Some custom part types

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Feedback

From users who are members of Demos :

Christian Lawson-Perfect

said

Ready to use

4 years, 5 months ago

From users who are not members of Demos :

Martina Gubser

said

Doesn't work

4 years, 5 months ago

History

○

Christian Lawson-Perfect 4 years, 5 months ago

Gave some feedback: Ready to use

○

Martina Gubser 4 years, 5 months ago

Gave some feedback: Doesn't work

○

Christian Lawson-Perfect 6 years, 10 months ago

Gave some feedback: Ready to use

○

Christian Lawson-Perfect commented 6 years, 10 months ago

"Give a value for a function" doesn't work

○

Christian Lawson-Perfect 6 years, 11 months ago

Published this.

○

Christian Lawson-Perfect 6 years, 11 months ago

Created this.

Name	Status	Author	Last Modified
Some custom part types	Ready to use	Christian Lawson-Perfect	06/02/2024 09:43
Johan's copy of Some custom part types	draft	Johan Maertens	24/05/2018 17:12

There is one other version that you do not have access to.

Question statement

This demo question contains some instances of custom part types.

Give any introductory information the student needs.

			Name	Type	Generated Value

a_a	integer	-2
a_b	integer	-5
a_c	integer	3
a_solvable	boolean	true

			Name	Type	Generated Value

			b_0	integer	3
			b_1	integer	2

			Name	Type	Generated Value

integer

			Name	Type	Generated Value

			d_base	integer	9
			d_rem	integer	4

			Name	Type	Generated Value

Automatically regenerate variables?

Name

Data type

Value

A random number between and (inclusive) with step size

Description

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

Can an exam override the value of this variable?

Generated value: `integer`

-2

This variable doesn't seem to be used anywhere.

Parts

Part a) List of numbers
Part b) Gap-fill
1. Gap Give a numerical input for an expression
  Add
Part c) Number entry modulo

List of numbers

Ask the student a question, and give any hints about how they should answer this part.

A sequence is defined by

$\begin{align} a_0 &= \var{b_0} \\ a_1 &= \var{b_1} \\ a_{n+2} &= a_{n+1} + a_n \end{align}$

Write the first five terms of the sequence.

Help with this part type

Marks

Show correct answer on reveal?

Show score feedback icon?

Correct answer

xxxxxxxxxx
 
[
  b_0,
  b_1,
  b_0+b_1,
  b_0+2*b_1,
  2*b_0+3*b_1
]

The list of numbers that the student should enter. The order does not matter.

Allow the student to enter fractions?

Display the correct answers as fractions?

Is the answer a set?

If ticked, the number of times an element occurs doesn't matter, only whether it's included at all.

Show the input hint?

Separator

The substring that should separate items in the student's list

Advice

a)

The discriminant of this quadratic is $\simplify[]{{a_b}^2 - 4*{a_a}*{a_c} = {a_b^2-4*a_a*a_c}}$ . This is not negative, so the quadratic has at least one real-valued solution. This is negative, so the quadratic has no real-valued solutions.

b)

The first five terms are:

$\begin{align} a_0 &= \var{b_0} \\ a_1 &= \var{b_1} \\ a_2 &= a_1+a_0 = \var{b_0+b_1} \\ a_3 &= a_2+a_1 = \var{b_0+2b_1} \\ a_4 &= a_3+a_2 = \var{2b_0+3b_1} \end{align}$

c)

$\simplify{cos(pi/2 + n*pi)} = 0$ for all integers $n$ , so we need $\simplify{x/{c}pi = pi/2+n*pi}$ .

One solution is $x = \var{c/2}$ .

d)

One solution is $\var{d_rem}$ .

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
List of numbers
List of numbers		Hasn't run yet
Gap-fill
Gap-fill		Hasn't run yet
Give a numerical input for an expression
Give a numerical input for an expression		Hasn't run yet
Number entry modulo
Number entry modulo		Hasn't run yet

This question is not used in any exams.

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Christian Lawson-Perfect 4 years, 5 months ago

Martina Gubser 4 years, 5 months ago

Christian Lawson-Perfect 6 years, 10 months ago

Christian Lawson-Perfect commented 6 years, 10 months ago

Christian Lawson-Perfect 6 years, 11 months ago

Christian Lawson-Perfect 6 years, 11 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

List of numbers

a)

b)

c)

d)

Loading...

Error

Some custom part types

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Christian Lawson-Perfect 4 years, 5 months ago

Martina Gubser 4 years, 5 months ago

Christian Lawson-Perfect 6 years, 10 months ago

Christian Lawson-Perfect commented 6 years, 10 months ago

Christian Lawson-Perfect 6 years, 11 months ago

Christian Lawson-Perfect 6 years, 11 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

List of numbers

a)

b)

c)

d)

Generated value: `integer`