Today was fun as we journied through the Body we came to yet another Body System
THE EXCRETORY SYSTEM….
This was FUN…..first we read our text, then did some hands on naming and recalling using some great TPT resorces from Curly Cue, gotta love foldables, great for our Year Books.
Isaac began a detailed diagram about the interchange of waste and products in the Kidney while Esther and I had some fun creating the insides of a Kidney with plasticine…. Even I leant some details! Did you realise after the water is extracted from the large intestine it mixes with the blood and then goes to the next cleaning and filtering station the kidneys (I did not know that!!) This is the final filter and extration before out she goes!
As we recreated the kidney we discussed the functions, duties and names of her parts and asked bizzarre questions like, “Why is the adrenal gland on the kidney?” I still do not have the answer except I am guessing that every bit of blood eventually gets to the kidney so that is a great place for quick hormone release and quick secretion into the blood? Who knows….I am just guessing now….
We then had a break and I set some items in place for them both to create a WORKING model of a kidney an idea I snatched from these two websites, except they sorta directed the kids, I reckon they might think about it more if they have to design it. Here and Here
I set out an array of netting, filter papers, bottles, sieves, straws, balloons, string, pegs, palstic gloves… and more. Then set them their assignment a working model of t he Excretory System. YES with real (kinda) urea.
They talked and designed and thrashed out functions, they came up with a pretty good design I thought.
Excretory System Models Parts
Kidneys- 2 cut of bottles, filter papers as the filtering system
Urether Tubes- Bendy straws attached to the bottle with blu tac
Bladder- Glove with fingers stuck around it and it sitting in a funnel, the onle finger left was one with the tip cut off, that then extended through the neck of the funnel.
Urethra-Funnel with bladder sitting in it and a finger through neck
Sphincter Muscles- Peg holding the urethra and twisting the balloon
A bucket for a Loo, Esther even got into the flow by printing a toilet. Engagement!
Very clever I thought! Appealed to both age groups and really got them thinking and really processing the functions and how you could replicate them. I was happy. Good day in the blue room!
In the end the question remains….will they retain it? I say yes, the more hands on I become the more retention the seem to have. Super simple!