Texas Instruments TI-34 MultiView Manuel Page 18
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
8 TI-34 MultiView: A Guide For Teachers © 2007 TEXAS INSTRUMENTS INCORPORATED
4. Check the statistics calculations. After students
display
Òx (Sigma x), explain that Òx is the sum
of all the heart rates. Ask students:
• How many heartbeats were entered from all
of the student in one minute? This is
Òx
.
• How many students were entered? This is n
nn
n.
• How can we calculate the average heart rate?
This is
Ï
.
• Is the average heart rate higher or lower than
you expected?
5. Now we will see the effect of some exercise on
heart rate. To accommodate various student's
needs, pair students with other students who will
be able to complete the task. Also consider
designing some task that an individual student
can safely undertake to raise their heart rate.Tell
students:
If at any point during this portion of the activity
you experience pain, weakness, or shortness of
breath, stop immediately.
6. Have the students run in place for 2 minutes and
then give them these instructions:
a.
Time your pulse for 1 minute.
b.
Record your heart rate as before.
c. Enter the data into the calculator.
d. Compare the average heart rate after running
with the resting heart rate.
7. Now have the students do jumping jacks for 2
minutes. Instruct them to time their pulse for 1
minute again and record as before. Have them
enter the data into the calculator again and
calculate the average heart rate after jumping
jacks. Compare to the other 2 averages.
8. Instruct students to make a bar graph of the 3
sets of data they collected. Ask students:
• How are the bar graphs the same?
• How are they different?
• Is the data grouped the same, or is it more
spread out in one graph compared to another?
Σx
n
------
62.27272727=
³ Follow these steps:
1. View the statistical data.
n should equal the total number of
students sampled. For this example,
n = 22.
2. Press
$ to Ï to see the average
heart rate.
Ï = 62.27272727
3. Press
$ until you see Òx.
Òx = 1370
Note: The numbers show the results
for the example described in this
activity. Your students’ results will
vary depending on the size of the
group and the heart rate readings.
Heart rates — 1-variable statistics (Cont.)
- TI-34 MultiView™ 1
- About the authors 2
- Instruments Incorporated 3
- Table of contents 5
- About the teacher guide 7
- Home screen 8
- Display contrast 8
- EXAS INSTRUMENTS INCORPORATED 10
- Activities 11
- Introduction 13
- Activity 14
- Procedure 14
- Extension 14
- Star voyage — 15
- $ to Ï to see the average 18
- $ until you see Òx 18
- Heart rates — 19
- 1-variable statistics 19
- My favorite recipe — 25
- Next stop — fraction terminal 27
- (Continued) 29
- Next stop — fraction 31
- How to use the 35
- %' !" 39
- Mode (continued) 42
- Menus (continued) 46
- Last answer (ans) 48
- Answer toggle 49
- Clearing and correcting 51
- Delete and insert 52
- Enter 21595 53
- Clear the 95 53
- Clear the entry 53
- Press Display 53
- Basic math 55
- Negative numbers 57
- per week. He saves 58
- Ä, Å, Æ, r) 60
- Order of operations 62
- (MathPrint™ mode) 63
- Numeric notation 65
- Scientific notation 67
- Fractions 69
- Fractions (continued) 70
- 10 < 71
- Mixed numbers 72
- Mixed numbers (Continued) 73
- 2 8 25 % 75
- Mode setting n/d: 76
- Math menu 77
- Absolute value 78
- Rounding a number 79
- Integer and fractional part 80
- Minimum and maximum 81
- Least common multiple 83
- Greatest common divisor 84
- Cube and cube root 85
- Remainder 86
- Decimals and decimal places 87
- Integer divide 89
- Stored operations 91
- T 5 < 93
- 4 V 5 < 94
- V 5 < 95
- Using a power as a constant 97
- G 3. Notice the different 98
- Memory and stored variables 99
- Store, variables 100
- Store, variables (Continued) 101
- Store, recall 102
- Store, recall (Continued) 103
- (Continued) 109
- Statistics 113
- Entering 1-var stat data 114
- Îx), the sum of 115
- Òx), and the sum of the 115
- Removing data points 116
- Entering 2-var stat data 117
- Viewing the statistics 118
- 32 E < 119
- Probability 121
- Combination (nCr) 122
- Permutation (nPr) 123
- Factorial (!) 124
- Random (rand) 125
- Random integer (randint) 127
- Circumference 134
- Area (continued) 136
- 27 8 4 G 138
- Square roots 139
- 2 8 3 G 140
- 2 G 10 < 141
- 2 G 15 < 141
- 125 < 142
- Reciprocals 143
- Reciprocals (Continued) 144
- Ä (degrees) 145
- 98Ä 15' 147
- Degrees and radians 149
- Polar to rectangular 152
- Trigonometry 153
- 1 8 5 P 154
- 12 E < 154
- Sine (Continued) 155
- 5 V %B 2 156
- 74 E < 156
- Cosine (Continued) 157
- 78 P %B 158
- 27 E < 158
- Tangent (Continued) 159
- Inverse sine 160
- Inverse sine (Continued) 161
- Inverse cosine 162
- Inverse cosine (Continued) 163
- Inverse tangent 164
- Inverse tangent (Continued) 165
- Quick reference to keys 167
- KEY FUNCTION 168
- (continued) 172
- Display indicators 173
- Error messages 175
- Error messages (continued) 176
- For general information 177
- For technical support 177
- Battery information 179
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