We finished off our science topic about sound, this week, by creating our own instruments. The children had to make an instrument where they were able to change the pitch of the notes. I was very impressed by the thought that had gone in to their instruments - one child even came in armed with a plan of how they were going to make it. They worked really well and helped each other to make their instruments.
After the making was over they then looked at the science behind them - what was making the 'strings' or 'pipes' make a different pitch.Using their knowledge from last week to help them they discovered it was to do with the tightness of a string or the length of the pipe.
Today, we were practicing using sentences of three for action. The class were writing a page from a diary as though they were Hogarth (a character from the Iron Man).
Here are some examples of the super sentences they came up with:
I dashed home, went in the house and told my dad.
The great Iron man lifted his great iron foot, stepped in to the air and fell.
First of all, the Iron man ate some tractors, went home and got trapped.
I raced back home, told my dad and told the other farmers.
The Iron Man tripped on a cobbled stone, fell face first on a cliff and fell into miniature pieces.
The Iron Man lifted a heavy iron foot, let it go on the bone hard ground and roared at the top of his voice.
So I ran as fast as I could, tripped over and got into my house.
The Iron man walked past our house, ate our care and is now heading to the village hall.
We got ready, ran into the forest and waited forever!
Next, my father found out, he made a trap and evenutally the iron man fell in to the huge pit.
Here is an example of a whole page from a diary:
Today I was going to the lake and I suddenly saw a flashing light. Then I quickly turned around, ran to it and gasped! There standing a few yards away from me was a giant iron monster standing the trees. I zoomed back to my dad, stumbled on the log and panted...monster....in trees...near us! My dad and his other farmers ran to my house and discussed their plan. Then I saw them rush out, get in their diggers and make a giant hole.
Next week the chilldren are writing their own short story about defeating a monster. Hopefully they will use some sentences of 3 in them too!
Today, the children looked at pitch. First of all they established what the word pitch meant when they were using it scientifically.
Can anyone remember? Was it:
Then, in pairs, the children investigated how to change the pitch of three 'instruments', (rubber band, bottle and ruler). They quickly identified what they needed to change with each instrument in order for the pitch to change.
Finally, they investigated one of instruments further. They discovered that the more water you put into a bottle the higher the pitch, when you blow across the top of the bottle; the farther they stretched the elastic band the higher the note and the more a ruler is on the table when it was twanged the higher the note.
Next week the children will be making their own instruments to explore other ways they can change the pitch and explaining why they think it happens.