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This collection of interactive activities offers a range of middle school learning opportunities for which TI-Nspire (in software or handheld forms) is ideally suited. Each makes use of Graphs & Geometry applets which allow students to be active participants in their mathematics learning rather than passive spectators.
Whole Numbers: Parts of a Whole
Rational Numbers: Percentage Explorer
Integers: Integer Builder
Rational Numbers: Number Line
Rational Numbers: Fraction Explorers
Concrete Algebra: Pattern Builders
Concrete Algebra: Expression Builders
Concrete Algebra: Equation Builder
Geometry: Isometric Grid and 3D shapes
Geometry: Exploring Quadrilaterals
Statistics: Stem and Leaf Plots
Activity 1: Whole Number: Parts of a Whole
By Steve Arnold and Marc Adam
This activity involves students in modeling practical situations using the Part-Whole-Part model provided, and identifying the type of operation required. It can be used to lead into building algebraic expressions if desired.
Activity 1 TNS fileTop of Page
Activity 2: Rational Numbers: Percentage Explorer
Build percentage problems using the slider and connect the proportion of the model with the percentage and decimal forms.
Activity 2 TNS fileTop of Page
Activity 3: Integers: Integer Builder
Drag positive and negative unit squares onto the stage and build integer additions.
Activity 3 TNS fileTop of Page
Activity 4: Rational Numbers: Number Line
Drag a point along the number line and compare the mixed numeral, improper fraction, decimal and percentage forms.
Activity 4 TNS fileTop of Page
Activity 5: Rational Numbers: Fraction Explorers
This collection of six documents, based largely on work done by Oystein Nordvik from Norway, takes students from different forms of rational numbers and reducing fractions through all fours operations using dynamic visual approaches. Quiz programs offer consolidation, making this a fairly complete treatment of fractions.
Activity 6: Concrete Algebra: Pattern Builders
Steve Thornton and Steve Arnold
In this series of activities, students are presented with the same pattern of matchsticks built in different ways - and each has a different algebraic form. A graduated help facility is offered, allowing students to choose the level of help they need to answer the questions about each pattern, and to build these using algebraic form and table of values.
Activity 6 TNS files Pattern_Builders 1-4Top of Page
Activity 7: Concrete Algebra: Expression Builders
In these two documents, students use algebra tiles to build algebraic expressions. They can change the value of x and build multiple representations, dynamically building concrete, algebraic and graphical forms.
Activity 7 TNS files ExpressionBuilder 1 and 2Top of Page
Activity 8: Concrete Algebra: Equation Builder
Using algebra tiles, students build equations and then establish the equality of both sides by dragging the "x-ball" to set the two sides of the scale to be equal. They can then solve the equation, by dragging the same shapes on and off the two sides.
Activity 8 TNS fileTop of Page
Activity 9: Algebra Sentences
An algebraic word sentence, such as "3 more than n", is generated within the spreadsheet, and students must enter the simplified form (myans := "3 + n"). Type "check()" to check their answer: the student scores a point for each correct answer - the teacher scores for each wrong answer.
Activity 9 TNS fileTop of Page
Activity 10: Geometry: Isometric Grid and 3D shapes
Using isometric grids, students build 3D shapes from different views, and build front, side and top views from given 3D shapes.
Activity 10 TNS files Isometrics 1 - 3Top of Page
Activity 11: Geometry: Exploring Quadrilaterals
Drag the verices of a quadrilateral and build the different types; focus on the properties of these different figures, and finally put it all together to identify different quadrilaterals from their properties.
Activity 11 TNS fileTop of Page
Activity 12: Geometry: TNS-LOGO
Explore geometry using this version of the classic LOGO Turtle Graphics language.
Activity 12 TNS fileTop of Page
Activity 13: Calculus 6: Statistics: Stem and Leaf Plots
Students can create stem and leaf plots using either a program [stemandleaf(list)], which generates them in list form (shown here) or using a function [stemandleafplot(list)] which generates a matrix. The program can be used only in the Calculator; the function can be used anywhere.
Activity 13 Student TNS fileTop of Page
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