Scratch project on cube

~ ranjith

Here I have created project to show that solid shapes is made up of infinity sheet of surface in scratch. It helps children to understand the relation between area of square and volume of cube by looking at this program.

Run this program in turbo mode “press: shift + green flag ”

Unit digit of a cube number


8th graders in Udavi School were learning about the squares and cubes. This is a simple scratch project to show the unit digit of cube of a number.

Fraction multiplication V2

Link to V1 : 

From the STEMland scaling session with Swathi on Friday, the input received was to make the multiplication to be a perfect square to show that 1/4 is smaller than 1/3.

Murali from 9th grade implemented the change:


Session on Pi

~ Abilash

An interactive session was  given to the young students of TLC about Pi,  radius, diameter, area, and circumference. The class started with a brief introduction about each of the concept.

Later the students were asked to measure the circumference of the different objects that were given to them and which they found around them using a thread. The measured circumference was divided by the diameter of the same object, when divided they got some value near to 3.14.  From this session they were able to understand that the value of Pi and it is constant. The students were engaged and practically understood the concept of Pi, which they enjoyed a lot.


Arduino Extension for Scratch 3.0

Scratch 3.0 doesnot have the standard extension to interface with the popular open source physical computing platforms like Arduino. An extension was build to communicate with the arduino platform. Arduino Uno needs to be flashed with the firmata firmware from the examples. The scratch communicates with the arduino through a intermediate tool developed using the pyfirmata library of the python. This tool helps the kids to learn physical computing concepts easily. This same framework can be used for research on Human Computer Interaction. Also for building tangible devices. The customized version of the Scratch 3.0 and the Scratch linking software called ScratchBridge is released in the github page:


Scratch Madala at Aikiyam school


This week me and Murali went to Aikiyam to teach shapes using scratch. We started with the drawing a straight line. Then asked children to draw a triangle . Children took some time and then figured out the angle to draw a triangle. Then we asked them to draw the following shapes like square, pentagon, hexagon, heptagon , octagon. Then using this shapes we asked then to draw mandala. Children were interested to  draw their own mandalas . Children understood the concept of repeat loop. They were familiar with the  pen function in the scratch. Children were able to connect the angles for different shapes.

Visualising solid shapes

We,8th graders at Isai Ambalam school children started a lesson called visualising solid shapes in mathematics. We used sodo cubes to understand different views of  a solid shape.  Children have been divided into four groups. 20 sodo cubes were given to each group. One child from each group should make a solid shape using 20 cubes and should draw the front view, side view and top view. He has to show this views to his partner without showing the shape.The other person should make the same model by seeing drawings. Children enjoyed this activity. They were able to draw the different views of solid shapes and also make the shapes by seeing the views. But the question they had was how to draw the views if the model has holes. Then they came to the conclusion of using dotted lines to represent the holes.


~Saranya, Sundar and Madhavan

Here we have created project on multiplication using graph in scratch. It helps children to understand double digit number multiplication by looking at this program.

In that project violet is Hundred’s Green is Ten’s and Red is One’s.

Lines and Lines


2nd Grade at Isai Ambalam we were working on different types of lines. Children learnt standing line, slanting line, sleeping line and curved line. We split children into 4 groups and I gave 1 task to each group. Each group built different shapes example alphabetic’s, house and toys with some constrain, which is 1. they should use all the 4 lines. 2. specific constrain 2-standing line, 3 slanting line, 6 sleeping line and 1 curved line etc…

Children did creatively  they had done the lines task. Each group built different shapes and they worked together. I was able to see team work ex: one child drawing before pasting the stick on the paper another child giving idea to put things around and in, another child cutting the sticks with needed size.

Session on Brain with Inspiration Team(React, Respond, Realise)

~ Vimal, Abilash, Ranjith

An interactive session on the concepts React, Respond & Realise was held with kids to understand the various types of brain parts associated with these emotional reactions. Kids learnt about the types of brain and various functions these brain will do in our normal day to day life. Also they were able to relate these concepts with the story we have taken up(Maharaj Parikshith). All the kids are asked to draw the types of brain on their hand and on paper for better understanding.The kids came up with a lot of question on the topic, which were brainstormed and understood by all the kids. Every kid shared their learning from the session.