# Izak9 Workshops

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Franz from IZAK9 came to visit our school during science week. He showed the pupils, teachers and parents how to use the IZAK9 cubes. What a fantastic new mathematics resource we now have in our school.

# 2nd class Investigates :The Science of Sound

Experiment 1: Count the Taps!

What were we investigating?

Do sound waves travel better through a gas or a solid?

What did we do?

We learned that the air that we talk through is a gas and it can be interfered with by things like the wind.

We tested to see if we could count a tapping noise more clearly if we listened with our ear on the desk.

What did we learn?

In a solid you can hear the sound waves clearly. We weren’t sure however, if they were clearer.

Experiment  2: Making Rice Jump

What were we investigating?

Can we see sound waves at work?

What did we do?

We placed some cling film over a bowl and then placed some rice on top of the cling film. We then banged a drum close to the rice to see if the sound waves could make the rice jump.

What did we learn?

Even from a distance away the sound waves travelled from the drum hit the cling film and made the rice jump. Even though they are invisible we can see the force moving the rice.

Experiment  3: String Phones

What were we investigating?

Can we make a “phone” to send a message from our class across the front of the school to Mr Scott’s room (Room 5)?

What did we do?

Step 1: We designed and made our own string phone’s and tested them to see if they worked.

One group tried putting two strings in their phone.(It didn’t seem  to work any better)

Step 2: We measured to see how far apart our phones stretched and we tested to see if the sound got weaker on the longest phones.

Step 3: We then made another test string phone 4 metres long and we tested to see if it still worked.

Step 4: We measured the distance from our classroom to Mr Scott’s using a trundle wheel. It was  21 metres and 61 centimetres window to window.

Step 5: We made our new extra-long string phone. We sent a group down to Room 5  to listen for the message and left  two children in our class to call  it out.  Nobody but the callers knew the message (It was: “ Ireland are going to win!”).

Step 6: We  decided to do a final test to see if we could “listen in” on the line between the two classrooms.

What did we learn?

We learned lots but the most important bits are:

• The string has to be pulled tight for the phone to work well
• Putting two strings on the phone might actually make it harder to hear a message.
• The quality of the phone does not diminish between 1 and 4 metres.
• On a very long string- phone the message isn’t as clear as on a short one but we were still able to  work  out the message that was transmitted.
• By attaching another string to the main line we can “listen in”.

# Fourth Class Friction

We had great fun in fourth class today investigating friction. We tested a variety of different surfaces to see which had the most friction. We rolled a toy car down a slope and and then measured the distance it travelled … Continue reading

# Things are Heating Up in Room 4!

In Room 4, we have been very busy looking at how heat can change things.

We have discovered that when you make a solid hot, it usually turns into a liquid. We observed ice melting into water and we saw how jelly cubes melt into a liquid when you add hot water.

Because there are so many class birthdays in November in our class, we wondered if there was a way for us to melt our jelly cubes quickly. We decided to melt 6 big cubes of jelly and then melt 28 tiny jelly. We monitored our water temperature using a thermometer and we made sure that we used the same amount of water in each bowl. We all made our predictions, then our race began!

Can you guess which cubes melted faster?

# Coding Week

We were very fortunate this week to attend a coding workshop in school. We learnt how to code and programme bee-bots. Take a look!

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# Maths Challenge: First class vs. Fifth class

As a part of Maths Week, 5th class, Room 7 have come up with a number of word problems for all of the students in first class to solve. This morning, the two classes met and first class proved their worth as they solved over 20 word problems together.

On Friday, 5th class plan to come back with problems that are even more challenging. We can’t wait!

# Constructing 3D Shapes

This gallery contains 26 photos.

We had great fun in Third class today constructing 3D shapes using plasticine and toothpicks. We had to construct some different 3D shapes including cubes, cuboids, triangular prisms and square based pyramids. We also had a go at creating some … Continue reading