Math warehouse has two sets that look pretty good. The first set is for linear equations and has the students write the equation associated with problems involving cabs. Out where I am, the only cabs use a flat rate system such as $6.00 from the airport to the hotel and they often take 3 to 5 passengers in the cab to various locations. These problems would help build a knowledge base for my students who are not accustomed to the way normal cabs charge. After writing the equation, I can have them either build a table in a spread sheet and then graph it or I can have them create a graph on a graphing utility and then create the table by reading the graph.
The second set that the math warehouse has deals with dropping things from a certain height based on parabolas . I like this because you can adjust some of the problems to discuss dropping supplies into an area that was hit by a tidal wave such as in Indonesia a few years ago. The ones that deal with dropping something off a building, just change it to someone who is mischievous and then have them do the calculations. Again, I can add in the spreadsheet, point graph or line graph.
I found this linear equation activity using bank deposits. This activity focuses on straight deposits like in a piggy bank but could easily be extended to look at various interest rates to see how those effect the balance and could be done on a spread sheet. This activity could easily be modified to discuss pay, theater or movie tickets, plane tickets, car rental, etc.
I am about to loose the internet for the afternoon so I will continue this tomorrow with one or two lesson plans/ideas tomorrow.