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Episodes
- Classic Mistake Number 41
(1mb)
Sun, 8 Jul 2007 15:41:00 +0000
Classic Mistake Number 41 - Walk before you Fall. Problems associated with trying to do too much all at once. - Classic Mistake Number 40 (1mb)
Sun, 8 Jul 2007 15:40:00 +0000
Classic Mistake Number 40 - Cancelled out. Problems associated with multiplying a fraction by a whole number. - Classic Mistake Number 39 (2mb)
Sun, 8 Jul 2007 15:39:00 +0000
Classic Mistake Number 39 - An Uncalculated Move. Problems associated with not having all the equipment necessary for a maths lesson. - Classic Mistake Number 38 (1mb)
Tue, 29 May 2007 15:38:00 +0000
Classic Mistake Number 38 - A = pi not squared. Problems associated with using the formula for the area of a circle. - Classic Mistake Number 37 (1mb)
Tue, 29 May 2007 15:37:00 +0000
Classic Mistake Number 37 - Working Class. Problems associated with only writing down the answer to a question, with no workings shown. - Classic Mistake Number 36 (1mb)
Tue, 29 May 2007 15:36:00 +0000
Classic Mistake Number 36 - Cancel Crazy. Problems associated with simplifying an algebraic fraction. - Classic Mistake Number 35 (1mb)
Tue, 29 May 2007 15:35:00 +0000
Classic Mistake Number 35 - Counting Boxes. Problems associated with working out the perimeter of a shape that's been drawn on a grid of dots. - Classic Mistake Number 34 (1mb)
Tue, 29 May 2007 15:34:00 +0000
Classic Mistake Number 34 - Four Lines. Problems associated with reading off the length of a line when it is on a grid of dots. - Classic Mistake Number 33 (1mb)
Tue, 29 May 2007 15:33:00 +0000
Classic Mistake Number 33 - Scale it Up and Up. Problems associated with area scale factors of enlargment. - Classic Mistake Number 32 (1mb)
Tue, 29 May 2007 15:32:00 +0000
Classic Mistake Number 32 - Quick Draw. Problems associated with not drawing a helpful diagram. - Classic Mistake Number 31 (1mb)
Tue, 29 May 2007 15:31:00 +0000
Classic Mistake Number 31 - First Come, Last Served. Problems associated with expanding and simplifying expressions that involve subtractions and brackets. - Classic Mistake Number 30 (1mb)
Tue, 29 May 2007 15:30:00 +0000
Classic Mistake Number 30 - Winner Takes All. Problems associated with negative signs outside a set of brackets. - Classic Mistake Number 29 (1mb)
Wed, 11 Apr 2007 15:40:00 +0000
Classic Mistake Number 29 - Root 66. Problems associated with splitting a square root over a sum. - Classic Mistake Number 28 (1mb)
Wed, 11 Apr 2007 15:35:00 +0000
Classic Mistake Number 28 - A Point Worth Noting. Problems associated with multiplying 0.5 by 0.5 and getting 2.5 - Classic Mistake Number 27 (1mb)
Wed, 11 Apr 2007 15:30:00 +0000
Classic Mistake Number 27 - A Square Meal. Problems associated with multiplying two single letters together. - Classic Mistake Number 26 (1mb)
Tue, 3 Apr 2007 15:25:00 +0000
Classic Mistake Number 26 - Too Easy By Half. Problems associated with re-writing algebraic fractions as expressions with negative powers. - Classic Mistake Number 25 (1mb)
Tue, 3 Apr 2007 15:20:00 +0000
Classic Mistake Number 25 - Done Sum Times. Problems associated with trying to simplify algebraic expressions that shouldn't be simplified! - Classic Mistake Number 24 (1mb)
Tue, 3 Apr 2007 15:15:00 +0000
Classic Mistake Number 24 - Powerless. Problems associated with raising algebraic expressions that are in backets to a power that's outside the brackets. - Classic Mistake Number 23 (1mb)
Tue, 3 Apr 2007 15:10:00 +0000
Classic Mistake Number 23 - Sign Language. Problems associated with squaring a negative number and how you write it down on the page. - Classic Mistake Number 22 (1mb)
Tue, 3 Apr 2007 15:05:00 +0000
Classic Mistake Number 22 - 1m=100cm. Problems associated with converting from square centimetres to square metres. - Classic Mistake Number 21 (1mb)
Tue, 3 Apr 2007 15:00:00 +0000
Classic Mistake Number 21 - Dire Straights. Problems associated with plotting points from a data table onto a set of axes. - Classic Mistake Number 20 (1mb)
Sun, 4 Mar 2007 15:30:00 +0000
Classic Mistake Number 20 - Mind the Gap. Problems associated with drawing a well labelled set of axes. - Classic Mistake Number 19 (1mb)
Sun, 4 Mar 2007 15:20:00 +0000
Classic Mistake Number 19 - Take it as it Comes. Problems to do with orders of operations. - Classic Mistake Number 18 (2mb)
Sun, 4 Mar 2007 15:10:00 +0000
Classic Mistake Number 18 - Highest Common Farce. Problems associated adding two fractions. - Classic Mistake Number 17 (1mb)
Sun, 4 Mar 2007 15:00:00 +0000
Classic Mistake Number 17 - Partial Expansion. Problems associated with multiplying out a bracket containing algebraic terms. - Classic Mistake Number 16 (1mb)
Sun, 4 Feb 2007 15:40:00 +0000
Classic Mistake Number 16 - 2b or not 2b. Problems associated with squaring a bracket containing algebraic terms. - Classic Mistake Number 15 (1mb)
Sun, 4 Feb 2007 15:30:00 +0000
Classic Mistake Number 15 - Composite Crime. The definition of a prime number and why 1 is not a prime number. Also a handy way of remembering the first three prime numbers. - Classic Mistake Number 14 (1mb)
Sun, 4 Feb 2007 15:20:00 +0000
Classic Mistake Number 14 - Collection Chaos. The issues of simplying such algebraic expressions as 5a+7-2a. - Classic Mistake Number 13 (1mb)
Sun, 4 Feb 2007 15:10:00 +0000
Classic Mistake Number 13 - Nothing Comes of Nothing. This issue of multiplying something by zero. - Classic Mistake Number 12 (0mb)
Sun, 4 Feb 2007 15:00:00 +0000
Classic Mistake Number 12 - Double or Quits. Look 1 x 1 is not 2. It's that simple. - Classic Mistake Number 11 (1mb)
Sun, 14 Jan 2007 15:00:00 +0000
Classic Mistake Number 11 - Check Mate. An insight into the mind of a teacher that's watching a student sit at the end of an exam, doing nothing. - Classic Mistake Number 10 (1mb)
Tue, 9 Jan 2007 15:20:00 +0000
Classic Mistake Number 10 - 2's a Company, 3's a Crowd. An overview of what it means to raise something to a power 2 or to a power 3 - it's not the same as multiplying by 2, or multiplying by 3. - Classic Mistake Number 9 (1mb)
Tue, 9 Jan 2007 15:10:00 +0000
Classic Mistake Number 9 : - x - = +. The issues and rules surrounding working out negative numbers to certain powers. - Classic Mistake Number 8 (1mb)
Tue, 9 Jan 2007 15:00:00 +0000
Classic Mistake Number 8 - Overtime. Further problems arising from using decimals and time. - Classic Mistake Number 7 (2mb)
Wed, 29 Nov 2006 15:00:00 +0000
Classic Mistake Number 7 - Pythagoras' Trauma. An overview of the need to pay attention to whether you are given the hypotenuse in a right angled triangle, or if you have to work it out. - Classic Mistake Number 6 (1mb)
Tue, 28 Nov 2006 15:00:00 +0000
Classic Mistake Number 6 - Substandard Form. A reminder of the requirements of writing a number in Standard Form, or Scientific Notation. - Classic Mistake Number 5 (2mb)
Thu, 16 Nov 2006 15:00:00 +0000
Classic Mistake Number 5 - Recurring Rounding. The issues with writing a recurring fraction as a decimal. - Classic Mistake Number 4 (1mb)
Wed, 15 Nov 2006 15:00:00 +0000
Classic Mistake Number 4 - Discriminating Discriminant. One of the many problems encountered when using the quadratic formula. - Classic Mistake Number 3 (1mb)
Fri, 20 Oct 2006 15:20:00 +0000
Classic Mistake Number 3 - Unequal Equals. Writing a multi-stage calculation on one single line of the page leads to confusion. - Classic Mistake Number 2 (1mb)
Fri, 20 Oct 2006 15:10:00 +0000
Classic Mistake Number 2 - A mile off. Converting between decimal time and actual time. And why is it called "A mile off"? Well, consider the difference between 3.1hrs and 3h 10m in the context of athletics.... - Classic Mistake Number 1 (1mb)
Fri, 20 Oct 2006 15:00:00 +0000
Classic Mistake Number 1 - Standard Flop. We look at how students often incorrectly write a number in standard form.
