Lesson+Plan+using+TI-Nspire+by+Karen+Casselman

Karen Casselman Lesson Plan 5 – TI-Nspire INTC 5320 March 2, 2010

variable expressions. Students will be able to use substitution to evaluate an algebraic expression. Students will be able to determine the role of the coefficient and the constant term in an expression. Students will be able to identify patterns and make generalizations based on observations when values are substituted into an expression. Students will be able to use the “Action/Consequence” abilities of the TI-Nspire system to observe how the values of an expression change as different values are substituted.
 * OBJECTIVE: **7-6.2 Evaluate Expressions. Students will be able to evaluate expressions and

a number line (either horizontal or vertical). Students will understand that the magnitude of numbers affects the outcome of operations on them. Students will understand that the symbolic language of algebra is used to communicate and generalize the patterns in mathematics. Students will understand that patterns and relationships can be represented graphically, numerically, symbolically, or verbally.
 * ENDURING UNDERSTANDINGS: ** Students will understand that integers can be labeled on


 * DO NOW: ** Selected Questions taken from Spiral Review, Open Ended Test Prep and Logical Thinking.

substituting values for variables, and evaluating expressions. The emphasis is on helping students understand that an expression and an equation are two distinctly different mathematical objects. Students will slide a point attached to an arrow along a number line in the TI-Nspire system and be asked to observe the changes that take place in the expression as the value of the variable changes. As a result students will make conjectures about the connection between the values being substituted in the expression and the outcomes. The lesson could lead to solving a linear equation in one variable or be extended to generating a table of solutions for a linear equation in two variables.
 * ACTIVITIES: **Do Now, Review Homework, Notes and Examples. This lesson involves

//Vocabulary: // Coefficient, Constant term, Linear equation //Materials needed: // SMART Board, TI-Nspire calculators and software

the TI-Nsprire software and then the students will slide the tool and make observations regarding the outcomes. Teacher will facilitate and guide this discussion.
 * GUIDED PRACTICE: ** Teacher will first demonstrate use of the Action/Consequence slide in

STANDARDS: ** Technology: 8.1 A-F, 8.2 A-G Mathematics: 4.1 Numbers and Numerical Operations 4.3 Patterns and Algebra 4.5 Mathematical Processes
 * <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">INDEPENDENT PRACTICE: **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> SEARCH Lesson 7-6.2 pages 272 and 273.
 * <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">