Most inexpensive hand-held calculators on the market today have some memory functions, such as add to, subtract from, recall, and clear. Unfortunately, too few calculator users are familiar with the use of the e memory functions and, as a result, the opportunity to incorporate these calculator features into the elementary school mathematics curriculum is often overlooked. In the spirit of the recommendation in NCTM's Agenda for Action (1980) concerning the use of calculators in the classroom, this article demonstrates rhe use of the memory function by pre enting three activities that are appropriate for use in the middle grades (4–8). These activities are of interest to childrens, and their efllcient solution s are grea tly enhanced by the hand-held calculator's memory functions. (The constant arithmetic feature of the calculator is also required.) The calculator used in each activity is the Texas Instruments TI-1766. The particular memory key that will be di scussed are the AC, M+, and MR keys, which clear the memory and the di splay, add to the memory, and display (recall from) the memory, respectively. The use of the activities with other similar models may require minor modification.
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