. If your car does not complete the course successfully, modify the program and try again.
Reflection: Did your program work the first time you tried it? ______If not, was the problem related to the turns or distances traveled on the straightaways? ______How did you attempt to fix this problem? ______
______
LEGO WeDo 2.0 Math Challenge
Steer Car Equilateral Triangle Course
Skills Required:
Measuring in Inches
The Four Operations with Whole Numbers
Angles and Rotation Degrees
Dividing Decimals (Quotients ending in .5)
What to Build: Steer (12).
Other Materials Needed:
Yard Stick
Masking Tape
The Challenge: Program the Steer Car to travel around an equilateral triangle course.
Procedure:
All measurementanswers should be ininches.
1.On a bare floor use tape to form the perimeter of an equilateral triangle in which all sides are a yard and a half long.
2.You will program the steer car to travel once around the perimeter. The car will go counterclockwise, making two left hand turns. The car should finish very near to its starting point. How many long is each of the three straight sections? ______
3.The car “loses” about 9 inches in distance each time it begins a turn and each time it ends a turn. How far will the car need to travel on the first straightaway before it starts to turn? (add 9 to answer #2)______This number will also be the distance it needs to travel on the third straightaway, because this segment of the trip occurs after the final turn.
4.The second straightaway is before and after a turn. How far will the car need to travel on each of these two straightaways? (add the product of 9 and 2 to answer #2) ______
5.You will program the motor to turn at a speed of 8. If the car travels about 6 inches per second at this speed, how many seconds will it take the car to travel the necessary length of first and third straightaways (divide answer #3 by 6; write the quotient as a decimal)? ______
6.At this speed, how many seconds will it take the car to travel the necessary length of the second straightaway? (divide answer #4 by 6) ______
7.The sum of the measurements of triangle angles is always 180.
How many degrees is each angle? (divide 180 by 3) ______
8.To make this angle turning left, the car will have to make a turn (rotation) equal the difference between 180 (which would be a complete “turn around”) and the angle created by the turn. How many degrees will the car need to rotate (turn)? (subtract answer #7 from 180) ______
9.A complete circle is 360 degrees. How many of the car’s turns will make up a complete circle? (Divide 360 by answer #8) ______
10At the speed of 8 the cars makes a complete circle in about 10 seconds. About how many seconds will it take the car to make each turn (divide 10 by answer #9 and record a whole number quotient, ignoring any remainder) ______?
11.Now create the program forthe car, using all these numbers, and test it on the course. The car is allowed to leave the course as it is making turns, but otherwise it should stay near the course and end up near where it began. If your car does not complete the course successfully, modify the program and try again.
Reflection: Did your program work the first time you tried it? ______If not, was the problem related to the turns or distances traveled on the straightaways? ______How did you attempt to fix this problem? ______
______
LEGO WeDo 2.0 Math Challenge
Steer Car Equilateral Triangle Course (KEY)
Skills Required:
Measuring in Inches
The Four Operations with Whole Numbers
Angles and Rotation Degrees
Dividing Decimals (Quotients ending in .5)
What to Build: Steer (12).
Other Materials Needed:
Yard Stick
Masking Tape
The Challenge: Program the Steer Car to travel around an equilateral triangle course.
Procedure:
All measurementanswers should be ininches.
1.On a bare floor use tape to form the perimeter of an equilateral triangle in which all sides are a yard and a half long.
2.You will program the steer car to travel once around the perimeter. The car will go counterclockwise, making two left hand turns. The car should finish very near to its starting point. How many long is each of the three straight sections? 54 in
3.The car “loses” about 9 inches in distance each time it begins a turn and each time it ends a turn. How far will the car need to travel on the first straightaway before it starts to turn? (add 9 to answer #2) 63 in This number will also be the distance it needs to travel on the third straightaway, because this segment of the trip occurs after the final turn.
4.The second straightaway is before and after a turn. How far will the car need to travel on each of these two straightaways? (add the product of 9 and 2 to answer #2) 72 in
5.You will program the motor to turn at a speed of 8. If the car travels about 6 inches per second at this speed, how many seconds will it take the car to travel the necessary length of first and third straightaways? (divide answer #3 by 6; write the quotient as a decimal)
6.At this speed, how many seconds will it take the car to travel the necessary length of the second straightaway? (divide answer #4 by 6) 12 in?
7.The sum of the measurements of triangle angles is always 180.
How many degrees is each angle? (divide 180 by 3) 60
8.To make this angle turning left, the car will have to make a turn (rotation) equal the difference between 180 (which would be a complete “turn around”) and the angle created by the turn. How many degrees will the car need to rotate (turn)? (subtract answer #7 from 180) 120
9.A complete circle is 360 degrees. How many of the car’s turns will make up a complete circle? (Divide 360 by answer #8) 3
10At the speed of 8 the cars makes a complete circle in about 10 seconds. About how many seconds will it take the car to make each turn (divide 10 by answer #9 and record a whole number quotient, ignoring any remainder) 3?
11.Now create the program forthe car, using all these numbers, and test it on the course. The car is allowed to leave the course as it is making turns, but otherwise it should stay near the course and end up near where it began. If your car does not complete the course successfully, modify the program and try again.
Reflection: Did your program work the first time you tried it? ______If not, was the problem related to the turns or distances traveled on the straightaways? ______How did you attempt to fix this problem? ______
______
MathScience360.org