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Victor 900 Teachers Manual
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Victor 900 Teachers Manual

Victor calculator user manual
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Victor 900 Calculator
Teacher's Guide
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Summary of Contents for Victor 900

  • Page 1 Victor 900 Calculator Teacher’s Guide...
  • Page 2 Teaching Notes Distribute the calculators. Use the transparency to discuss the keys and display of the Victor 900. Ask students to follow along on their worksheet. The calculator on and clears the display. Write “ON/AC” on the appropriate key and ask the students to do the same.
  • Page 3 Lesson 1: Learning the Victor 900 Calculator TRANSPARENCY Learning the Victor 900 Calculator AntiMicrobial Victor 900 Calculator Teacher’s Guide...
  • Page 4 Lesson 1: Learning the Victor 900 Calculator Victor 900 Calculator ON/AC Victor 900 Calculator Teacher’s Guide AntiMicrobial ÷ TRANSPARENCY...
  • Page 5 Lesson 1: Learning the Victor 900 Calculator STUDENT WORKSHEET Learning the Victor 900 Calculator AntiMicrobial Victor 900 Calculator Teacher’s Guide...
  • Page 6 Lesson 2: Using the Victor 900 Calculator Lesson 2: Using the Victor 900 Calculator Overview Use the calculator to enter and view numbers. Teacher Materials “Victor 900 Calculator” transparency. Student Materials Calculator, “Calculator Battle” worksheet, “Calculator Battle Score Sheet”, pencil.
  • Page 7 Lesson 2: Using the Victor 900 Calculator STUDENT WORKSHEET Calculator Battle 2 5 1 7 6 9 8 4 3 Victor 900 Calculator Teacher’s Guide...
  • Page 8 Lesson 2: Using the Victor 900 Calculator Calculator Battle Score Sheet Student A Name: Hits Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET Student B Name: Hits...
  • Page 9 Ask the students to press the buttons as illustrated. The “Calculator Connections” worksheet provides additional practice. Ask students to solve each addition problem with the calculator and connect the box with the correct answer by drawing a line. Victor 900 Calculator Teacher’s Guide TEACHER’S GUIDE...
  • Page 10 Lesson 3: Addition 1 + 3 + 5 = ? Press these buttons: .ON/AC. ----------------------------- .ON/AC. Victor 900 Calculator Teacher’s Guide Addition 1 + 2 = ? The calculator shows: ------------------------------ TRANSPARENCY...
  • Page 11 Lesson 3: Addition Correcting Wrong Entries Press these buttons: .ON/AC. .CE. Victor 900 Calculator Teacher’s Guide 6 + 3 = ? The calculator shows: TRANSPARENCY...
  • Page 12 Add the numbers in the boxes on the left side of the page. Draw a line to the box on the right side with the correct answer. + 41 + 12 + 19 + 21 + 33 + 74 + 22 Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET...
  • Page 13 Display the “Subtraction” transparency. The “Calculator Connections” worksheet provides additional practice. Ask students to solve each subtraction problem with the calculator and connect the box with the correct answer by drawing a line. Victor 900 Calculator Teacher’s Guide TEACHER’S GUIDE...
  • Page 14 Lesson 4: Subtraction Subtraction Press these buttons: .ON/C. ----------------------------- .ON/C. Victor 900 Calculator Teacher’s Guide 9 - 5 = ? 8 - 1 - 2 = ? The calculator shows: ------------------------------ TRANSPARENCY...
  • Page 15 Subtract the numbers in the boxes on the left side of the page. Draw a line to the box on the right side with the correct answer. - 11 - 556 - 18 Victor 900 Calculator Teacher’s Guide - 22 - 51 - 11 - 42 - 29...
  • Page 16 Use your calculator to subtract the big numbers in the boxes and write down the answers. Circle the biggest answer. 72,456 -51,432 5,687 -3,216 780,780 -175,175 Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET 189,456 -10,432 676,345 -99,999 98,744 -10,221 984,300...
  • Page 17 Note: The constant is removed from memory when the ON/AC button is pushed. Use the “Fastest Fingers” transparency to play a fun game that reinforces the constant function. Use the “Constant Calculations” worksheet for practice. Victor 900 Calculator Teacher’s Guide TEACHER’S GUIDE Key.
  • Page 18 Repetitive Subtraction and 15 - 3 - 3 - 3 = ? 6 + 2 + 2 + 2 = ? Press these buttons: .ON/AC. 3. =. ----------------------------- .ON/AC. 2. =. Victor 900 Calculator Teacher’s Guide Addition The calculator shows: ------------------------------ TRANSPARENCY...
  • Page 19 “Go” add one to your calculator as many times as you can until the teacher says “stop”. The student with the largest number has the fastest fingers. Winning total: ________________________ Name of Student with the Fastest Fingers _________________________________ Victor 900 Calculator Teacher’s Guide...

  • Page 20: Constant Calculations

    604 + 4 + 4 + 4 + 4 + 4 + 4 = ________ 9987 – 3 – 3 – 3 – 3 – 3 – 3 = ________ 100 + 9 + 9 + 9 + 9 + 9 + 9 = ________ Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET...
  • Page 21 Ask students to solve each multiplication problem with the calculator and connect the box with the correct answer by drawing a line. Victor 900 Calculator Teacher’s Guide Cut out the Multiplication Calculator Battle cards (one set for each pair of students).
  • Page 22 Lesson 6: Multiplication Multiplication Press these buttons: .ON/AC. ----------------------------- .ON/AC. Victor 900 Calculator Teacher’s Guide 6 X 8 = ? 43 X 5 = ? The calculator shows: ------------------------------ TRANSPARENCY 215.
  • Page 23 5 156 X 921 = ____________ 6 48 X 56 = __________ 7 11 X 9 = __________ 14 19 X 40 = __________ Victor 900 Calculator Teacher’s Guide Down 2 5 X 4 = __________ 3 47 X 20 = __________...
  • Page 24 Lesson 6: Multiplication Multiplication Mountain Victor 900 Calculator Teacher’s Guide Answer Key TRANSPARENCY...
  • Page 25 Lesson 6: Multiplication Multiplying Multiple Numbers 6 X 8 X 2 = ? Press these buttons: .ON/AC. Victor 900 Calculator Teacher’s Guide TRANSPARENCY The calculator shows:...
  • Page 26 Lesson 6: Multiplication Repetitive Multiplication Press these buttons: .ON/AC. Victor 900 Calculator Teacher’s Guide 4 X 2 = ? 4 X 4 = ? 4 X 6 = ? 4 X 8 = ? The calculator shows: TRANSPARENCY...
  • Page 27 Lesson 6: Multiplication STUDENT WORKSHEET Multiplication Calculator Battle 12 51 17 23 48 9 37 38 39 65 42 15 Victor 900 Calculator Teacher’s Guide...
  • Page 28 Lesson 6: Multiplication Multiplication Calculator Battle Score Sheet Student A Name: Hits Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET Student B Name: Hits...
  • Page 29 Multiply the numbers in the boxes on the left side of the page. Draw a line to the box on the right side with the correct answer. X 35 X 20 X 11 X 44 Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET 2,816...
  • Page 30 The “Calculator Connections IV” worksheet provides additional practice. Ask students to solve each division problem with the calculator and connect the box with the correct answer by drawing a line. Victor 900 Calculator Teacher’s Guide ÷. TEACHER’S GUIDE...
  • Page 31 Lesson 7: Division TRANSPARENCY Two Methods for Writing Division Problems Hand Written Method Calculator Method Quotient Divisor 48 ÷ 6 = 8 Dividend Quotient Divisor Dividend Victor 900 Calculator Teacher’s Guide...
  • Page 32 Lesson 7: Division Press these buttons: .ON/AC. ÷. ----------------------------- .ON/AC. ÷. Victor 900 Calculator Teacher’s Guide Division 48 ÷ 6 = ? 81 ÷ 3 = ? The calculator shows: ------------------------------ TRANSPARENCY...
  • Page 33 Lesson 7: Division Repetitive Division Press these buttons: .ON/AC. ÷. Victor 900 Calculator Teacher’s Guide 100 ÷ 4 = ? 40 ÷ 4 = ? 88 ÷ 4 = ? 52 ÷ 4 = ? The calculator shows: TRANSPARENCY 100.
  • Page 34 Divide the numbers in the boxes on the left side of the page. Draw a line to the box on the right side with the correct answer. ÷ 25 1000 ÷ 11 Victor 900 Calculator Teacher’s Guide ÷ 7 ÷10 ÷ 2 ÷ 4 ÷ 5 ÷...
  • Page 35 The “Calculator Connections V” worksheet provides additional practice. Ask students to solve each division problem with the calculator and connect the box with the correct answer by drawing a line. Victor 900 Calculator Teacher’s Guide ÷. TEACHER’S GUIDE...
  • Page 36 Lesson 8: Division with Remainders TRANSPARENCY Two Methods for Writing Division with Remainder Problems Hand Written Calculator Method Quotient Remainder Divisor Remainder 48 ÷ 5 = 9.6 Dividend Quotient Divisor Dividend Victor 900 Calculator Teacher’s Guide...
  • Page 37 Lesson 8: Division with Remainders Division with Remainders Press these buttons: .ON/AC. ÷. ----------------------------- .ON/AC. ÷. Victor 900 Calculator Teacher’s Guide 48 ÷ 5 = ? 74 ÷ 6 = ? The calculator shows: ------------------------------ 12.3333333 TRANSPARENCY...
  • Page 38 Lesson 8: Division with Remainders Repetitive Division with Remainders Press these buttons: .ON/AC. ÷. Victor 900 Calculator Teacher’s Guide 100 ÷ 6 = ? 40 ÷ 6 = ? 88 ÷ 6 = ? 52 ÷ 6 = ? The calculator shows: TRANSPARENCY 100.
  • Page 39 Lesson 8: Division with Remainders Calculating the Remainder Press these buttons: .ON/AC. ÷. ----------------------------- ----------------------------- ═. Victor 900 Calculator Teacher’s Guide 76 ÷ 8 = ? The calculator shows: ------------------------------ ------------------------------ TRANSPARENCY remainder is 4.
  • Page 40 Draw a line to the box on the right side with the correct answer. ÷ 5 ÷ 9 ÷ 12 ÷ 26 ÷ 8 ÷ 4 ÷ 21 Victor 900 Calculator Teacher’s Guide ÷7 STUDENT WORKSHEET 36.571428 8.8846153 12.75 3.5555555 32.8 1.9166666...
  • Page 41 It shows the difference between estimated and exact answers. It is another way to improve skills and learn more about decimals and using the calculator. Victor 900 Calculator Teacher’s Guide ● TEACHER’S GUIDE...
  • Page 42 Lesson 9: Decimals 2.5 + 5.3 = ? Press these buttons: .ON/AC. 5.3. ----------------------------- .ON/AC. 6.1. Victor 900 Calculator Teacher’s Guide Decimals 7.4 - 6.1 = ? The calculator shows: ------------------------------ TRANSPARENCY 7.4.
  • Page 43 Draw a line to the box on the right side with the correct answer. + 5.3 - 1.7 +7.1 + 1.2 - 2.6 + 4.1 - 1.4 - 2.2 Victor 900 Calculator Teacher’s Guide 16.4 23.1 14.7 STUDENT WORKSHEET 21.7 20.5 13.8 12.5...
  • Page 44 Example: Estimate 4.5 + 6.7 = 3.7 + 5.6 = 7.7 + 4.3 = Victor 900 Calculator Teacher’s Guide I Love Decimals 5.7 + 2.4 = 3.8 - 9.2 = 6.3 - 9.0 = 9.1 + 7.8 =...
  • Page 45 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 Adds the displayed number to the memory of the Subtracts the displayed number from the memory MRC.

  • Page 46: Calculator Memory

    Lesson 10: Memory Calculator Memory MRC. MRC. MRC. Victor 900 Calculator Teacher’s Guide Adds the displayed number to the memory of the calculator Subtracts the displayed number from the memory of the calculator Recalls and displays the number in memory...
  • Page 47 Press these buttons: ON/AC MRC MRC ON/AC 2 x . 99 .M+. . 52 MRC. Victor 900 Calculator Teacher’s Guide 2 x .86 = ? 3 x 1.49 = ? 4 x .52 = ? The calculator shows: MEMORY 1.98 MEMORY 4.47 MEMORY 4.47.
  • Page 48 Find the Total Cost Using Memory $13 Discount = ? Press these buttons: ON/AC MRC MRC ON/AC 6 x 2 MRC. Victor 900 Calculator Teacher’s Guide 3 $5 Items 6 $2 Items The calculator shows: MEMORY 15 MEMORY 12 MEMORY 12...
  • Page 49 1,000,000 ÷ 1 ═ 1,000,000 ÷ 3 ═ 1,000,000 ÷ 5 ═ 1,000,000 ÷ 7 ═ 1,000,000 ÷ 9 ═ Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET 1,000,000 ÷ 2 ═ 1,000,000 ÷ 4 ═ 1,000,000 ÷ 6 ═ 1,000,000 ÷ 8 ═...
  • Page 50 Victor 900 Calculator Teacher’s Guide key acts like the TEACHER’S GUIDE key so...
  • Page 51 Lesson 11: Percents $3.70 - 12% discount =? $7.50 + 6% sales tax= ? Press these buttons: ON/AC ON/AC 3.70 – 12 % ------------------------------ 7.50 + Victor 900 Calculator Teacher’s Guide Percents The calculator shows: ----------------------------------- TRANSPARENCY 3.70 3.256 7.50 7.95...
  • Page 52 Lesson 11: Percents More Percents $4.90 - 15% discount=? $8.20 + 7% sales tax Press these buttons: ON/AC ON/AC 4.90 - ------------------------------- 8.20 + Victor 900 Calculator Teacher’s Guide TRANSPARENCY The calculator shows: 4.90 4.165 ------------------------------------ 8.20 8.774...
  • Page 53 Offer a 10% discount. Use 5% for the Tax rate and calculate the final price. ___________________’s Park Name of Twister Ride Original $10.00 Cost of Ride % discount $9.00 Sale Price Sales Tax $9.45 Final Cost Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET...
  • Page 54 The worksheet “Interesting Ride” is fun and interesting to students. Word problems that portray real life situations can better focus the mind and show how interest will one day affect the student. Victor 900 Calculator Teacher’s Guide key acts like the TEACHER’S GUIDE key so...

  • Page 55: Simple Interest

    Lesson 12: Interest Simple Interest $750.00 at 13% =? $299.00 at 3% =? Press these buttons: ON/AC ON/AC 750 x 13 % ------------------------------ 299 x Victor 900 Calculator Teacher’s Guide TRANSPARENCY The calculator shows: 750. 97.5 ----------------------------------- 299. 8.97...
  • Page 56 Lesson 12: Interest Total with Interest $490 + 15% =? $820 + 7% =? Press these buttons: ON/AC ON/AC 490 + ------------------------------- 820 + Victor 900 Calculator Teacher’s Guide TRANSPARENCY The calculator shows: 490. 563.5 ------------------------------------ 820. 877.4...
  • Page 57 Bob’s lunch and says to pay him back in 4 days with 2% interest for everyday until he pays. How much money will Mr. Bob have to pay Mr. Smith total in 4 days? Victor 900 Calculator Teacher’s Guide STUDENT WORKSHEET INTEREST...
  • Page 58 Show how 100 is the square of 10. Explain that 10 is the square root of 100. Provide copies of the “Square Grid” worksheet to students. Ask the students to draw colored boxes representing the Square of 1, 2, and 4. Victor 900 Calculator Teacher’s Guide √. TEACHER’S GUIDE...
  • Page 59 When small squares are used to make a larger square you can see why we use the term “Square”. 3 high ═ 9 is the “Square” of 3. 3 wide 3 is the “Square Root” of 9. Victor 900 Calculator Teacher’s Guide...
  • Page 60 Lesson 13: Square Roots and Squares Square Roots Press these buttons: ON/AC ON/AC √ ---------------------------- √ ----------------------------- √ Victor 900 Calculator Teacher’s Guide √ 121 = ? √ 225 = ? √ 36 = ? The calculator shows: ---------------------------------- ---------------------------------- TRANSPARENCY...
  • Page 61 Lesson 13: Square Roots and Squares Press these buttons: ON/AC ON/AC 12 x 12 ------------------------------- 4 x 4 Victor 900 Calculator Teacher’s Guide Squares The calculator shows: ------------------------------------ TRANSPARENCY 144.
  • Page 62 Lesson 13: Square Roots and Squares STUDENT WORKSHEET Square Grid Victor 900 Calculator Teacher’s Guide...