Lead developer of Numbas.

I'm happy to answer any questions - email me.

## Christian's activity

#### Christian Lawson-Perfect on Using compound units - room hire price per hour and per minute3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Calculating a simple rate of pay3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on The probability of an event not happening - five friends play mini golf3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Create an algebraic expression from a word problem, simplify, and evaluate3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Calculate a student discount3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Calculating expected values using theoretical probability and experimental probability3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Using compound units: price/weight of sweets3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'pname' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Calculate the original price before a decrease3 months, 1 week ago

Saved a checkpoint:

Renamed 'name' to 'name1' to avoid a conflict with the marking algorithm.

#### Christian Lawson-Perfect on Custom marking - answer is a set3 months, 1 week ago

Saved a checkpoint:

Fixed the script to make sure the rational values are converted to numbers. This should be rewritten to use a JME marking algorithm though.

#### Christian Lawson-Perfect on Numerical reasoning - tax3 months, 1 week ago

Saved a checkpoint:

Renamed the variable 'name' to 'names' to avoid a conflict with the marking algorithm.