I-smart class inauguration and the night before it

On Saturday we inaugurated the Ismart class room in Udavi. 9Th std children from Udavi and children from Isai Ambalam had a sleep over on Friday to decorate the place. Children from Isai Ambalam brought their projects to demonstrate during the inauguration. They were so excited to see the Ismart room. They kept all the chairs out and cleaned the room. Then they all went to STEM Land and brought all the electronics components and the materials to the smart room. Also they took the mindstorm and the games with them and kept in the room. All the children and the facilitators played a game where they were split into pairs and shared three things about them to their partner. Then each one of us got up and shared about our partner to everyone in the circle . It was really great to play the game through which the children from Isai Ambalam and Udavi came to know about each other and formed a good relationship between themselves. Then children shared what they learned and enjoyed in STEM Land and they explained how the mindstorm works.

They played games and were enjoying. They even chose their place in the room to present their projects for the next morning. Later everyone had dinner and got freshen up and watched a Ratatouille movie. Then it was time to sleep and everyone went to sleep. The next morning children got freshen up and split their work among themselves. Some of them decorated the the place using colour papers and some of them made a Rangoli in front of the room and beautifully coloured it. It was interesting to see children taking up responsibility by themselves and giving their best. The inauguration was from 10.30 to 2.00. By 10.30 A.M 8th std children came with their projects and games and organised their place. They decorated the Rangoli with colourful flowers and inaugurated the room by lighting up the candle. Every one were informed the purpose of the I-smart class and each one of the children, facilitator, volunteer and guest lit up a candle and started the day. It was nice to see all the candles floating on the water gently as everyone went around the room and explored their learning. Children gave lot of effort to complete their projects and to record them. Their recorded projects were played on the projector and children were challenging the guest and the volunteers to play games with them which was the fun part. A volunteer who came to learn programming had also did a project in scratch and presented it. Isai Ambalam children showed their EBD on honey bee and their bamboo torch, Udavi children showed their mindcuber which solves Rubik cube, mobile applications that they have created, visual representation of algebraic identities, puzzles and games. The I-smart class was filled with technology and logical thinking which inspired everyone. Then everyone had some snacks. Then the 9th and 7th graders came with their projects and replaced 8th graders. They lit up the candles one by one and started their presentations. Everyone enjoyed the day and were really impressed by children’s growth and their interest towards technology and logical thinking.

Isai Ambalam Pond

In Isai Ambalam school for one week there was no water. The bore water didn’t work. We started having a conversation how to over come this problem. During that week it rained a lot. Since it is a slope the water didn’t stay there. The ground was wet. Children wanted build a pond. They started digging the behind Sanjeev’s house. They measured the length of the pond. Then they started digging the pond. After digging they wanted to cement it. Children started buying bricks and cement bags. During sleep over we started cementing the pond and it was really a good experience with children.

We started with the first layer of cement and let it to dry. Then fixed chicken mesh on top of the first layer. We added mesh to prevent cracks. Then again we started add cement as a third layer. Then the pond didn’t look nice without a boundary. So we bought bricks with the children and started making a cylinder shape. Finally we smoothen it with cement. After that we wanted to leave make a sitting bench. We built a sitting bench.

Then we inaugurated the pond by leaving the fish in the pond. We also estimated how much cement bags were used. We learnt to find the volume of the cement bag and the pond. We also learnt to use the mason tools. Children were able to do in a group and everyone had equal opportunities to share their work.

Half wave and Full wave rectifier

I made a model of Half wave and Full wave rectifier using LT spice.

Half wave rectifier:

A half wave rectifier is a device which makes use of properties of a pn junction diode. A PN junction diode only allows the current when it is forward biased. When it comes to real life application we need DC voltage. This circuit converts AC to DC voltage.

Full wave rectifier:

A full wave rectifier uses two PN junction diode which is more efficient and burns less power. It uses both the cycles of the AC wave and gives a smooth curve.

Before – After Images of iSmart Classroom

                                                                                                                                             – Bala Anand

During construction:

The lab in iSmart classroom

Work space getting its false ceiling done:

After completion of work:


Evening at iSmart class and sleep over at Udavi

The day before the inauguration of the iSmart class room we had a combined class with two school children the 6th and 7th from Isaiambalam and the 9th graders from Udavi school.

The evening started with a circle and introduction of each others names.

Then the 9th graders from Udavi school had given a list of things they were willing to do that evening from mindstroms to strategy games and scratch programming.


Hema sundar and Kabilan worked with the mindstroms sets and the older lego nxt blocks with the younger children.



Naveen playing bounce off with a Arham.






The tables were arranges so that every couple of minutes the children were asked to switch tables, so as to see all the materials that were being worked on.

Spinner: MIT app inventor

A child from 7th grade made a spinner using MIT app inventor. He took 3 weeks to complete the project.

MIT app Inventor: It is an application where you can make mobile app. It is similar to scratch where you can stick blocks.

The child shares his experience in the video and how he made it.


Routing Ethernet Cables

The 9th grader at Udavi volunteered to paint the new Ismart class room that is being built in the factory side of the Udavi school campus. Which joins along with the Aura Auro Design Lab.

The new space required LAN connectivity.

The LAN cables where already routed to junction boxes which had to be clipped and fixed to the 24 model switch box.

(The box varies from brand to brand, Legrand is easy and takes less time to clip to the individual sockets but is ~ Rs 150 per unit that is 3x larger than other brands) The one that was used required more fine work of screwing and unscrewing individual wires of the CAT 6 LAN cables.


Vignesh connecting a socket box
Velmurugan connecting a socket box



We used straight connection for crimping the rj 45 connectors to the switch box






Then finally we tested if the wires were connected properly with a testing probe.


(The device had eight LED’s that would be connected to both ends of the cables. One of the device was the master and the other was a slave. The master would send a signal for each of the eight wires present on the CAT 6 cable and the slave would light up LED’s accordingly)

Visitors to STEM Land

We usually have visitors to STEM Land and this week around 20 trainees of the Puchki program(trains teachers to take up environmental aspects) in Auroville had come to STEM Land. They were so excited to see what the children were doing in STEM Land. They were also happy to see how things were organized in STEM and how children learn. They said that, the way children worked here had really inspired them to learn more. Children solved the rubrics cube, demonstrated Lego mindstorm and showed their projects made in Scratch and Geogebra and also explained to them how what they did works. The visitors also put on their logical thinking hats and worked on a few cast puzzles. They saw some children de-soldering the old project kits at the soldering station also asked a few questions to the children about it. The room was filled with lots of energy and eagerness to learn and there I realized the purpose of STEM Land to learn, grow and teach.

Vaughn Cube

During Maths class children were having difficulty in telling tables quickly. Our children were able to tell tables in order but it was difficult when it was random. So we started using Vaughn cube. Vaughn cube is a set of videos which help children to tell tables quickly. We started using the it with 3rd and 4th graders. At first children felt interesting. It middle they felt it was boring because the videos were so long. Then we started to use cards that has been taken from the video. when they started with 3 table they couldn’t tell the  number or answer in 3 table. Later when they started noticing the pattern. They when i asked some question they use to tell the object that is present between two number. Once they know all the object they use to jump here and there to tell the answer. They really felt happy that they were tell all the tables from 1 – 10.  To tell the tables they need to know 28 objects. Next they need to know between which number certain object should come . Once they knew that they were able to tell tables. If we follow the instruction in the video it will be boring. Vaughn cube should be used in short time and if extended for long time children feels boring. Children wont  wait for the  teacher to ask the tables. They them self  pair together and ask tables in random order.