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# Determinants of 2x2 Matrices and Cramer's Rule for SMART Notebook

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Included in this zip folder are 7 SMART Notebook files. 2 are introductions to these concepts, 1 is a student printable and 4 are assignments. Below is a brief description of each file.

All 4 assignments can be used at socrative.com and the socrative share numbers are included in the files. The assignments can just be printed and done on paper, though.

Introduction #1 is a 38 slide file. The system of equations ax+by=c and dx+ey=f is solved for y. The student should see why the formula for the determinant was developed based on this outcome. There are 7 formative assessment questions in this file.

Introduction #2 is a 15 slide file. The emphasis is using Cramer's Rule to quickly determine if a system has 1 solution, no solution or infinitely many solutions.

The student 1 page printable is information based on Introduction #2.

Assignment #1 is a 15 question multiple choice assignment. The student is asked to values of determinants and to set up ratios of determinants by Cramer's Rule. It is on 1 page for easy printing and coded for SMART Response.

Assignment #2 is a 15 question multiple choice assignment. The student is asked to find values of determinants, match a system of equations to ratios of determinants, and use Cramer's Rule to determine if a system has 1 solution, no solution or infinitely many solutions. It is on 1 page for easy printing and coded for SMART Response.

Assignment #3 is a 15 question short answer and multiple choice file. The student is asked to find values of determinants, the value of the numerator and denominator in Cramer's Rule and to solve for a variable using Cramer's Rule. It is on 1 page for easy printing and coded for SMART Response.

Assignment #4 is a 15 question short answer and multiple choice file. It is a cumulative assignment based on assignments #1 through #3. It is on 1 page for easy printing and coded for SMART Response.

Thank you for looking

Total Pages
53 pages
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Teaching Duration
3 days
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