Eleventh graders learn how computers represent everything — text, numbers, images — as bits: binary 0s and 1s, grouped into bytes, mapped to characters by codes like ASCII, and written compactly in hexadecimal. They match the terms, then encode a short message themselves.
Students will be able to…
How does a computer store text, numbers, and images using only 0s and 1s?
Project this and match each term to its meaning — tap the term, then tap the meaning.
Tap any phase to open the teacher moves and student actions.
How can a computer store a letter using only 0s and 1s?
Students learn.
Students practice.
Students apply.
Students close.
Aligned to the CSTA K-12 Computer Science Standards and the ISTE Standards for Students.
Translate between bit representations of data.
Evaluate how data is stored and represented.
Explain abstraction in data representation.
Represent data in various ways.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students encode their initials in ASCII, binary, and hex. A printable encoding worksheet is in the CS library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.