Yesterday we had STEM land meeting with all the coordinators of different STEM land and STEM land math teachers. Sundar presented a scratch program for fraction. Later we were all given small booklets by Azim Premji University on each topic like Addition, subtraction, multiplication, measurement. It had different activities that could be done with children in learning the concept. We agreed to read the booklet and present what we learnt from it make a model of it and present it to others in the next session. For some time we all read our booklet in silence and took notes.
Then shared about cyclic number which he read from his book which was new and interesting for all of us. The cyclic number is the following
1/7 = 0.142857
142857 x 2 = 285714
142857 x 3 = 428571
142857 x 4 = 571428
142857 x 5 = 714285
142857 x 6 = 857142
142857 x 7 = 999999
And the other one was to find the pattern and come up with an equation
Most of the children who come to STEMland can solve 3×3 Rubik’s cube.
We now have bought 4×4 Rubik’s cube and this made a few of the students curious. Now 3 children from class 7, 8 and 9 can solve 4×4 cube. This only took them for about 3 weeks to figure out how to solve it.
Following is a video of a child (padmanaban) from 7th grade solving 4×4 cube. He solved it under 2 minutes.
Teachers and children from Creative school Bangalore visited Auroville mid-December 2019.
Some of our STEMland teachers had already visited this school last year for a Learning network conference (refer to our previous blog)
As part of their visit, they also visited Isaiambalam school. Children first introduced their names and different favorites like color, food animals, etc. It was fun for the children. Then children were divided into separate groups led by teachers of Creative school. Children did different activities like drawing, movements, etc.
Solving Rubik’s cube has always been a challenge for me, and I was never interested in solving it. But few weeks ago I got the opportunity to learn the cube. Though initially I didn’t know how to solve it, I was able to learn to solve the cube after spending 4 to 5 hours. I was asked to take Rubik’s cube classes for the 6th graders in Udavi School, so every Thursdays , I spend 40 minutes taking class for them during my lunch break.
The students of Deepanam and Last School were also interested in learning the Rubik’s cube, so a class was taken for them to solve it. During the session I was able to notice that the students were really patient, focused while solving the cube and were also helping each other, this made me feel accomplished and acknowledged.
On December 17, we met Dr. Kota Harinarayana who is the Father of Sriman Kota who works with us in Quilt content team. Dr. Kota Harinarayana headed a determined team that tested the first flight of the Light combat aircraft(LCA). For more info click here
We started our conversation by introducing who we are, what we really care for and what we do in STEM land Aura Auro Design.
Dr. Kota Harinarayana shared about his dream of using technology to aid agriculture that reaches farmers at ease. For example using Drone for capturing images of the field for image processing using AI to overcome the disadvantage of using satellite.
At the end of our conversation, we all felt grateful and acknowledged.
Me and Murali went to Aikiyam STEM land and gave a session on Geogebra. We started with asking children how to find the area of the square and rectangle. Children started tell all the misconceptions related to the topic. Children told all the key word that they knew. Then i drew and explained on the black board. Murali then explained and showed step by step to the children. Children understood how to find the area and perimeter. we wrote few questions on the black board and asked them to draw and to find the area using Geogebra software. Children learnt the unit to find the area. All the children were able to build build and solve the questions . Children also understand how many 1 cm / m square can be fit inside for the given area. The session went really well and children were able to find the area and perimeter at the end of the session.
On the day 2rd Dec ’19, I made three presentations for RAMA, HANUMAN, and RAVANA . The presentations were mainly focused on the DO, THINK, VALUES of the three characters in the Ramayana epic. Pointing outs were done with our inspiration team.
In Stem Land, we were doing Electrolysis experiment with water in order to explain the children how the electrolysis process works. The Materials that are we used to do this experiments are the following. Salt water, aluminium foil, copper wire, voltage source and two plastic glass. In this experiments water is the best method of producing high purity hydrogen gas. The most important element of the generator is the electrolysis cell where the electrolysis reaction takes place.
The cell consists of two electrodes (an anode and a cathode), which are separated by the ion exchange membrane (salt water). When a continuous 12 voltage is applied to the electrodes on the electrolyser cell, the following reaction happens:
Anode 2H2O – 4e = O2 + 4 H+
Cathode 4H+ + 4e = 2H2
But in-order to produce the highest purity of hydrogen up to up to 99.9995% purity, a platinum catalyst is used at the electrodes.
The students were very focused and eager doing the experiment and were coming up with different concepts.
There were around 20 kids from 6th std above. Thamarai facilitators said that they wanted to teach mathematics using materials. To start with basics we used Dienes block to visualize the arithmetic operations. Children learnt about cube, rod and plate and recalled place values . I wrote the numbers and the operator on the board and asked children to find the answer for it using Dienes block. Children were split into four teams and worked as a team. Facilitators also learnt along with the children. Through this, children got clarity of how carry over works and why do we carry over , borrow and whether we carry over ones, tens or hundreds based on the place value.