Linear Inequality : direct input (Bill)

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Bill Foster

History

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Lois Rollings 8 years, 8 months ago

Published this.

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Bill Foster 10 years, 7 months ago

Created this as a copy of Linear Inequality multichoice.

Name	Status	Author	Last Modified
Linear Inequality : direct input (Bill)	draft	Bill Foster	29/07/2016 13:19
Lois's copy of Linear Inequality : direct input (Bill)	draft	Lois Rollings	29/07/2016 13:25
Linear Inequality : direct input	draft	Lois Rollings	25/08/2016 11:03
Ioannis's copy of Linear Inequality : direct input (Bill)	draft	Ioannis Lignos	29/10/2017 00:43
Ioannis's copy of Linear Inequality : direct input (Bill)	Needs to be tested	Ioannis Lignos	28/10/2018 19:25
Ioannis's copy of Linear Inequality : direct input	draft	Ioannis Lignos	09/10/2018 14:59

There are 5 other versions that do you not have access to.

Question statement

Find the range of values of $t$ which satisfy the following inequality.

Give any introductory information the student needs.

			Name	Type	Generated Value

inequal	string	$<$
ansinequal	string	>
sum	integer	29
q	integer	19
p	integer	10
diff	integer	-9

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random ('$>$', '$<$')

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Description

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

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Generated value: `string`

$<$

This variable doesn't seem to be used anywhere.

Parts

Gap-fill
1. Gap Gap 0. Match text pattern
  Add
2. Gap Gap 1. Number entry
  Add

Gap-fill

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

$\var{p}-t \ \var{inequal} \ \var{q}$

Input the appropriate inequality sign, either < or >, in the first box and the correct range in the second.

$t\;\;$ Gap 0.$\;\;$ Gap 1.

Advice

For $\var{p}-t \ \var{inequal} \ \var{q}$, the easiest way to start is to add $t$ to both sides of the inequality.

This will give you $ \var{p} \ \var{inequal} \ t \ + \ \var{q} $.

Now subtracting $ \var{q} $ from both sides gives $ t \ \var{ansinequal} \var{diff} $

These online resources might help you revise this topic.

http://www.mathsisfun.com/algebra/inequality-solving.html

http://www.sosmath.com/algebra/inequalities/ineq01/ineq01.html

Give a worked solution to the whole question.

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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History

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Checkpoint description

Lois Rollings 8 years, 8 months ago

Bill Foster 10 years, 7 months ago

Error in variable testing condition

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Generated value: `string`

Parts

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Linear Inequality : direct input (Bill)

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Lois Rollings 8 years, 8 months ago

Bill Foster 10 years, 7 months ago

Error in variable testing condition

Error

Warning

Generated value: string

Parts

Gap-fill

Generated value: `string`