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- 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
Biology is a branch of Natural science which deals/About living Organism.
evolutionary history and relationship of an organism or group of organisms
AI-Robot
cell is the smallest unit of the humanity biologically
Abraham
HOW CAN MAN ORGAN FUNCTION
the diagram of the digestive system
allimentary cannel
Ogenrwot
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
Genetics is the study of heredity
Misack
how does twins formed?
Misack
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
is organisms that are similar into groups called tara
Yamosa
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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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