History Focus: Sound
After learning about how sounds travel through vibrations, Year 4 have been developing their understanding of some key discoveries in the development of devices to support people with hearing problems. They then used their oracy and reasoning skills to explain each discovery and explain which discovery they thought was the most important and why.
Following on from Eva's point, I think that the most important discovery was the telephone because this was the first step in amplifying sounds using electricity!
Plastic pollution presentations
Year 4 have been learning about the positive and negative effects that humans can have on the environment. They independently researched the harmful effects of plastic and also found out about important ways that humans can help reduce plastic pollution. They then created their own plastic pollution posters and presented their posters to the class using their oracy skills.
I need to work on my expression and volume when presenting to the class.
Solids, liquids and gases
After learning about the properties of each state of matter, our children have been closely observing different materials to decide whether they are solids, liquids or gases. They then used their scientific oracy skills to explain their findings to the class and explain why they thought the material was a particular state of matter.
'I think that the ketchup is a liquid because even though it is thick you can still pour it and it takes the shape of the container - it just pours more slowly!'
How do we hear sounds?
Our children have been learning about how vibrations travel through the air and reach our ears. They have focused on their spoken language, using their scientific vocabulary to explain the stages in hearing sounds, from the vibrations reaching our ears and hitting the ear drum, to the message being sorted by the brain!
'When the vibrations reach our ear, they hit the ear drum, which then starts to vibrate.'
'The cochlea contains a liquid which moves around as our head moves and helps us to balance. That's why our ears are important for walking!'
'I worked really hard on changing my tone of voice so that I didn't sound like a robot when I was speaking!'
'I need to try an improve my volume next time I present'