Try to answer the following questions here:

• What is this question used for?
• What does this question assess?
• What does the student have to do?
• How is the question randomised?
• Are there any implementation details that editors should be aware of?

### History

#### Checkpoint description

Describe what's changed since the last checkpoint.

#### Paul Hancock2 years, 6 months ago

Created this as a copy of Mystery derivatives.
Create an equilateral triangle in GeoGebra Doesn't work Christian Lawson-Perfect 21/05/2020 14:39
Create an equilateral triangle in GeoGebra draft Marlon Arcila 02/08/2016 13:36
Oracle function estimation Needs to be tested Philip Walker 25/01/2017 14:26
Mystery derivatives Ready to use Philip Walker 20/03/2017 14:14
Oracle function root estimation Ready to use Philip Walker 25/01/2017 14:24
Numbas demo: Create an equilateral triangle in GeoGebra Needs to be tested Christian Lawson-Perfect 25/08/2020 14:57
Nuala's copy of Numbas demo: Create an equilateral triangle in GeoGebra draft Nuala Curley 15/12/2016 14:30
Christian's copy of Mystery derivatives draft Christian Lawson-Perfect 14/02/2017 15:02
Sid's copy of Oracle function estimation draft Sid Fox 12/03/2017 14:19
Hollie's copy of Create an equilateral triangle in GeoGebra draft Hollie Tarr 27/04/2017 17:35
Kelsie's copy of Hollie's copy of Create an equilateral triangle in GeoGebra draft Kelsie Nguyen 23/06/2017 19:38
Paul's copy of Mystery derivatives draft Paul Hancock 01/07/2018 22:50
Use information from a GeoGebra applet in marking draft Christian Lawson-Perfect 10/07/2018 08:57
Arnd's copy of: Create an equilateral triangle in GeoGebra draft Arnd Ludwig 31/07/2018 13:15
Arnd's copy of: Create an equilateral triangle in GeoGebra draft Arnd Ludwig 31/07/2018 15:24
Luis's copy of Oracle function estimation draft Luis Hernandez 27/12/2018 14:27
Oracle function estimation draft Luis Hernandez 27/12/2018 17:51
Oracle function estimation draft Luis Hernandez 27/12/2018 18:00
Test Geogebra two way communications Ready to use William Haynes 17/08/2020 14:38
Numbas demo: Create an equilateral triangle in GeoGebra draft Xiaodan Leng 10/07/2019 23:59
Mystery derivatives draft Xiaodan Leng 11/07/2019 05:15
Ann's copy of Create an equilateral triangle in GeoGebra draft Ann Smith 22/08/2019 12:23
Leonardo's copy of Ann's copy of Create an equilateral triangle in GeoGebra draft Leonardo Juliano 03/09/2019 16:25
Faye's copy of Create an equilateral triangle in GeoGebra draft Faye Caluw 21/10/2019 09:10
VM two way communications draft William Haynes 17/08/2020 14:39
ibrahim's copy of Numbas demo: Create an equilateral triangle in GeoGebra draft ibrahim khatib 21/12/2019 11:19
William's copy of Create an equilateral triangle in GeoGebra draft William Lee 15/02/2020 10:19
Guillermo Bernardo's copy of Create an equilateral triangle in GeoGebra draft Guillermo Bernardo DURÁN GONZÁLEZ 18/02/2020 23:52
Fajar's copy of Create an equilateral triangle in GeoGebra draft Fajar Yuliawan 10/04/2020 17:06
Jan's copy of Oracle function root estimation (impressive work this one! JHa) draft Jan Hansen 03/05/2020 10:03
Metodo di bisezione per la ricerca delle radici draft Irene Paniccia 24/05/2020 14:27
Create an equilateral triangle in GeoGebra - Prova modifica draft Irene Paniccia 24/05/2020 01:00
Use information from a GeoGebra applet in marking (copy of Christian's) draft Benoit Pijcke 30/05/2020 07:01
Jim's copy of Use information from a GeoGebra applet in marking draft Jim Pettigrew 13/12/2020 22:12
Jim's copy of Use information from a GeoGebra applet in marking 2 draft Jim Pettigrew 13/12/2020 22:12

Give any introductory information the student needs.

No variables have been defined in this question.

#### Warning

• When applying the function,
##### Suggestions
• Change the signature of parameter from to .

This variable is an HTML node. HTML nodes can not be relied upon to work correctly when resuming a session - for example, attached event callbacks will be lost, and mathematical notation will likely also break.

If this causes problems, try to create HTML nodes where you use them in content areas, instead of storing them in variables.

Describe what this variable represents, and list any assumptions made about its value.

← Depends on:
→ Used by:

This variable doesn't seem to be used anywhere.

Name Type Generated Value

#### Error in variable testing condition

There's an error in the condition you specified in the Variable testing tab. Variable values can't be generated until it's fixed.

Error:

for seconds

Running for ...

Name Limit

### Penalties

Name Limit

No parts have been defined in this question.

Select a part to edit.

The correct answer is an equation. Use the accuracy tab to generate variable values satisfying this equation so it can be marked accurately.

#### Checking accuracy

Define the range of points over which the student's answer will be compared with the correct answer, and the method used to compare them.

#### Variable value generators

Give expressions which produce values for each of the variables in the expected answer. Leave blank to pick a random value from the range defined above, following the inferred type of the variable.

#### String restrictions

Both choices and answers must be defined for this part.

Help with this part type

#### Test that the marking algorithm works

Check that the marking algorithm works with different sets of variables and student answers using the interface below.

Create unit tests to save expected results and to document how the algorithm should work.

There's an error which means the marking algorithm can't run:

#### Question variables

These variables are available within the marking algorithm.

Name Value

#### Marking parameters

These values are available as extra variables in the marking algorithm.

Name Value

#### Part settings

These values are available as entries in the settings variable.

Name Value

Alternative used:

Note
Value Feedback

Click on a note's name to show or hide it. Only shown notes will be included when you create a unit test.

#### Unit tests

No unit tests have been defined. Enter an answer above, select one or more notes, and click the "Create a unit test" button.

The following tests check that the question is behaving as desired.

### This test has not been run yet This test produces the expected output This test does not produce the expected output

This test is not currently producing the expected result. Fix the marking algorithm to produce the expected results detailed below or, if this test is out of date, update the test to accept the current values.

One or more notes in this test are no longer defined. If these notes are no longer needed, you should delete this test.

Name Value

 This note produces the expected output

This test has not yet been run.

When you need to change the way this part works beyond the available options, you can write JavaScript code to be executed at the times described below.

Run this script the built-in script.

This script runs after the built-in script.

To account for errors made by the student in earlier calculations, replace question variables with answers to earlier parts.

In order to create a variable replacement, you must define at least one variable and one other part.

The variable replacements you've chosen will cause the following variables to be regenerated each time the student submits an answer to this part:

These variables have some random elements, which means they're not guaranteed to have the same value each time the student submits an answer. You should define new variables to store the random elements, so that they remain the same each time this part is marked.

This part can't be reached by the student.

Add a "next part" reference to this part from another part.

None of the parts which can lead to this part are reachable either.

### Next part options

Define the list of parts that the student can visit after this one.

• #### Variable replacements

No variable replacements have been defined for this next part option.
Variable Value

### Previous parts

This part can follow on from:

This part doesn't follow on from any others.

### Parts

#### Steps

Give a worked solution to the whole question.

Select extensions to use in this question.