My first six months with. By Damien Bushby of Blackburn High School, Victoria Presented at MAV Dec, 2007

Transcription

1 My first six months with ClassPad. By Damien Bushby of Blackburn High School, Victoria Presented at MAV Dec,

2 Which calculator? Continuation with current company. Trial of new model. Fat fingers and poor typing. Check out the opposition. Ease of learning. Company support. One calculator for Further and Methods. 2

3 Open the case with one hand. Use your other hand to hold the body. The case will fit on the back of the body. 3

4 At the back of the ClassPad is a reset button (P). This should be used when the stylus doesn t tap correctly or when the language has changed. Alternatively a less dramatic approach is: MENU Touch Panel Alignment Then tap the centre of the 4 crosses. 4

5 usb Stylus Shortcuts Delete Left Mouse Clear line or highlighted area Calc. Link Negative / ALT Execute 5

6 Use the stylus to go to the Main screen. Either using the icon on the Menu screen. Or the shortcut at the bottom of the screen. 6

7 To remove everything from the screen. 1. Use the stylus, or pen lid on a pen. 2. Edit Menu 3. Clear All 4. OK Edit Clear All OK 7

8 It is also advisable to Clear All Variables as well. Edit Clear All Variables OK This will not clear or To do this either Action Command DelVar f or 1. Variable Manager main 2. Tick f 3. Edit Delete OK Close Close 8

9 Ensure settings are correct. 9

10 There are a variety of settings. I generally ensure it is set to : 10

11 If you want binary calculations for embedded microprocessors this is useful. The Bin on the bottom left usually indicates the student is in the wrong setting and it should be changed. 11

12 Alg TAP The Alg setting is the usual setting. Assist The Assist setting shows the implied operations. It does not perform the algebraic calculations. In this case I used the x from the main keyboard. Note the horizontally centred dot is not a decimal but the multiplication operand. 2 x = 2 x 12

13 Standard In Standard mode answers are exact answers such as fractions and surds. TAP Decimal In Decimal mode all answers are decimals. 13

14 By highlighting the answer and pressing this button the answer changes : to Decimal (in Standard mode) : to Standard (in Decimal mode). 14

15 Real TAP Cplx In Real mode an answer containing an imaginary part will either give No Solution or produce an error. The Cplx mode ensures answers with an imaginary part are included. 1 = i 15

16 Click the Keyboard key on the main keypad. Then use the stylus to click the mth tab. This gives the maths keyboard. Tap the return to keyboard main tab button if present. Tap the TRIG button to go to the maths trigonometry sub keyboard. 16

17 Care should be taken that the correct angle mode is set. The angle type can be included to override the general setting as shown below. 17

18 Solving equations with Algy 2 18

19 Teaching equations with 19

20 Clear the Algy 2 screen File New OK To move to the next line press the EXE button. 20

21 Creates new Zone below Checks the logic from the top. Checks the logic from the previous line. Logic and Logic or No Solution x in Real Numbers Set 21

22 Opposite of + is Opposite of is + 3 x = 3 x Opposite of is Opposite of is 22

23 9 The from or from keyboard 2D main menu > correct logic x incorrect logic 23

24 By deleting parts of each step and saving; a set of problems can be created that can be transferred to the students. 24

25 Investigating linear graphs with Graph&Table 25

26 Go to the MENU then go to Graph&Table 26

27 Various settings can be altered via the menu. The ClassPad manual gives a good description of each option, though most are obvious. 27

28 To delete: tap each line and press Tap on the line to the right of the equation to change its type. Tap the graph button on the top left to display the ticked graphs. 28

29 Find the x intercept of a linear graph with Graph&Table 29

30 Move graph Graph window settings. Table settings Display graph Display table Inequalities for graphs Find the x intercept Zoom box Derivatives table 30

31 1. Analysis G Solve Root 2. then mouse to pick graph 3. then EXE Use the up and down mouse arrows to cycle through the graphs. x intercept = ( 2,0 ) 31

32 Quadratic calculations in Main 32

33 Define y x x x 2 6( ) = 2 15 By choosing y6 the function is available from Graph&Table. The y must come from keyboard abc NOT variables or hard keyboard. The x is from the keyboard. Action Command Define 33

34 1. Highlight y6(x) 5. Highlight y6(x) 6. then Interactive Transformation factor 2. then Edit Copy Factor 3. tap new line 4. then Edit Paste y x = x x = x + x 6( ) ( 3)( 5) 34

35 To solve for the x intercepts 1. Highlight y6(x)=0 2. then Interactive Advanced solve OK Solve x intercepts = ( 3,0) and (5,0) 35

36 Differentiate y6 (x)=0 x coordinate of turning point 1. Highlight y6(x) from y6(x)=0 2. Interactive Calculation diff OK 3. Highlight line 4. Interactive Advanced solve turning point = (1, 16) 36

37 Double Differentiation Copy to the next line 1. Highlight line 2. Interactive Calculation diff OK y6''( x ) > 0 hence a minimum 37

38 Integration anti differentiation 1. Highlight y6(x) 2. Interactive Calculation 3. +C

39 Integration anti differentiation For variables: either mth VAR or 2D VAR store 39

40 Quadratics with Graph&Table 40

41 Go to the MENU then go to Graph&Table 41

42 As was x 2 2x 15 Defined as y6(x) it is on Sheet1 of Graph&Table. Untick y1 to y5 and graph the function. Graph Change window settings to fit the graph. Then Change window directly, through zoom, or arrows then Arrows needs Graph Format G Controller ticked. 42

43 Arrows on graph move graph in that direction. Coordinates shown below graph. 43

44 Analysis G Solve Root x intercepts Analysis G Solve y Intercept Analysis G Solve Max No maximum turning point 44

45 Analysis G Solve Min Analysis Sketch Cls Analysis G Solve dx Analysis G Solve dx Analysis Sketch Cls Analysis G Solve dx 45

46 Determine the quadratic equation from 3 points. 46

47 ( x, y ) = {(1, 16),(2, 15),(3, 12)} Go to Statistics Enter the data (x,y)=(list1,list2) Beware the time delay while entering the numbers. You may lose the first digit of the number. 47

48 Alternatively in Main ( x, y ) = {(1, 16),(2, 15),(3, 12)} 48

49 Calc Quadratic Reg Statistics button 49

50 Hence ( x, y ) = {(1, 16), (2, 15),(3, 12)} Alternatively in Main To add an extra line tap the icon again. Variables from mth VAR or 2D VAR 50

51 y = 1( x + 3)( x 5) = 1( x 5)( x + 3) y = 2 1( x 1) 16 51

52 Keyboard mth Keyboard mth CALC Keyboard mth TRIG Keyboard mth OPTN 52

53 Keyboard mth VAR Keyboard abc Keyboard mth VAR CAP Keyboard abc CAP 53

54 Keyboard abc Keyboard abc MATH Keyboard abc CAP 54

55 Keyboard abc SMBL Keyboard cat 55

56 Keyboard cat 56

57 Keyboard cat 57

58 Keyboard cat 58

59 Keyboard cat 59

60 Keyboard cat Keyboard 2D CALC ADV 60