Category Archives: Categories for 2018

Egg Beaters

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Dear Bloggers,

Year 2 skillfully made egg beaters using a picture as stimulous material. They loved using the beaters in a large crate of water.

The extension activity was to design and make improvent to this.   Some students added a gear chain and using the large gear as the driver gear and a small follower the egg beaters spun faster. Many students added extra gear chains and created a mixer with multiple blades. A few students had the different mixers rotating at different speeds.

Well  done year 2.

 

Thanks for calling by

 

Mrs Garlick

Robot Moving Backwards and forwards using the ultrasonic and touch sensors.

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Dear Bloggers,

Years 5 and 6 added an ultrasonic sensor and touch sensor bumper onto their robot.  It was then programmed to move backwards and forwards. When the bumper hit the wall the robot moved back in  the opposite direction.

 

 

Thaks for calling by

Mrs Garlick

Stopping at the black line

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Dear Bloggers,

Years 5 and 6 programmed their robot to move forwards over a white ground and stop at the black line.  This involved finding a threshold value of % light reflected.  This was done using the view menu and measing the amount of reflected light that came from white and black.  These values were averaged and this value was used in the program. Here is video.

 

Thanks for calling by

 

Mrs Garlick

Follow That LIne

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Dear Bloggers,

Years 5  and 6 programmed their robots to follow a black line using a light sensor.  The secret was to follow the edge of the line.  The student sued the view menu and maths to calculate the threshold value for the % of reflected light. The program used a switch to make the robot turn into the line when it sensed white and turn out when it sensed black. Have a look at the video.

Thanks for calling by

Mrs Garlick

 

Sara’s Pet

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Dear Bloggers,

Last week the children made a dog for Sam.  This week their job was to design and make a pet for Sara.  This had to also have crazy eyes that could move: the  same and different ways and at the same and different speeds. Some of the designs were very ingenious.

There was a dragon with a terrifying jaw and long tail.

There was a bird with wings.

Tails wagged

Noses turned around and operated the pulleys to turn the eyes.

Space was created for passengersand much more.

Thanks for calling by

Mrs Garlick

Sam’s Dog

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Dear Boggers,

2CT and 2R made a dog with crazy eyes for Sam. The eyes were controlled by pulleys and a belt. The challenge was to make the eyes turn: same speed and  direction, same speed different direction,

different speed and same direction and different speed and same direction.

 

 

 

Thanks for calling by

Mrs Garlick

4/3 L and EV3

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Dear Bloggers,

Year 4/3 L are having a term of working with the EV3s. They have designed and built their own robots and now they are programing them to move forwards, backwards and turn using  Tank Bot and the steering slider.  Robots are being used with sensors as the ultrasonic, touch and lights sensor and these allow the robot to detect things in the environment and respond accordingly.  Bots are now following black lines and much more.

 

 

 

 

Thanks for calling by

Mrs Garlick

Rides and cars with 2R and 2CT

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Dear Bloggers,

2CT and 2R made a ride for Sam and Sara. The challenge was to design and make a ride that was capable of holding two people. Using different gear combinations, the task was to:

Make both of the riders  move as slowly as possible,

Both riders move as fast as possible.

Riders go in opposite directions.

Then, Sam and Saras mum’s car broke down, so the students had to design and make a new car for  mother.  They easily built these, but unfortunately the cars were unable to move up the steep hill getting to the ride.  Launchers were built so the cars could be propelled up the inclined plane. Student had to measure the distance their car travelled when they launched the car up the ramp.  There were two launchers with different sized axles. 2R and 2CT experimented to see which was the best.

 

 

Thanks for calling by

Mrs Garlick