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Home
- Teaching beginners to code
- Scratch v1.4
- Scr0120: memory, variables, and
The purpose of this module is to teach you about memory, variables, literals, and algorithms. You will also learn how to write a Scratch program that illustrates the creation and use of variables, case sensitivity, and the ability to detect and respond to mouse and keyboard events.
Table of contents
Preface
This module is one in a collection of modules designed to help beginners
of all ages
(8 and up) learn how to create the code for computer
programs. Information is provided not only for the beginners themselves butalso for their parents and teachers where appropriate.
The purpose of this module is to teach you about memory, variables, literals, and algorithms.
You will also learn how to write a
Scratch program that illustrates the creation and use of variables, case sensitivity, and the ability to detect and respond to mouse and keyboard events.
Student programming projects
In addition to presenting and explaining a Scratch programming project, I will present two student programming projects that are designed to:
- Help the student retain the knowledge gained by studying the module.
- Require the student to think beyond the material presented in the module
by requiring the student to answer the question "How do I ...?"
Viewing tip
I recommend that you open another copy of this module in a separate
browser window and use the following links to easily find and view the imageswhile you are reading about them.
Images
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Image 1 . A reduced image of the Scratch user interface for the program named Variable01.
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Image 2 . A view of the Variables area of the Scratch user interface.
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Image 3 . Dialog for entering a variable name.
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Image 4 . Programming blocks in the Control category.
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Image 5 . The finished program.
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Image 6 . Example blocks with pointed ends.
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Image 7 . Output from Project 1.
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Image 8 . Output from Project 1.
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Image 9 . Output from Project 2.
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Image 10 . Output from Project 2.
Questions & Answers
it is the relatively stable flow of income
what is circular flow of income
branches of macroeconomics
what is Flexible exchang rate?
is gdp a reliable measurement of wealth
introduction to econometrics
Why is unemployment rate never zero at full employment?
bcoz of existence of frictional unemployment in our economy.
Umashankar
what is flexible exchang rate?
poudel
due to existence of the pple with disabilities
Abdulraufu
the demand of a good rises, causing the demand for another good to fall
is it possible to leave every good at the same level
Joseph
I don't think so. because check it, if the demand for chicken increases, people will no longer consume fish like they used to causing a fall in the demand for fish
Anuolu
is not really possible to let the value of a goods to be same at the same time.....
Salome
Suppose the inflation rate is 6%, does it mean that all the goods you purchase will cost
6% more than previous year? Provide with reasoning.
Not necessarily. To measure the inflation rate economists normally use an averaged price index of a basket of certain goods. So if you purchase goods included in the basket, you will notice that you pay 6% more, otherwise not necessarily.
Waeth
discus major problems of macroeconomics
what is the problem of macroeconomics
Yoal
Economic growth
Stable prices
and low unemployment
Ephraim
explain inflationcause and itis degre
increase in general price levels
WEETO
Good day
How do I calculate this question: C= 100+5yd G= 2000 T= 2000 I(planned)=200.
Suppose the actual output is 3000. What is the level of planned expenditures at this level of output?
how to calculate actual output?
Chisomo
how to calculate the equilibrium income
Beshir
Criteria for determining money supply
who we can define macroeconomics in one line
Muhammad
Aggregate demand
Mohammed
C=k100 +9y and i=k50.calculate the equilibrium level of output
nawalparasi district
from belatari
Amisha
I am Camara from Guinea west Africa... happy to meet you guys here
Sekou
ahile becheclor ho
Amisha
hjr ktm bta ho
ani k kaam grnu hunxa tw
Amisha
money as unit of account means what?
Kalombe
A unit of account is something that can be used to value goods and services and make calculations
Jim
all of you please speak in English I can't understand you're language
Muhammad
I want to know how can we define macroeconomics in one line
Muhammad
it must be .9 or 0.9
no Mpc is greater than 1
Y=100+.9Y+50
Y-.9Y=150
0.1Y/0.1=150/0.1
Y=1500
Kalombe
Mercy is it clear?😋
Kalombe
hi can someone help me on this question
If a negative shocks shifts the IS curve to the left, what type of policy do you suggest so as to stabilize the level of output?
discuss your answer using appropriate graph.
if interest rate is increased this will will reduce the level of income shifting the curve to the left ◀️
Kalombe
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Source:
OpenStax, Teaching beginners to code. OpenStax CNX. May 27, 2013 Download for free at http://cnx.org/content/col11498/1.20
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