# geometry and the ti nspire cx--camt 2017

January 26, 2018 | Author: api-292061267 | Category: Cursor (User Interface), Triangle, Angle, Geometry, Mathematics

#### Description

Geometry  and  the  TI-­‐NspireTM  CX       Creating  an  Labeling  a  Triangle   1. Open   a   new   TI-­‐Nspire   CX   document   and   choose  “Geometry”.     2. Press   “Menu”   “Shapes”   and   choose   a   shape   that  you  would  like  to  create.    We  will  create  a   triangle  in  the  example.    (See  Figure  1)       Move   the   cursor   and   press   “Click”   three   times   until  the  triangle  is  created.    (See  Figure  2)

Figure  1

Figure  2

3. To   label   the   figure,   press   “Menu”   “Actions”   “Text”.  (See  Figure  3)     4. Next,   move   the   cursor   to   each   point   (make   sure   that   the   cursor   indicates   “point”),   press   “Click”,   and   type   the   letter   desired   for   the   point.    Press  “Click”  when  finished  typing  each   point  label.  (See  Figure  4)    Press  “ctrl”  “shift”   for  ALL  CAPS.     5. Repeat  step  4  for  each  point.

Figure  3

Figure  4

Measuring  Angles   1. Press   “Menu”   “Measurement”   and   choose   a   type   of   measurement.     We   will   measure   angles  in  the  example.    (See  Figure  5)       2. Measure  each  angle  just  as  you  name  an  angle;   move  from  one  point  to  the  next,  where  the   vertex  of  the  angle  desired  is  the  second  point   selected.  Move  the  cursor  to  the  location  of  a   point  (make  sure  that  you  see  the  word  “point”)   then  press  “Click”.

Figure  6

Figure  5

3. Repeat    step  2  for  each  point  in  order  until  the   angle  measurement  is  shown.  (See  Figure  6)

4. Repeat  steps  2  and  3  for  the  remaining  two   angles.    Press  “ESC”  to  remove  the  icon  in  the   upper  lefthand  corner.  (See  Figure  7)   5. Grab  and  move  any  labels  or  measurements  by   pressing  and  holding  “Click”  on  the  item  that   you  want  to  grab.    Then  brush  your  finger  across   the  TouchPad  to  move  the  item.

6. If  you  ever  see  items  “flashing”  and  cannot  grab   properly,  press  “Esc”  and  try  step  5  again.

Figure  7

Creating  Calculations   7. Calculate  the  sum  of  the  measures  of  the  angles  of  a  triangle:   A.  Create  a  text  box:    “Menu”  “Actions”    “Text”   B.   Move   your   cursor   to   a   convenient   location   and   press   “Click”   to   open  the  textbox.   C.    Type  “A+B+C”   D.   Press   “Menu”   “Actions”   “Calculate,”   move   the   cursor   to   the   textbox  from  step  C,  and  press  “Click”    (See  Figure  8)   E.    Press  “Click”  on  each  of  the  three  angle  measurements.   F.    Move  the  result  of  the  calculation  (180)  to  a  convenient  location   and  press  “Click”.   G.    Press  “esc”  to  eliminate  the  icon  in  the  upper  lefthand  corner.     8. To   increase   the   number   of   decimal   places,   hover   over   the   measurement  in  question  until  you  see  the  word  “text”,  then  press   “+”.      (See  Figure  9)     9. Move   the   cursor   to   any   point   until   you   see   an   open   hand—make   sure   “Point”   is   indicated,   not   “Label,”   then   grab   that   point   by   pressing  and  holding  “Click”  until  the  hand  closes.

10.  Move  the  point  by  brushing  your  finger  across  the  TouchPad  and     notice   the   total   sum   of   the   angles   as   the   angle   measurements     change.    (See  Figure  10)

Figure  8

Figure  9

Figure  10

CAMT  2017  Session  2171  The  TI-­‐NspireTM  CX  Technology—Activities  for  Beginners     Valerie  Hudson                 Texas  Instruments  Instructor

Vhudsonmath.weebly.com

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