Could not load branches. Could not load tags. Latest commit. Git stats 13 commits. Failed to load latest commit information. View code. Limitations The method described in this document can recover the entries inputs and answers on the home screen.
Disclaimer This material is provided "as-is", without any express or implied warranty. Example This section contains a simple proof of concept. Back up any important data from the calculator before proceeding.
Press on to turn on the calculator. Press mode to show the options. That said, if CLASSIC non default option was highlighted, make sure to delete all inputs and results containing special symbols exponents, fractions, … before continuing as the calculator might crash after recovery when displaying those entries.
Press 2nd on on 2nd on on to restart the calculator twice and place the cursor at the beginning of an empty line on the home screen. The calculator should show the result 0. Full procedure This section describes a more complete procedure. The first step of this procedure is to find a value that we will call size : Look at the next section for more information on how to calculate the size of an entry. If the most recent calculation before reset resulted in an error : Size is the size of the expression that resulted in this error.
Otherwise If the most recent result before reset was not Error : Size is the size of that result plus one.
If size is strictly smaller than 16 : Press data. If it's not the case, insert or delete the right amount of cells to get 40 lines of zeros. Increment size by 8 and memorize the new value. If size is still strictly smaller than 16 : Press 2nd delete Increment size by 8 and memorize it.
Press 2nd 0 2. If size is equal to 16 : Press. I have been reviewing these for my classroom and thought perhaps the group might want to have this information, too. If you use one of these lessons, would you please post which one, if you modified it, and the learners reactions? I will do the same since we are starting classes next week for FY14! If you hear about how the lessons go or changes they made to a particular lesson please be sure to let the rest of us know!
Will this calculator be imbeded in the test on the computer, or will students be able to use a regular calculator? I have a major concern about a key that is not on the keyboard. I have a Texas Instrument 30X calculator sitting next to me and it does indeed have an equal sign - bottom right corner - shares the key with "enter". His is the IIS model - and the website that Brooke posts for activities is on this model.
Not sure but perhaps the one you are looking at is not the right model? Therefore the problem could be re-written:. Now, the problem isn't confusing. This is why I believe the equal sign has been removed from this calculator.
Does anyone know if there will be a program that simulates this calculator as used on the new GED13? Yes, there is an onscreen calculator. I am looking at my TI83 that I've had for almost a decade now and it has only an "enter" button.
It has text by the button, and that text says "solve" When I think about design choices they may not consider everything that you all do as experienced educators. They are computer guys telling the mini computer to do something. I spent many years teaching low level math in which we used very simple calculators 20 buttons at most, one of which was an equal sign.
I am learning a lot from this discussion so forgive my ignorance, How long has the GED had a specific caluculator as opposed to simply having individuals or institutions provide them based on a set of "calculator requirements" like other standardized tests? I agree with what has been said. I find this calculator to be very complex compared to the old one students had worked with.
I hope to try these lessons to become more acquainted and comfortable. I really don't agree with the notion of no equal sign. It is a very important symbol in mathematics! Doing fractions only gives improper fraction results unless you know the right keys to push. I will be studying it a lot to be able to teach it to my students. Thanks for sharing these lessons. All company, product and service names used in this document are for identification purposes only. All brands, product names, trademarks and copyrights are property of their respective owners.
Use of these names and brands does not imply endorsement. This procedure has only been thoroughly tested on one unit. Different versions of these models might exist. If the calculator becomes unresponsive or is behaving unexpectedly, it is highly recommended to reset it by pressing on and clear at the same time.
The calculator will be working normally again. This section contains a simple proof of concept. It should be tested on a unit containing one or more entries in memory not on one that has just been reset.
The unit will be reset before showing the ability to recover those entries. Here is a video illustrating this example. This section describes a more complete procedure. It will recover entries that were present before the reset, except the two most recent ones. That is, one expression and its associated result. This procedure should be done just after a reset. If the entries to recover were added in Classic mode, the calculator will crash or freeze when displaying the ones that contain those symbols.
For this to work, it's also imperative to remember the most recent result that was computed on the calculator or, the most recent input, if that result was Error , in order to determine where the next entry is stored in memory. The following steps should be done in chronological order. When a step contains " If " and the condition is not met, every sub-step must be skipped.
Don't forget that value as it will be used and modified multiple times. Also, memorize if that most recent result was an error or not as it will be needed for a later step. Otherwise If the most recent result before reset was not an error :. This section explains how to calculate the size of an entry in memory. It works with inputs and results.
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