Another month has flown by already and I’ve just finished my second Science week. I toned down the craziness for this month but we still had fun and the students were still excited!
My Pratom 6’s are away in Malaysia at an English camp this week, so I’ve had 8 less hours to teach which was nice! It also means I only had to prepare science week lessons for years 4 and 5.
Since Pratom 4 have just finished a topic on food, I decided to go with that theme and we did taste testing and locating taste buds. For the first lesson I taught them other adjectives to describe food ( At the moment it’s mainly delicious, or occasionally tasty.) So I taught them creamy, minty, fruity, greasy, bland, salty, sweet, sour, bitter and spicy. Then as a class they thought of foods to go in each column.
Each class ran the same way so for the day of testing I got the students to run through the list again, just putting hands up and shouting out answers, then picked a volunteer. He/She had to test 3 different liquids and describe them to me. Before I started I checked they weren’t allergic to anything nor minded having a blindfold on.
Then I fed them “creamy” “spicy” and “minty” liquids. This was milk, chillies in water and then toothpaste in water. The students thought it was hilarious when the volunteer had to swallow the spicy mixture, and again when they found out the blue liquid was toothpaste!
The rest of the students then got into groups and were given salty water (water and salt dissolved) Sweet water (water with sugar dissolved) sour water (with lemon juice) and bitter which ended up being strong tea. They were given toothpicks and had to test the water and say what each were, as well as colour in a diagram of tastebuds on the tongue.
Here’s the sciency part, or “fun facts” that I didn’t know until I researched the topic! Sweet and salty tastebuds are located on the tip of your tongue. Sour to the sides and bitter at the back. Girls have more tastebuds that boys, and usually there are over 10,000 in your mouth.
The kings class jokingly asked me if the salty water was from the sea and I told them yes, that I had collected it that morning from Songkhla. Their little faces were so cute with confusion, trying to work out if I was joking or not. Then a girl asked if there had been oil in it (Earlier this week there was an oil spill that damaged Koh Samet, an island nearish Bangkok, more info here http://www.theguardian.com/world/2013/jul/30/thailand-koh-samet-oil-spill-tourism) I told her I scooped it out before they tasted it! I think she realised I was kidding….
For the Pratom 5s we focused on eyesight and used a Snellen Chart to test their eyes .(The chart with the letters that get smaller and smaller.) I taught the students how to make their own one on a piece of A4 paper. The first line of letters is 4.5cm tall, second 3.1cm, third 2.2, fourth 1.8cm, fifth 1.3cm, sixth 0.9cm and seventh 0.7cm. I told them they could pick random letters or spell out words, but that the first line should have one lettter, the second two and so on, as well as leaving gaps between the lines. Once measured out they filled in the letters with black markers. I made them swap charts with friends then stand twenty feet away and try to read each others. If they can read the bottom line then they have twenty twenty vision. Most of my students could not read that line, as most people have twenty ten vision. Also students that had glasses on took them off and tried to read it (most got to the second or third line then gave up) then they put them back on and could usually read the rest. Good to know their glasses are working!
Also in my kings class one student chose the letter “W T F” to start their Snellen chart with. Bearing in mind he’s 11 and in Thailand I giggled to myself and gave him the benefit of the doubt and walked on, not saying anything. About 2 minutes later though I hear “What the F***” shouted by his friend back at him – so his friend obviously knew what he had written!
My Pratom 6s don’t have science week but starting monday they are learning about the Solar System as a full topic of 3 weeks so this should be interesting.
Didn’t get many photos this week, I was too busy teaching…