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Classroom Activities	Author	Level	Technology
Golden Rectangles Students measure rectangles and calculate ratio between the sides. They compare the ratio to the Golden Ratio (1.618). Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	976	2
Patterns, Functions, and Algebraic Reasoning Students learn to use the calculator to generate recursive patterns. They explore the connection from patterns to functions and algebraic reasoning. Students examine the idea of a variable for an unknown quantity and express mathematical relationships using equations. Alignment : Standards Textbook	Texas Instruments	K-5	TI-10 TI-15 Explorer™ TI-73 Explorer™	4968	6
Number and Operation Sense: Rational Numbers Students learn to use the calculator to collect a set of data in order to identify patterns that illustrate important rational number concepts: the relationship between rational numbers and division, and equivalent fraction and decimal forms for rational numbers. Alignment : Standards Textbook	Texas Instruments	K-5	TI-10 TI-15 Explorer™	1330	1
Pizza Extravaganza Students will conduct a survey of the class to determine favorite pizza toppings. They use this sample information to predict the preferred toppings for the school and use the TI-15 to help them with the calculations to plan a school-wide pizza party. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	1054	1
Making Cookies Students will reduce a cafeteria recipe to suit a household recipe. They use compatible numbers to choose smaller measurements while retaining the original proportions. Alignment : Standards Textbook	Texas Instruments	K-5	TI-15 Explorer™	1103	1
Meal Manager Students will use percentages and proportional reasoning skills to solve problems. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	1019	2
Thrift Store Markdowns Students will calculate a series of discounts using increasing unit fractions. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	1004	1
What's Up? Concepts and skills covered in this activity include writing keystroke sequences for formulas and converting between temperature scales. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™ TI-30X IIB TI-30X IIS TI-30Xa TI-34 II Explorer Plus™	1189	5
Roots Concepts and skills covered in this activity include roots, powers of 10, and problem solving. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™ TI-30X IIB TI-30X IIS TI-30Xa TI-34 II Explorer Plus™	1283	3
Set Design Students will use similarity concepts, and the dimensions of the carvings on Mt. Rushmore to create a proportional representation of the carvings for a stage backdrop. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	970	1
Stepping Stones Students use volume formulas and proportional reasoning to calculate the amount of concrete needed to make stepping stones of a specific size. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	983	2
Creating Word Problems Students write word problems based on the whole numbers generated by the calculator. They decide on an operation to solve the problems. Finally, they analyze the problems to determine the problem characteristics when using operations on whole numbers. Alignment : Standards Textbook	Texas Instruments	K-5	TI-15 Explorer™	1175	3
Divisibility Rules Using Scientific Calculators Concepts and skills covered in this activity include number theory, divisibility rules, multiples, factors, and problem-solving skills. Alignment : Standards Textbook	Texas Instruments	6-8	TI-10 TI-15 Explorer™ TI-30X IIB TI-30X IIS TI-30Xa TI-34 II Explorer Plus™	1088	11
Banquet Meal Students use proportional reasoning skills to increase a family-size recipe to a banquet-size recipe. Alignment : Standards Textbook	Texas Instruments	6-8	TI-15 Explorer™	1128	3

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