Learning scratch

The 7th graders (2018-2019 batch) had stepped in for their Mathematics class for the first time in STEMland this year.  They took their own time and became familiar with filling their weekly plan and updates on the laptops. They saw their seniors work on projects and were eager to learn, some of them took the courage to approach and did learn a few blocks in scratch and got the feel of it, but had a little hard time on expanding their code. They often started to play around with the back ground painting and changing colors of sprites, but the coding part was still a little confusing.

The previous batches had a guidance course into scratch and that had kicked started their projects.  I had thought to do something of this type and get the current batch flexible with programming too. Then as a team we decided to create diversity in the class and  put up an announcement for all those who were interested in attending the course  to sign up. 5th graders from Isaimambalam had shown interest and 8th graders from Udavi along with the interns in STEMLand the course began.

All the participants were eager to code and make the computer do what they want rather the vice versa. Pairs were made on a mix up of boys and girls, young ones and elders, interns and students. Each day started with a focused goal and how to broaden it when attained and make the program more flexible.

Girls were eager in writing their scripts and explaining their program at the end of day or beginning of the next session on the main screen. Some children did not want to move on to the next task unless they had completed the current one to their satisfaction, and took extra time and involved in making their program more stable.

Towards the end all children had made a number of projects to show what they had learned through the course. This was a stepping stone for then to continue and make projects based on their curriculum to project their mastery over a concept.

Holiday Scratch Course

~saranya

During the exam holiday we conducted basic scratch course for children. 7th graders are new to STEM land they donot know to make a project in scratch so we combined Isai Ambalam children with Udavi children. Day by day we are able to see changes from children. When we collaburate with other children it was really fun and learn. Some children from 8th grade also joined with us for helping. They helped their buddies and also they showed the task demo with children. From that demo children got an idea to complete their tasks.

Day 1: Ask question

We asked children prepare few question that can related to anything. They did it then we asked children to use funtions from scratch now use spirite and ask questions and also play it with others. 8th grade children showed demo of the task. Every children did well.

 

 

 

 

 

Day2: Shapes to Mandala

We asked children how many shapes do you know draw it by using scratch from that make a mandala and we have given one clue for them that is repeat function for mandala. When they did it they were so happy and theyn shared with other also.

 

 

 

 

 

Day3: Maze Game

We asked children to know how to play maze game.  From this we have given clue for children to make maze game. 8th grade children showed demo of this then many children made different kind of maze games. That was really awesome and everyone were enjoyed a lot. We gave chance to evryone to share their projects.

Day4: Adding life and score to everyone

Maze game they did for play at one time then we asked children to add life and score. We asked children to use data for that the did well and they taught others also.

Day5: Arc function and Write function

These two function is used to reduce our coding part. This will make our work easy.  The task is children should use these function. Children did it and also they made many projects.

We start and end with circle. I noticed that when we collaburate with other children peer learning was happened and we made new relationship with Udavi and Isai Ambalam. I felt this exam holidays helped for others and also we made the holiday meaningful.

Fraction; Proper and Improper

Proper Fraction:

The fraction is always less than 1 whole

e.g.For the fraction (1/6); I have one cake and I want to give it equally to six people, How much will each get?

I.e) The Numerator will always be less than the denominator

link to scratch code: https://scratch.mit.edu/projects/237539463/

This program can be altered to show equivalent fractions as well.

Improper Fractions

The fraction is always greater than 1 whole

I have 11 cake I want to give to 8 people equally, what should I do?

I.e) The Numerator will always be greater than the denominator

link to scratch code: https://scratch.mit.edu/projects/237539515/

This program takes two inputs numerator and denominator and draws that as a fraction.

Fraction with discrete form and scratch program

Fractions:

  1. Grouping
  2. Sharing
  3. Discrete

In grouping method the number of objects are grouped into different containers in equal portions

Example: I have 15 cakes and want to give it to 5 people equally.

In sharing method I know the number of people I want to give I need to find out how many to give to each person.

Example: I have 15 cakes if a person gets 3 cakes, to how many people can I give?

In Discrete method, the user has a specified quantity of chips only.

As seen here, the arrangement of chips are in a 8 cross 5 with a total of 40 chips.

Let us consider 4/5 + 5/8

Then he would flip the appropriate chips like the following:

Here the child sees that there are out of 5 chips in one row four are blue and there are eight rows which sums up to 32. On the other hand there are five blue chips for one row and there are five rows which gives 25 now if we add all the blue we get 57.

link to project: https://scratch.mit.edu/projects/236316674/

 

My first experience with scratch

Saranya

This is an amazing idea .When I heard the word scratch, I did not know what it is? .After that students taught me how to use it? What kind of thing we can learn by using scratch.It is like an Object Oriented Programming.Here we have to give only command like move,turn like this. We have to understand the logic. whatever the command is given by us It will draw accordingly. We can draw different shapes by using scratch.It is increasing my interest level towards mathematics. The below picture shows the circle by using scratch.

This is makes me to understand the logic in easy way.Yesterday evening I saw the two wheeler truck so I would like to draw the truck by using scratch.Then I tried to draw a two wheeler truck.The below picture can shows my interest  towards scratch.

 

Nuclear Fission Reaction with Scratch

The following video demonstrates the nuclear fission reaction that was made during the advanced scratch course offered at STEMLAND. I had partnered up along with a 8th grader from Udavi school to create it.

Learning Algebra With the the help of scratch

After finished Geometry i was switched to Algebra. Mastering algebra is important for moving on to nearly all other types of mathematics in  school. However, even the most basic algebra skills can be tricky for beginners to understand the first time they encounter them. I was in the need to know their prior knowledge in algebra in order to build on that (if that was conceptual) or correct them (if that was misconception). So, I gave some equations to solve, asked some stories (Multiplication & Division) and gave them small puzzles  to understand their understandings in algebra.

Except few, all posses some sort of difficulties. Some of them could not able to interpret the question, some of them having difficulties in calculation part, Some were guessed the answers. From that i inferred they need more explanation to understand the concepts. So, i took them to computer lab to practise algebra using scratch programming. First, i gave an expression of 5x+10 and asked them to draw bar graphs in scratch,                                     where x = 1,2,3,4,…….10(with guidance).

Screenshot from 2015-03-13 08:23:18Screenshot from 2015-03-13 08:23:02

Then, i asked them to find out the value of x in the following equation 5x+10=70.

Screenshot from 2015-03-18 16:27:14 Screenshot from 2015-03-18 16:27:45

<iframe allowtransparency=”true” width=”485″ height=”402″ src=”http://scratch.mit.edu/projects/embed/53042546/?autostart=false”

Link: http://scratch.mit.edu/projects/53046628/

What I was  inferred, they could learn(understand) the things comparatively quicker by programming than doing it manually (as procedural). Hence i decided to add one more concept on that just like fun by asking them to draw multi-stair case like structure by modifying the program   ( underScreenshot from 2015-03-13 12:22:31 guidance).

 

Screenshot from 2015-03-13 12:23:36

<iframe allowtransparency=”true” width=”485″ height=”402″ src=”http://scratch.mit.edu/projects/embed/53046628/?autostart=false”

Link:   http://scratch.mit.edu/projects/53046628/