Tool:
Apples and Oranges 1 Decimal 
Screenshot:

Go to: 
http://play.google.com/store/apps/details
(opens a new window)

Description: 
This application is a basic tool for learning algebra. Users try to solve a system of linear equations with two equations and two unknown variables. It is based on the same problem used in the free app Adding Apples and Oranges, where only integers are used. This new program now works externally with decimals.
There is a video that can be used as support material showing GaussJordan, graphic approach, two weighing scales, Cramer's rule, and inverse matrix. 
Technology Type: 
Android  
Guide: 
User's Guide
(opens a new window)

Author: 
Maurici Carbó 
Language: 
English  
Cost: 
Requires payment for use 

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Tools: 
Adding Apples, Oranges, and Pears 

Adding Apples and Oranges 

Adding Apples, Oranges, Pears and Lemons 
Courses: 
Math 7 
Linear relationships, Find slope, Slopeintercept form, Equation of the line, Rect coordinate geometry, First quadrant, Geometry in the plane 
 Algebra 
Linear Equations, Slope Between Points, Finding Intercepts, Slope  Intercept Form, Point  Slope Form, Graphing, Parallel Lines, Perpendicular Lines, Linear Formulas, Analyzing Linear Data, Is It Linear?, Writing an Equation, Line of Best Fit, Linear Systems, Solve by graphing, Solve by substitution, Solve by combination, Inconsistent System, Applications 
 Algebra II 
Solving systems of equations, Cramer's Rule, Matrices, Elimination, Substitution 
