Search the California Content Standards

Standard:
Decompose the steps needed to solve a problem into a sequence of instructions.

Descriptive Statement:
Decomposition is the act of breaking down tasks into simpler tasks. For example, students could break down the steps needed to make a peanut butter and jelly sandwich, to brush their teeth, to draw a shape, to move a character across the screen, or to solve a level of a coding app. In a visual programming environment, students could break down the steps needed to draw a shape. (CA CCSS for Mathematics K.G.5, 1.G.1, 2.G.1) Alternatively, students could decompose the planning of a birthday party into tasks such as: 1) Decide when and where it should be, 2) List friends and family to invite, 3) Send the invitations, 4) Bake a cake, 5) Decorate, etc.

Standard:
Compare how people lived and worked before and after the adoption of new computing technologies.

Descriptive Statement:
Computing technologies have changed the way people live and work. Students describe the positive and negative impacts of these changes. For example, as a class, students could create a timeline that includes advancements in computing technologies. Each student could then choose an advancement from the timeline and make a graphic organizer noting how people's lives were different before and after its introduction into society. Student responses could include: In the past, if students wanted to read about a topic, they needed access to a library to find a book about it. Today, students can view and read information on the Internet about a topic or they can download e-books about it directly to a device. Such information may be available in more than one language and could be read to a student, allowing for great accessibility. (HSS.K.6.3) Alternatively, students could retell or dramatize stories, myths, and fairy tales from two distinct time periods before and after a particular computing technology had been introduced. For example, the setting of one story could take place before smartphones had been invented, while a second setting could take place with smartphones in use by characters in the story. Students could note the positive and negative aspects of smartphones on the daily lives of the characters in the story. (VAPA Theatre Arts K.3.1, K.3.2, 1.2.2, 2.3.2) (CA CCSS for ELA/Literacy RL.K.2, RL.K.9, RL.1., RL.1.9, RL.2.2, RL.2.9)

Standard:
Create programs that use variables to store and modify data.

Descriptive Statement:
Variables are used to store and modify data. Students use variables in programs they create. At this level, students may need guidance in identifying when to create variables (i.e., performing the abstraction). For example, students could create a game to represent predators and prey in an ecosystem. They could declare a "score" variable, assign it to 0 at the start of the game, and add 1 (increment) the score each time the predator captures its prey. They could also declare a second "numberOfLives" variable, assign it to 3 at the start of the game, and subtract 1 (decrement) each time a prey is captured. They could program the game to end when "numberOfLives" equals 0. (CA NGSS: 5-LS2-1) (CA CCSS for Mathematics 5.OA.3) Alternatively, when students create programs to draw regular polygons, they could use variables to store the line size, line color, and/or side length. Students can extend learning by creatively combining a variety of polygons to create digital artwork, comparing and contrasting this to another work of art made by the use of different art tools and media, such as watercolor or tempera paints. (CA CCSS for Mathematics 3.G.1) (VAPA Visual Arts 3.1.4)

Standard:
Decompose problems into smaller, manageable tasks which may themselves be decomposed.

Descriptive Statement:
Decomposition is the act of breaking down tasks into simpler tasks. This manages complexity in the problem solving and program development process. For example, students could create an animation to represent a story they have written. Students write a story and then break it down into different scenes. For each scene, they would select a background, place characters, and program actions in that scene. (CA CCSS for ELA/Literacy W.3.3, W.4.3, W.5.3) Alternatively, students could create a program to allow classmates to present data collected in an experiment. For example, if students collected rain gauge data once per week for 3 months, students could break down the program tasks: 1) ask the user to input 12 weeks' worth of data, 2) process the data (e.g., add the first four entries to calculate the rain amount for month 1, convert to metric system measurements), and 3) direct the creation or resizing of objects (e.g., one rectangular chart bar for each month) to represent the total number of rainfall for that month. (CA NGSS: 3-ETS-1-2) (CA CCSS for Mathematics 3.MD.2)

Standard:
Create programs by incorporating smaller portions of existing programs, to develop something new or add more advanced features.

Descriptive Statement:
Programs can be broken down into smaller parts, which can be incorporated into new or existing programs. Students incorporate predefined functions into their original designs. At this level, students do not need to understand all of the underlying implementation details of the abstractions that they use. For example, students could use code from a ping pong animation to make a ball bounce in a new basketball game. They could also incorporate code from a single-player basketball game to create a two-player game with slightly different rules. Alternatively, students could remix an animated story and add their own conclusion and/or additional dialogue. (CA CCSS for ELA/Literacy W.3.3.B, W.3.3.D, W.4.3.B, W.4.3.E, W.5.3.B, W.5.3.E) Additionally, when creating a game that occurs on the moon or planets, students could incorporate and modify code that simulates gravity on Earth. They could modify the strength of the gravitational force based on the mass of the planet or moon. (CA NGSS: 5-PS2-1)

Standard:
Discuss computing technologies that have changed the world, and express how those technologies influence, and are influenced by, cultural practices.

Descriptive Statement:
New computing technologies are created and existing technologies are modified for many reasons, including to increase their benefits, decrease their risks, and meet societal needs. Students, with guidance from their teacher, discuss topics that relate to the history of computing technologies and changes in the world due to these technologies. Topics could be based on current news content, such as robotics, wireless Internet, mobile computing devices, GPS systems, wearable computing, and how social media has influenced social and political changes. For example, students could conduct research in computing technologies that impact daily life such as self-driving cars. They engage in a collaborative discussion describing impacts of these advancements (e.g., self-driving cars could reduce crashes and decrease traffic, but there is a cost barrier to purchasing them). (CA CCSS for ELA/Literacy W.3.7, W.4.7, W.5.7, SL.3.1, SL.4.1, SL.5.1) Alternatively, students could discuss how technological advancements affected the entertainment industry and then compare and contrast the impacts on audiences. For instance, people with access to high-speed Internet may be able to choose to utilize streaming media (which may cost less than traditional media options), but those in rural areas may not have the same access and be able to reap those benefits. (VAPA Theatre Arts 4.3.2, 4.4.2)

Standard:
Create clearly named variables that store data, and perform operations on their contents.

Descriptive Statement:
A variable is a container for data, and the name used for accessing the variable is called the identifier. Students declare, initialize, and update variables for storing different types of program data (e.g., text, integers) using names and naming conventions (e.g. camel case) that clearly convey the purpose of the variable, facilitate debugging, and improve readability. For example, students could program a quiz game with a score variable (e.g. quizScore) that is initially set to zero and increases by increments of one each time the user answers a quiz question correctly and decreases by increments of one each time a user answers a quiz question incorrectly, resulting in a score that is either a positive or negative integer. (CA CCSS for Mathematics 6.NS.5) Alternatively, students could write a program that prompts the user for their name, stores the user's response in a variable (e.g. userName), and uses this variable to greet the user by name.

Standard:
Decompose problems and subproblems into parts to facilitate the design, implementation, and review of programs.

Descriptive Statement:
Decomposition facilitates program development by allowing students to focus on one piece at a time (e.g., getting input from the user, processing the data, and displaying the result to the user). Decomposition also enables different students to work on different parts at the same time. Students break down (decompose) problems into subproblems, which can be further broken down to smaller parts. Students could create an arcade game, with a title screen, a game screen, and a win/lose screen with an option to play the game again. To do this, students need to identify subproblems that accompany each screen (e.g., selecting an avatar goes in the title screen, events for controlling character action and scoring goes in the game screen, and displaying final and high score and asking whether to play again goes in the win/lose screen). Alternatively, students could decompose the problem of calculating and displaying class grades. Subproblems might include: accept input for students grades on various assignments, check for invalid grade entries, calculate per assignment averages, calculate per student averages, and display histograms of student scores for each assignment. (CA CCSS for Mathematics 6.RP.3c, 6.SP.4, 6.SP.5)

Standard:
Decompose problems into smaller subproblems through systematic analysis, using constructs such as procedures, modules, and/or classes.

Descriptive Statement:
Decomposition enables solutions to complex problems to be designed and implemented as more manageable subproblems. Students decompose a given problem into subproblems that can be solved using existing functionalities, or new functionalities that they design and implement. For example, students could design a program for supporting soccer coaches in analyzing their teams' statistics. They decompose the problem in terms of managing input, analysis, and output. They decompose the data organization by designing what data will be stored per player, per game, and per team. Team players may be stored as a collection. Data per team player may include: number of shots, misses, saves, assists, penalty kicks, blocks, and corner kicks. Students design methods for supporting various statistical analyses and display options. Students design output formats for individual players or coaches.

Standard:
Create computational artifacts using modular design.

Descriptive Statement:
Computational artifacts are created by combining and modifying existing computational artifacts and/or by developing new artifacts. To reduce complexity, large programs can be designed as systems of interacting modules, each with a specific role, coordinating for a common overall purpose. Students should create computational artifacts with interacting procedures, modules, and/or libraries. For example, students could incorporate a physics library into an animation of bouncing balls. Alternatively, students could integrate open-source JavaScript libraries to expand the functionality of a web application. Additionally, students could create their own game to teach Spanish vocabulary words using their own modular design (e.g., including methods to: control scoring, manage wordlists, manage access to different game levels, take input from the user, etc.).