Hello! I hope you are all enjoying this lovely weather! Continuing with my ‘memorable moments’ from my recent professional practice, I am going to be talking about a science lesson I taught to the year 4 pupils.
After Edge Hill introduced this idea in a Science seminar, I knew I wanted to try it with the children. It is a very messy activity… which just adds to the fun, right?!
The activity was based on the human digestive system as their current topic is animals and humans. The children had also learnt about instructions in literacy so this was a perfect chance for a cross-curricular task! Below are the instructions I put together to hand out to the groups of 3…
You are creating your own human digestive system. Every day materials such as the tights that you brought in, will represent a part of the body – so you need to use your imagination! You will follow the journey of the banana through the body, starting with the mouth.
You will need to do the following:
- Use scissors (the teeth) to cut the banana up in the cup (the mouth).
- Add a few drops of water (saliva). This will create a ball of food (the bolus).
- Push the bolus with a finger through the funnel (the oesophagus), and into the plastic bag (the stomach).
- Pour more water into the bag (this represents the stomach acid).
- Seal the bag (seal the opening to the stomach). Try not to trap air… if there is a lot of air in the stomach it creates a burp!
- Squeeze the bag to make the mixture smooth. Food usually stays in the stomach for 6 hours!
- Make a small hole in the bottom of the plastic bag with the scissors.
- Pour the contents into the tights (large intestines). You may need two people to ensure the mixture does not spill. Cut a hole at the bottom of the tights.
- Use your hands to wrap around the tights and squeeze the mixture to move it down.
- Make sure to place the larger plastic container (the toilet) underneath the hole (the anus).
If you are still on teaching practice or plan to start soon, I highly recommend this practical activity if you have the chance! The children were so engaged and absolutely loved it. Afterwards, they were able to talk through the digestive system and apply their knowledge by relating scientific terms to the everyday materials which they used.
Have a lovely weekend!!!