~Poovizhi, Murali and Arun
This week it was a large group of people in the meeting. Coordinators from Aikiyam, Udavi, Isai ambalam and AITI joined the meeting. Swati Sircar joined the meeting online. At first Sundar demonstrated Scratch projects on finding LCM created by 8th grade and program on Graph created by 9th grade children which asks the user to find the point and completes by drawing a bear. Then we listed few topics to discuss with Swati. Swati explained about Trignometry. She said we can ask children to come up with 6 possible ratios from a right angle triangle and map the names.
Then different methods of teaching multiplications
7×9 = 7×10-7
To explain and use multiplication in
- Repeated addition
- Cartesian product (Choices of combinations)
- Area (rows and column)
- Rate (price and qty)
Then we moved to Division and she explained how to spit 11/3. For example to draw three circles and draw apples in each circle equally and the remaining is the reminder.
Then we discussed about simplification. For simplification children need to learn divisibility rules for 2,3,4,5,9,10 and 11
Followed with we had a conversation on negative exponential
2^-x = 1/2^x
(1/2)^-5 = (2)^5
2^3 = 8
2^2 = 4
2^1 = 2
2^0 = 1
2^-1 = 1/2
2^-2 = 1/4
2^-3 = 1/8
~Murali and Poovizhi
STEM land meeting with all STEM coordinators
This Friday (29/11/2019) we had an interesting sharing session. Abilash, Ranjith and Sivaraman presented an experiment on Electrolysis through which they generated hydrogen from water using salt and electricity. It was new for us and we learnt how oxygen and hydrogen splits from water.
For more info on this click here
After this practical experiment, Sundar from Udavi Stemland presented a scratch project on a graph in which the sprite moves to a particular point and asks the user to enter the (x,y) coordinates. Once the user enters the correct coordinates, it moves to the next point and so on. If the user completes until the end it draws an image.
To have a look at this project, Click here
Following this, we had another scratch project on algebraic expression. It is a game where the user is supposed to find the value of the given objects on both sides of a weighing scale.
~ Murali and Poovizhi
Sundar (Udavi school STEM land coordinator) gave a demonstration on learning Algebra using weighing scale. He used few sketch pens and weighing cubes (1gm) . For example one side had 10 grams and the other side had 5 sketch pens when both were weighing equal. He asked us to find the weight of each sketch pen. Then we discussed and solved few such examples in solveme and came up with all possible algebraic equations.
Saravanan from Aikiyam school had brought a star tetrahedron in which children had learnt about pyramids and triangles.
Arun who is coordinating with AIIT explained about parallelogram and showed how a rectangle can be formed by bisecting the angles of the parallelogram.