Variables, if statements, and loops
See how programs remember values, make decisions, repeat useful work, and stop at the intended time.
High school foundationOpen lesson
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11 matches for “how do loops and if statements work”
if Statements
AP Computer Science A · Unit 2: Selection and Iteration.
AP / advanced high schoolOpen AP topicNested if Statements
AP Computer Science A · Unit 2: Selection and Iteration.
AP / advanced high schoolOpen AP topicSystems, Coding, and Engineering
Learn how code gives instructions, how systems transform inputs, and how engineers test designs.
High school foundationOpen courseCustomers, value, and markets
Move from a broad business idea to a clear customer, useful benefit, and evidence you could gather before making a larger commitment.
High school foundationOpen lessonHomeostasis and negative feedback
See homeostasis as active adjustment: a system detects change and responds to keep a condition within a workable range.
High school foundationOpen lessonHow energy moves through ecosystems
Read food-web arrows as energy pathways and explain why less usable energy reaches higher trophic levels, or feeding levels.
High school foundationOpen lessonHow systems work together
Follow what moves between connected parts, see how one part’s output can become another part’s input, and use feedback to explain how a system adjusts.
High school foundationOpen lessonRevenue, costs, profit, and cash flow
Separate what a business earns, when cash moves, and how much cash is available so similar-looking numbers do not get confused.
High school foundationOpen lessonVariables on both sides
Move variable terms to one side, move constants to the other, and check whether the result is one solution, no solution, or every value.
Algebra IOpen lessonWater and carbon cycles
Track where water and carbon can be stored, what moves them, and how one change can affect several connected parts of an ecosystem.
High school foundationOpen lesson
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