How do computers store and manipulate information? In this lesson, students learn how computers abstract complicated information into manageable chunks that they can then store and manipulate.
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In this lesson, students will learn what a number system is, the difference between the decimal number system and the binary number system, and how to convert between decimal and binary.
Students will be able to:
In this lesson, students will learn what a number system is, the difference between the decimal number system and the binary number system, and how to convert between decimal and binary.
Students will be able to :
In this lesson, students will learn how computers break down images into concrete values that can be stored. Students will learn how images are represented digitally using pixels.
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In this lesson, students will learn about the hexadecimal number system, and how it is useful in storing digital information. They will also learn how to convert numbers from the hexadecimal system to binary and vice versa.
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In this lesson, students will learn how the RGB encoding scheme allows us to encode colors as numeric data. It defines the amount of red, green and blue light in a pixel.
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In this lesson, students will learn how to include images in their programs and manipulate their pixels using WebImage. Students will learn how image filters manipulate stored pixel data.
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In this lesson, students will learn how computers shrink digital information, to make storage of pictures, videos, and text more efficient.
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In this lesson, students will what lossy compression is, the benefits and disadvantages of using this kind of compression, and where using lossy compression is appropriate.
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In this lesson, students learn how computers encrypt and decrypt information. Students learn the difference between asymmetric and symmetric encryption.
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This lesson is a summative assessment of the unit’s learning objectives.
Assess student achievement of the learning goals of the unit
