Victor 900 manual Lesson 13 Square Roots and Squares

Page 58

Lesson 13: Square Roots and Squares

TEACHER’S GUIDE

Lesson 13: Square Roots and Squares

Overview

Use the calculator to determine the square and

 

square root of numbers.

Teacher Materials

“Why Call it the “Square”, “Square Roots”, and

 

“Squares” transparencies.

Student Materials

Crayons, Calculator, and ”Square Grid” worksheet.

Keys Introduced

 

 

 

 

 

Teaching Notes

Remember to explain that Square roots and Squares

 

are inverses of each other.

 

Write the following equation on the board:

 

10 X 10 = 100

 

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

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Contents Teacher’s Guide Lesson 1 Learning the Victor 900 Calculator ON/ACLearning the Victor 900 Calculator 900Victor 900 Calculator AntiMicrobialStudent Worksheet Lesson 2 Using the Victor 900 Calculator Calculator Battle Calculator Battle Score Sheet Student a Name Student B Name HitsLesson 3 Addition Addition + 2 = ? + 3 + 5 = ? Press these buttons Calculator showsCorrecting Wrong Entries + 3 = ? Calculator Connections Lesson 4 Subtraction Subtraction = ? 2 = ? 186 222 677 121 164 211 Big Number Math 55,221Lesson 5 Repetitive Subtraction and Addition Repetitive Subtraction Addition 15 3 3 3 = ? + 2 + 2 + 2 = ? Fast Fingers Constant Calculations Lesson 6 Multiplication Multiplication 8 = ? 43 X 5 = ? Multiplication Mountain Answer Key Multiplying Multiple Numbers 8 X 2 = ? Repetitive Multiplication 2 = ? 4 = ? 6 = ? 8 = ? Multiplication Calculator Battle Multiplication Calculator Battle Score Sheet Calculator Connections Lesson 7 Division Two Methods for Writing Division Problems 48 ÷ 6 =Division 81 ÷ 3 = ?100 125 ÷ 49 ÷ 1000 ÷10 66 ÷ 72 ÷ 888 ÷ 550 ÷ 147 ÷ 110 222 Lesson 8 Division with Remainders Two Methods for Writing Division With Remainder Problems 48 ÷ 5 =Division with Remainders 48 ÷ 5 = ? 74 ÷ 6 = ? 6666666 14.666666Calculating the Remainder 76 ÷ 8 = ? Calculator Connections Lesson 9 Decimals Decimals + 5.3 = ? 6.1 = ? 16.4 + +7.1 23.1 14.7 21.7 20.5 13.8 12.5 Love Decimals Estimate 8.1 CalculatorLesson 10 Memory MRCCalculator Memory MRCPress these buttons Adding Products with Memory86 = ? 1.49 = ? 52 = ? 1 =Memory MRC Million Memory Magic Lesson 11 Percents Percents $3.70 12% discount =? $7.50 + 6% sales tax= ? More Percents $4.90 15% discount=? $8.20 + 7% sales tax $10.00 Lesson 12 Interest Simple Interest $750.00 at 13% =? $299.00 at 3% =? 750490 Total with Interest $490 + 15% =? $820 + 7% =?820 INTERESTing Ride Hop aboard and get ready for the INTERESTing rideLesson 13 Square Roots and Squares Why Call it the Square? Square Roots √ 121 = ? 121 225Squares 122 = ? 42 = ? 144Square Grid