Computer Science Worksheets

Learning Objectives

• Define a variable as stored data that can change while a program runs
• Identify the difference between a variable and its value in a programming scenario
• Explain how stored data helps a program track information like scores and names+ Show more

Learning Objectives

• Explain how classes define attributes and behaviors, and how objects are created from those blueprints.
• Identify the roles of constructors, methods, and encapsulation in managing program state.
• Apply class and object concepts to model a real-world system in code.

Learning Objectives

• Explain how decomposition breaks a complex problem into smaller subproblems with clear goals.
• Identify strategies for planning, organizing, and troubleshooting using decomposition.
• Use key vocabulary (decomposition, subproblem, strategy, solution) accurately in context.

Learning Objectives

• Explain how machine learning systems use training data to learn patterns
• Describe how the quality and variety of training data affect a model’s results
• Identify vocabulary terms: machine learning, training data, model, and pattern+ Show more

Learning Objectives

• Explain how variables, events, and logic interact in programs
• Identify how user interfaces support application functionality
• Predict program outcomes using conditionals and loops

Learning Objectives

• Explain how privacy, consent, and data security connect to responsible data practices.
• Identify ethical and unethical uses of personal data in real-world scenarios.
• Describe how anonymization and access controls can reduce harm from data misuse.

Learning Objectives

• Identify the parts of a decision tree: conditions, branches, and outcomes
• Follow a decision tree to predict an outcome from given conditions
• Construct simple decision pathways by choosing branches based on conditions+ Show more

Learning Objectives

• Compare two algorithms by describing how many steps they use and how they affect time or effort.
• Define and use efficient, compare, and optimize to explain why one strategy works better than another.
• Use criteria to choose the most efficient strategy for a given problem.

Learning Objectives

• Identify rows, columns, headings, and data in simple tables.
• Explain how tables organize information for easier comparison.
• Locate specific information by reading rows and columns.+ Show more

Learning Objectives

• Explain how instruction order can affect a procedure's outcome
• Identify accurate and inaccurate sequences of simple instructions
• Organize clear steps to describe a simple procedure+ Show more

Learning Objectives

• Identify common inputs in simple interactive computer programs
• Identify outputs produced in response to user actions
• Explain how a program responds to a user's input+ Show more

Learning Objectives

• Identify common parts of flowcharts and simple diagrams
• Explain how shapes and arrows show process order
• Interpret decisions and repeated actions in visual algorithms+ Show more

Learning Objectives

• Identify safe routines for using shared classroom devices
• Explain why logging out protects private information
• Recognize information that should remain private+ Show more

Learning Objectives

• Define sequence, step, order, and process using examples
• Arrange actions in a sensible order to complete tasks
• Identify what happens first, next, then, and last+ Show more

Learning Objectives

• Identify loops as instructions that repeat actions in programs
• Explain how repeat counts control the number of repetitions
• Recognize loops used to create patterns and animations+ Show more

Learning Objectives

• Define a digital footprint and identify online traces
• Identify online activities that can leave digital traces
• Distinguish responsible from careless online choices+ Show more

Learning Objectives

• Identify respectful and disrespectful choices in online communication
• Explain how word choice affects how an online message is received
• Describe how tone can be difficult to recognize in text messages+ Show more

Learning Objectives

• Identify safe and unsafe choices when using search engines
• Evaluate search results before opening websites or links
• Recognize trustworthy and teacher-approved websites+ Show more

Learning Objectives

• Identify features that make a password difficult to guess
• Explain how strong passwords help protect accounts and devices
• Recognize safe habits for keeping passwords private+ Show more

Learning Objectives

• Identify rules in numeric, visual, and action patterns
• Predict the next part of a pattern using its rule
• Recognize repeating parts in simple patterns and program steps+ Show more

Learning Objectives

• Identify personal information that should be protected online
• Distinguish private information from information generally safe to share
• Explain how passwords help protect online accounts+ Show more

Learning Objectives

• Identify information in tables and graphs that supports an answer
• Interpret simple data displays by comparing values and patterns
• Identify evidence that supports a data-based conclusion+ Show more

Learning Objectives

• Define a variable and identify its stored value
• Identify information that can be stored in variables
• Explain how stored values change while programs run+ Show more

Learning Objectives

• Identify trends by comparing values in tables and graphs
• Describe increases and decreases using accurate data vocabulary
• Recognize patterns across values and categories+ Show more

Learning Objectives

• Identify similarities and differences between two sets of data
• Compare amounts using greater, less, and same
• Read simple tables and classroom survey results+ Show more

Learning Objectives

• Define bug, error, debug, and fix in simple programming
• Identify missing commands in simple code sequences
• Recognize repeated and incorrectly ordered commands+ Show more

Learning Objectives

• Identify habits that support balanced technology use.
• Explain why breaks support healthy screen-time routines.
• Distinguish healthy and unhealthy technology choices.+ Show more

Learning Objectives

• Identify programs, instructions, commands, input, and output
• Distinguish user input from computer output
• Explain how instruction sequences guide computer actions+ Show more

Learning Objectives

• Explain how decomposition makes large tasks easier to solve.
• Identify subproblems within familiar projects and everyday routines.
• Organize smaller steps into a logical sequence.+ Show more

Learning Objectives

• Identify strategies for solving simple classroom problems
• Compare strategies using clarity, efficiency, and accuracy
• Explain why a strategy fits a specific problem+ Show more

Learning Objectives

• Explain why code steps need a logical sequence
• Identify clear and precise commands in simple programs
• Arrange code steps in an order a computer follows+ Show more

Learning Objectives

• Explain how an algorithm becomes a sequence of code instructions
• Arrange code instructions in a logical sequence
• Identify when repetition can shorten repeated code instructions+ Show more

Learning Objectives

• Identify missing steps in an incomplete sequence
• Recognize steps placed in the wrong order
• Explain how debugging helps find and fix sequence errors+ Show more

Learning Objectives

• Identify repeated actions and predictable patterns in simple programs
• Arrange code instructions in a logical sequence
• Explain how repeat instructions make code shorter and clearer+ Show more

Learning Objectives

• Identify conditions, choices, branches, and paths in decision trees
• Explain how yes-or-no answers guide different computer results
• Follow simple decision-tree paths to determine outcomes+ Show more

Learning Objectives

• Define the terms variable and value and explain how they relate to stored information.
• Identify how a program can change values in variables while it runs.
• Use variables to describe information such as names, numbers, and scores in a simple scenario.

Learning Objectives

• Explain how communication protocols provide rules for devices to exchange information reliably.
• Describe how HTTP requests and responses work when using web services.
• Use key vocabulary words—protocol, communication, HTTP, and transmission—in context.

Learning Objectives

• Explain how loops help repeat instructions automatically.
• Use loop-related vocabulary such as loop, repeat, iteration, and efficiency.
• Identify what changes and what stays the same when a loop runs multiple times.+ Show more

Learning Objectives

• Explain how strong passwords help protect an account from unauthorized access.
• Describe why passwords should not be shared or reused across accounts.
• Identify characteristics of a secure password compared with a weak password.

Learning Objectives

• Explain how JavaScript interacts with the DOM to update web page content and respond to events.
• Identify key DOM concepts such as elements, properties, and methods used to modify the page.
• Apply event-driven thinking to connect user actions (like button clicks) to JavaScript behavior.

Learning Objectives

• Explain how testing helps evaluate whether an algorithm works correctly.
• Identify weak points in an algorithm based on test results.
• Revise an algorithm so its steps are clearer and more accurate.+ Show more

Learning Objectives

• Define and use the terms compare, data set, difference, and relationship when working with numbers.
• Compare two data sets by describing similarities and differences in amounts, categories, and patterns.
• Identify simple relationships between two lists of information using evidence from the data.+ Show more

Learning Objectives

• Define key user interface vocabulary: user interface, menu, button, and layout.
• Identify features of an interface that make it easy or difficult to use.
• Use interface terms to describe how a user interacts with a digital design.

Learning Objectives

• Define evidence, analysis, conclusion, and decision in the context of using data.
• Identify which data supports a conclusion and explain why it does.
• Use logical reasoning to choose the best recommendation based on given data.+ Show more

Learning Objectives

• Explain how recommendation systems use data patterns to suggest content and products.
• Use key vocabulary (recommendation, preference, suggestion, algorithm) accurately in context.
• Evaluate whether a statement about recommendation systems is true or false.+ Show more

Learning Objectives

• Explain how if, else, and nested if statements select different actions based on conditions.
• Use comparison operators (>, <, ==, !=) to form correct logical tests.
• Trace and predict program behavior for branching logic.

Learning Objectives

• Explain how conditional logic lets an algorithm choose different paths based on a condition.
• Identify outcomes of decision structures using if/else reasoning.
• Use key vocabulary (condition, branch, logic, outcome) to describe rule-based decisions.

Learning Objectives

• Explain how machine learning uses training data to learn patterns for a model.
• Describe how the quality and variety of training data affect model results.
• Use key vocabulary such as machine learning, training data, model, and pattern in accurate statements.