# Melting Pot

This term we read a book called the melting pot.

Its set in 1903-4 in Sydney it’s about a boy who’s dad is Chinese and mum is English.

Kids at school tease about being Chinese. And he slowly learns about how Chinese people are not wanted and apart from his struggles he has to deal with his ignorant cousin and his Chinese side. Recommend for 8-9 year olds.

Rating 3 out of 5.

# micro worlds investigation

This week year 5 has been doing micro worlds we had to make quadrilaterals but squares and rectangles I chose a parallelogram and a trapezium. We had to figure out how much the angles are worth. I figured that because quadrilaterals are worth 360 degrees and each two corners are worth 180 degrees and one 45 degrees and one 135 degrees.

And the parallelograms were a mix between 125, 90, 45, and 135 degrees.

The parallelograms angles were harder to get

then the trapezium.

Session 2

Today we started by getting a spot on the floor and Mr mickie read out commands then after he read them out we had a guess at he had commanded he had commanded an f.  learnt about curved lines and to make a curved line.

Then we had do our initials mine are j and m so would have do a curve in the j.

# Rube Goldberg

On Friday 21st of April the year fives  designed tested and re-designed and re-tested Rube Goldberg machines. A Rube Goldberg machine is a complicated machine to do a simple task our task was to put a piece of paper in the bin. We had to do a design first, our design involved an inclined plane [ramp] in the design we had wheel but we used a masking tape roll. Then that would roll onto some student planners giving it a chain reaction but student planners wouldn’t knock over and we found it was because there was bulldog clips at the top of them meaning the weight was at the top so we flipped it over so the weight was at the bottom so it would it would tip over.  Then it hits some blocks of wood which has a ping pong ball on it wood knock over some more  blocks which has the piece of paper balancing on it would fall off the table and in to the bin.

Session 2

Today we got into our real groups of three and started planning. We put down our materials the purpose the simple machines in it and our ideas.

Session 3

Today we were drawing designs in our books we listed the things from session 2 and we  arranged the way we would put it and we would get the materials. We started building our simple machines.

lever and fulcrum

inclined plane                                                                       pulley

Session 4

We had to rebuild the pulley and added some to the lever and then started building.

Session 5

Today we were building our machine we followed our design and we used the table to rest our inclined plane on, then we put it through the hole in the chair. The marble would roll down the inclined plane then into the pulley, but we had difficulty getting the pulley on the right height but then we had an idea we put the container from the pulley onto the inclined plane so it would go straight in. Then the pulley was supposed knock the lever.

Session 6

We moved places and added some more onto the lever. We also changed start with the inclined plane we stuck to the table then put the pulley on the table so it would lean over the end of the inclined plane, and then marble would roll into the pulley.

The pulley was to heavy to stand on it’s own because we put this thing for the string to go through and it was a bit heavy so we put a sticky tape dispenser to help even it out.

Here is a video of the start of our rube Goldberg machine

Session 7

This was our last day of rube Goldberg and we still needed to finish our machine, we had trouble getting the dominoes to hit the ping pong ball but then we figured if we put the ball closer it would be more likely to get hit and roll off. We had to know where to put the lever so the ball would hit so we tried a few times and found roughly were it would land so it would rebound and knock the bell.

Here is what we got.

# Kites

On Friday the 12th of may we did a maths activity on kites, we had to try and make one with out the instructions and we couldn’t. But then we were shown instructions and made them then we had to find out what the angles were and there values. There was two obtuse angles one acute angle and a right angle. The values for the obtuse angles were 112.5 degrees, the acute angle was 45 degrees and a right angle is always 90 degrees and they all equal 360 degrees, here is our we found this out.

We were told that we needed to show how thinking in a different way.

# Simple machines

On Monday the 1st of may we started our simple machines rotations. Today we did pulleys, we had instructions there was a single and two ways for the double they needed to have some wire you would curl the wire into a hook the hook would go into a pulley things and then we would get some rope and tie a knot and loop through the cotton reel. Then we  had to spike the wire through a plastic cup then we stuck onto a wall and put the marbles in it. Here is the video.

Session 2

This time we are doing Lego marble runs. We got into groups of twos and three and we picked some instructions we only could use random blocks. Ours was sort of like a tower and it kept going up. And then a little jutted out.

It got this high then it told us that we needed to make a little paper basket.

And we also had to put another piece of paper on it and a small pulley then had to marbles one would go on the long piece of paper and the other would be dropped into the releasing the marble on the longer piece.

Session 3

This time we are doing knex, we got into groups of three and picked a simple machine from the instructions we chose a convey belt.

We got the knex that were in the instructions

Then we started building we had to do the base which holds the rolling part of it.

And then we added the spinner. After that we added these little black knex that goes around the whole thing.

Session 4

Today the aim was to join another groups machine, the joined machine didn’t work though. I think it was because our machines weren’t in the wright position and it didn’t set off all the time.

# robotics

Session 1

What is a robot?  What is a program? Why do you think people invented robots? What do you need to build a robot?

My answers are in the link below.

Robot Questions-y64wdj

Session 2

Today we got into groups of three and built our robot. First we had to get a robot wheel.

Then we  had to build onto the wheel, there was two wheels and there were the same instructions for the wheels then we joined them together.

Session three today we were told that we had to draw our robots and have a lot of detail I did my sketch from a side on angle.

Session 4

Today after we finished our sketches we all looked at the Lego mind storms app and fiddled  around with program options. Then we went back to our group and did some programs and made our robot spin around and go forwards and backwards.

These are my  programs.

Challenge 2

Our second challenge is to go around a baseball diamond in three different ways.

My program told the robot that the steering was going to be round corners and that it should turn on a 90 degree angle, and only one wheel move when going around corners.

I also put in that it has 100 percent power. And I looped it which makes it repeat so I repeated it for four corners.

Challenge 2 Part 2

Following on from challenge 2 we had to go half way around the diamond then turn it around and come back. This is my program.

Challenge 3

Today we had a new challenge. The teachers showed us sensors for the robots there was colour sensors, light sensors, gyroscope sensors and movement sensors we used the colour sensors we stuck them onto our robots and we started testing them out.

Colour Sensor

A colour sensor is a sensor that when it sees a colour that on it’s program it will spin our what ever it’s programed to do.

Our challenge for it was to go to a colour then spin around 180 degrees then go to another colour.

Touch Sensor

Ultra sonic Sensor

# angles investigation

On the 20/4/17 we did a maths investigation with angles, we used angles on a games in maths pack 1 to do with angles. It had protractor the protractor  was 180 degrees and line you move the line around the protractor which had two sides. It had a blue side and a red and the line goes around the red and blue  each have 90 degrees, and there are boxes which have the answers to the angles you have cover them up and guess the angles.

I learnt how to use a protractor and how to use it to found out different  angles.

Session two

We also did another activity in a books we used 360 protractor and we had draw triangles the angles had to had up to 180 degrees or something close. We did do some other stuff with angles too we got a circle of paper folded it then cut into thirds and see if it added close to 360 we also did it with 180 degrees you just have to cut it in half.

# Craft Power

On the 20th of March our class had a wood work session with Anatoli and he taught us to make wooden cars and drivers. Step 1  You get the base of the car then trace it onto a piece of would with nothing on it. It has to be a fine piece of wood. Step 2 then you got to saw around the tracing and you’ll have the base. You need to use a coping saw because it is a fine wood. Step 3 you sandpaper it so its smooth Step 4 then you hot glue a friction motor on the top and you also hot glue the wheels. Step 5 the next part of it is to make a driver you do the same thing as the car you get the base and trace it out, after that you can draw a face and put clothes on it.

Step 6 you get a small piece of wood and nail your driver into the car.

Step 7 Hot glue the driver onto your car and your done.

Step 8 paint it then you have a wooden car.

Today we tested our cars on three different surfaces, and recorded the distances.

The surfaces were flexi pave [ tennis courts] carpet and the grass on the oval. You had to give to three pushes on all the surfaces. On the tennis courts my car went 3.2 meters, on the carpet mine went 2.21 meters and on the oval my car went 2.86 meters. Then we had to  do a reflection and see which one went further and why? I think that the car  went further on the tennis courts because there is less to slow it down because on the carpet and grass there is more friction compared to the tennis courts. Then we did a graph on it here is a picture.

wooden car investagion-znc42q

On the 24th of February we did an addo  investigation.  Addo is were you have a 3 by 3 grid and you have two sets of cards with numbers between 1-10 and you both pick out a card and add them together and if you have the number on your grid you cross it off and its first one to get three in row wins. We had to try and find the best addo board and we found that the numbers that would come up the most are in between 6-14 and the most popular numbers 10 and 11 so you put them and the other ones around the outside this is my board.

# Rollercoasters

Roller coaster

Session 1

Today we started designing a roller coaster we looked at some videos to help us get some ideas I looked at this one that Mr Mackie put on the class blog it was about kinetic and potential energy, potential is energy that can create energy and kinetic energy that’s working.

this is my design.

Then we started building our roller coaster I started to get some tube and stick to the chair and make some loops to see what we needed to do I found out that I needed to make Sure to make it have enough momentum to go round the loop. So we started finding to get enough momentum.

Session 2

I started building again and I started using some different materials and here is some pictures

We tried to put the loop at the end but that didn’t work.

Session 3

This time we started trying to get long to have the momentum

Here is a video of what we have done

Session 4

Today we had to do a detailed design showing how our roller coaster works here a picture of mine.

Then started building support

Session 5

Today we were trying to get the support to hold up the tubing but we couldn’t get it to work so had to build another piece of support to help it. We put a funnel in it to see if that would work.

Session 6

Today we managed to find a way to hold the loop in the knex support.

we wanted it to have a jump so it would have momentum about it didn’t have enough kinetic energy. We need to find a spot for our loop.

Session 7

We have changed our design so it has a good speed to get up the loop.

We made so it had enough centripetal force.

These are the important components that keep it together.

This holds up the first bit of tubing and also holds the some of the second piece.

This is the other important part of it because it holds the loop and the tubing that makes the jump into the funnel into the funnel and we have marked where it needs to be so it goes in every time.

Session 8

Today we had to join our roller coaster onto another roller coaster, the group we joined has a box with a tube going through it and the loop is at the end then there is a connection area then it goes down into ours.

this is the whole roller coaster.

this is the roller coaster we                                                                      joined.

We had to try and make them join so we

put a knex support tower and a put some tubing and a pencil to hold it together.

Here is a video of what it looks like.

We had to measure the distance between the tubing and funnel it was 47 centimetres.

Today we were told that ours is water slide because it just ends there and doesn’t go back some where, since we knew that ours wouldn’t have enough kinetic energy to make it back we made it turn around go back a bit.

Session 9

Today we were had to make it more consistent so put a back board on the box were it lands.

Here is an explantry video of our roller coaster

During the session we went around and looked at everyone else’s roller coasters to see what they were like.

her is the finished version of our roller coaster there are our designs and videos and slide shows to show people what design looked like, some were of my part of the roller coaster and some of the part of it.

What I learnt

I learnt a lot of things during this especially about your design compared to your construction and that you don’t much tubing, and you have to pick a good group to join.

I really enjoyed doing the roller coasters because it really challenged us to know what we need and  that it is quite hard making your own and then joining it to another groups.

I thought it was good experience because we now what to improve on for next time.