Day: October 20, 2019

Posted on

walky

  More partner works and tougher object to be done today.  We built a walker with a motor.  Since it is a hard one, they are working in pairs.  They show different ways of working as a group.  Some decides to work together at the same page and solve the same problems. Meanwhile some decides to work on different booklets to finish the project as quickly as possible. Once they know there would be a prize for the first one to finish, the competitiveness has risen. “It was lit” said by Roy.  The most common mistake they have made is the use of lock.  Either they forget to put one or the locks are on the wrong side of the leg. After a few pointers, they have managed to solved the problem and have fun.  They start racing and robot battling. 

Once again, IT WAS LIT

Posted on

DRAGSTER

   Today’s class, we made car fly.  After last week, students have better understanding of group works and they successfully finished their project.  It has four gears but each two of them are separated.  When the gears connect, the car is lifted and it starts to build up momentum.  When the gears disconnect, car flies away due to those momentum.  Other than our project, we had a pre-halloween Q&A contest about Superheros from DC universe and Marvel universe.  They all got their KitKat as reward.  

Posted on

Lego EV3 Self-driving Challenge

Welcome to the class seven. Class 7 and class 8 are combined to prepare the final challenge. The game rule is: the robot start from the home, follow the curved mountain road reach the top, looking for colorful goodies, pick one, then trace the same way home. Robot will earn 20 points to complete each task. After the race, we also judge the code by readable, comments, custom building blocks, and hope you save the project and program for future use. Two students make a team to take the challenge. They tried so hard, one team actually is able to finish all task within 2 minutes limit. Next week, we are looking for all team can finish the work and do a final show at the end. Thank you guys for helping out the class and cleaning after. 

Posted on

Go Fish

  Today is my last class with the students.  It has been fun and educational for Bothe side I think. I practice my teaching skills with them and they have been respectful. Final day ended with a fishing contest.  We have variety styles of fishes and different length of rods.  All makes it difficult to catch the fish.  There were some fun facts questions for them to get some candy as well.  The boys were dominant but the girl get them in the fishing contest.  Overall I love teaching this class and I will be back next semester.  

Posted on

Lego EV3 Cruise Control

Welcome back the sixth class for this season. Today we are working on cruise controller. The main task is to send speed command by pressing the touch sensors. Left one for accelerate the car, right one for decelerate the car. We can also display the speed on dashboard. We also introduced a very important concept, sub-routing(a program inside a program), in lego world, we call it “my building block”. The custom build blocks can help us reuse some of the code we built for the project. From now on, we can use lego pre-built blocks, or we can make our own. We used two in this class. For next two classes, we are going to use at least four blocks. There are no limits if you can build more functional blocks. We are going to introduce some simulated game rules. We will give scores if your robot can finish some tasks. Thank you again for your corporation. 

Posted on

Communication ECA Phase 1 Class 5: Pump and Run Flywheeler 20191009

Last week we build a Fly wheeler. This build had a complex set of gears right at the heart of the set, these took great precision by the whole class to build accurately. The flywheeler used these gears to connect the bottom drag wheels to a set of top wheels. By rolling the car you can speed up the rotation of the top wheels so that when you release the car the top wheels have enough momentum to continuously rotate the main bottom wheels pushing the car forward. The class enjoyed playing with this build afterwards and experimenting with the different sizes of wheels to get the greatest output of distance. Next class we’ll be building a car again but with a few motor upgrades!!!

Posted on

Lego EV3 Cruise Control

Welcome back Lego EV3 class 6. The objective for this class is to control the vehicle speed by using two buttons, same as real world cruise control in every car. How to change the speed setting value while the motor is running, that is called interrupt. The button click could interrupt the routing anytime, change the speed value up or down by 10%, then the motor execute the new value. We also introduced another useful tool is the user build block. It will help us to organize the main program better and reuse lot of codes. Next class, we are going to review all programs we already learn from previous class, see if you can save them into custom build blocks for future use. And we will prepare for the final challenge. 

Posted on

LDD

  LDD is a really money saving program that we can build Lego on our computer.  One thing that is not too convenient is that we can’t actually play with our finishing project which most of the kids don’t like including myself.  Since students have their parent with them to help, we have done  a good job.  Everyone followed up and understand the how to find the pieces they want and how to connect it.  We now have a concept on how to use LEGO Digital Designer and help our parents to save some money.  

Posted on

Lego EV3 Lane Following

This is the fifth class. Today we are revisiting the color sensor. We build 3 projects, and practice good coding habit- always make comments and notes for yourself or someone going to read about your code. The first project is stop at the red light. The second project add one more function to the first one. It stop at the red light, and go at the green light. The third project is a bang-bang line following robot. “Bang-bang” means if the robot see itself going too close to the black line, it will make big turn to the right, “bang”. If it is too far away from the black line, it will make big turn to the left, “bang”. That is the name come from. All students tested their robot on the track. That is fun time. Next week, we are going to implement cruise control to the robot, that means we can change the robot running speed. We can test on different map. Thanks everyone for help clean up the room. 

Play2Learn Education