Karen North Period 1A, 2A, 4A CSI Lesson 8 / Chapter 2 VARIABLE DEFINITIONS

 LEARNER OBJECTIVES: TEKS / Texas Essential Knowledge and Skills: (1) FOUNDATIONS- use of hardware and software 1/(E) differentiate programming languages 1/(G> demonstrate coding proficiency in a contemporary programming language 5/(C) design and document sequential search algorithms 6/(A) evaluate design and functionality of using effective coding, design, and test data (7) SOLVING PROBLEMS - use computer-based tools to create and modify solutions to problems. 7/(A) apply problem-solving strategies. 7/(B) use visual organizers. 7/(C) develop sequential and iterative algorithms and code programs in computer language. 7/(D) code using various data types. 7/(E) demonstrate effective use of predefined I/O procedures. 7/(F) develop coding with expressions, functions, and data structures. 7/(G) create and use libraries of generic modular code for efficient programming. 7/(H) identify parameters. 7/(I) use control structures. 7/(K) use structured data types. 9/(C) seek and respond to advice from peers and professionals in delineating technological tasks. (12) COMMUNICATION - uses technology applications to facilitate evaluation of process and product. 12/(A) write technology specifications for planning/evaluation rubrics documenting code. 12/(B) seek and respond to advice from peers and professionals in evaluating the product. 12/(C) debug and solve problems using reference materials and effective strategies. Math TAAS: None today 1.1 Use scientific notation 1.2 Compare and order real numbers 1.3 Round whole numbers and decimals 1.4 Determine relationships among and between fractions, decimals, and percents 1.5 Find squares and square roots 11.2 Determine methods for finding or find percent and percentage 2.1 Use real number properties and inverse operations 2.2 Determine missing elements in patterns 2.3 Identify ordered pairs and solution sets in one and two dimensions 2.4 Apply ratio and proportion 11.1 Identify strategies for solving or solve proportion problems PROCEDURES/ACTIVITIES: TAAS Activity: Write a program using ratio and proportion. Explain Term/Concepts: Variable definition Constant rule Mnemonic variable name Givens vs. dependencies Write a letter to parents in Word explaining all concepts mastered currently in program design. Create an Excel spreadsheet with grades and determine 3-week average. Create an Excel spreadsheet for the lemonade stand example. Write a program using constants similar to the lemonade stand program. ASSESSMENT: Printed spreadsheet with 3 week average and letter to parent. Softcopy check of program using variable definitions. MATERIALS: 1. Software: DrScheme Programming Environment 2. Hardware: Compaq 486 or Dell 586, 75 MHz computer 3. Reading from How to Design Programs: C2.6 Variable Definitions