Lesson 10: Memory
TEACHER’S GUIDE
Lesson 10: Memory
Overview | Use the calculator to add and subtract numbers and | |||||||||
| store the numbers in the calculator’s memory | |||||||||
Teacher Materials | “Calculator Memory”, “Adding Products with Memory”, | |||||||||
| and “Find the Total Cost Using Memory”, | |||||||||
| transparencies. | |||||||||
Student Materials | Pencil, Calculator, and “Million Memory Magic” | |||||||||
| worksheet. | |||||||||
Keys Introduced |
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| MRC |
| M+ | M- | ||||||
Teaching Notes | Talk to the students about memory, and how it works | |||||||||
| on a calculator. The memory icon will appear on the | |||||||||
| calculator screen when a number has been stored. | |||||||||
| To view the stored number, press the MRC button | |||||||||
| once. MRC stands for “Memory Recall & Clear”. If | |||||||||
| the MRC key is pressed twice, the memory is cleared. | |||||||||
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| Adds the displayed number to the memory of the | ||||||
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| M+ | ||||||||
| calculator | |||||||||
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| Subtracts the displayed number from the memory | |||||||
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| M- | ||||||||
| of the calculator | |||||||||
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| Displays the number from the memory onto | |||||||
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| MRC | ||||||||
| the screen of the calculator | |||||||||
MRC
MRC Clears the memory
The Million Memory Magic worksheet is for students to practice using the memory function of the calculator. It is to be done individually to test the skills learned in the lesson. Understanding this worksheet will show fulfillment and accomplishment with this lesson.
You should ask students to press the MRC key twice before the exercise … to make sure everyone starts with a clear memory.
Victor 900 Calculator Teacher’s Guide | 45 |