1
00:00:00,750 --> 00:00:01,310
Meet Ada.

2
00:00:01,370 --> 00:00:02,470
Her homework is finished.

3
00:00:02,670 --> 00:00:04,270
The answer looks perfectly clear.

4
00:00:04,410 --> 00:00:06,430
But close the screen, and something changes.

5
00:00:08,750 --> 00:00:11,590
Does artificial intelligence
help you learn, or just finish?

6
00:00:11,890 --> 00:00:14,290
The difference shows up
when the help goes away.

7
00:00:16,250 --> 00:00:17,950
Finishing with help is one test.

8
00:00:18,070 --> 00:00:19,490
Doing it alone is another.

9
00:00:19,750 --> 00:00:22,970
Remembering later, and solving a
different problem, are two more.

10
00:00:25,250 --> 00:00:28,600
In a randomized study of nearly a thousand
high school mathematics students in

11
00:00:28,610 --> 00:00:31,860
Turkey, an unrestricted chatbot
improved practice grades by forty eight

12
00:00:31,870 --> 00:00:34,370
percent, compared with the control group.

13
00:00:36,250 --> 00:00:39,890
But on the exam without the tool, that
group scored seventeen percent lower.

14
00:00:40,090 --> 00:00:43,190
Better homework performance had hidden
weaker independent performance.

15
00:00:45,250 --> 00:00:49,710
A tutor designed around teacher supplied
hints largely removed that penalty.

16
00:00:49,870 --> 00:00:53,600
It did not produce a statistically
significant exam improvement over the

17
00:00:53,610 --> 00:00:54,350
control group.

18
00:00:57,250 --> 00:01:01,180
In a separate college physics experiment,
a carefully designed tutor led to

19
00:01:01,190 --> 00:01:04,270
higher immediate test scores
than an active classroom lesson.

20
00:01:06,250 --> 00:01:08,170
These are different designs
and different settings.

21
00:01:08,470 --> 00:01:11,190
Neither result tells us what every
learner will remember months later.

22
00:01:13,750 --> 00:01:16,470
So, when learning is the goal,
give the tool a different job.

23
00:01:16,610 --> 00:01:18,690
Let it support the thinking
you need to practise.

24
00:01:22,250 --> 00:01:22,740
Step one.

25
00:01:22,750 --> 00:01:23,630
Make an attempt.

26
00:01:23,770 --> 00:01:26,530
If you know enough to start, put
your own first step on the page.

27
00:01:29,250 --> 00:01:32,310
For a completely new topic, study
a clear worked example first.

28
00:01:32,530 --> 00:01:35,170
A beginner needs guidance,
not a guessing contest.

29
00:01:37,750 --> 00:01:40,650
Now ask for a hint about the
exact step you cannot explain.

30
00:01:40,930 --> 00:01:43,850
Ask it to check your reasoning
before showing the whole solution.

31
00:01:46,250 --> 00:01:49,190
Ada needs to solve two times a
number, plus three, equals eleven.

32
00:01:49,330 --> 00:01:51,650
Her hint is simple: undo the addition first.

33
00:01:53,750 --> 00:01:54,370
Step two.

34
00:01:54,390 --> 00:01:55,270
Hide the answer.

35
00:01:55,330 --> 00:01:56,270
Close the screen.

36
00:01:56,590 --> 00:01:58,890
Take a fresh sheet, and explain
the method from memory.

37
00:02:02,250 --> 00:02:04,150
Ada subtracts three from both sides.

38
00:02:04,190 --> 00:02:06,090
Then she divides both sides by two.

39
00:02:06,170 --> 00:02:07,110
The number is four.

40
00:02:07,230 --> 00:02:08,430
Each step has a reason.

41
00:02:10,750 --> 00:02:11,450
Check the work.

42
00:02:11,530 --> 00:02:13,810
Put four back into the original equation.

43
00:02:13,890 --> 00:02:16,170
Two times four, plus three, is eleven.

44
00:02:16,310 --> 00:02:17,810
If something fails, correct it.

45
00:02:19,750 --> 00:02:20,410
Step three.

46
00:02:20,490 --> 00:02:21,510
Change the problem.

47
00:02:21,570 --> 00:02:22,670
New numbers are a start.

48
00:02:22,730 --> 00:02:25,470
A new situation checks whether you
can choose the method yourself.

49
00:02:29,250 --> 00:02:32,090
Two notebooks and a three dollar
delivery fee cost fifteen dollars.

50
00:02:32,470 --> 00:02:34,070
What does one notebook cost?

51
00:02:34,330 --> 00:02:36,510
Ada has to build the
equation before solving it.

52
00:02:40,250 --> 00:02:42,580
Come back later for another
fresh problem, without the tool.

53
00:02:42,590 --> 00:02:45,670
That checks retention separately
from what feels easy right now.

54
00:02:48,750 --> 00:02:50,140
Attempt with suitable guidance.

55
00:02:50,150 --> 00:02:51,710
Hide, explain, and check.

56
00:02:51,830 --> 00:02:53,630
Change the problem, then return later.

57
00:02:53,810 --> 00:02:55,890
Keep the next independent attempt in view.

58
00:02:57,750 --> 00:03:00,890
This is a practical check, not
a universally proven recipe.

59
00:03:01,110 --> 00:03:03,810
The right amount of help depends
on the learner and the task.

60
00:03:05,750 --> 00:03:07,190
A finished page is useful.

61
00:03:07,350 --> 00:03:09,570
A skill you can use again is something more.

62
00:03:09,650 --> 00:03:11,490
What can you do when the answer is gone?