
9 December
Read more: 9 December👉🏼How long is y in the diagram below? 👈🏼Estimate the value of 👆🏼A full water tank springs a leak, at the base, and loses 8% of its contents each minute. What percentage of water is lost over 5 minutes? 👇🏼(ax+1)(x3)(x+b) = 2×3 – 3×2 – 8x – 3. Find a and b. 🖐🏼Ashok buys a…

9708A. 10 November
Read more: 9708A. 10 November1. What are the correct formulae for calculating average cost (AC) and average revenue (AR)? AC AR A B P x Q C D Key: MC = Marginal Cost, MR = Marginal Revenue, P = Price, Q = Quantity, TC = Total Cost, TR = Total Revenue 2. What is always present in monopolistic competition…

iGCSE Number. Calculating with Estimates
Read more: iGCSE Number. Calculating with EstimatesThe approximations used in estimating numbers are compounded when calculations are done with those numbers. For instance, if we know that a = 5.2 to one decimal place and b = 1.3 to one decimal place, then the range for the sum c=a+b can be from 5.15+1.25 through to 5.25+1.35, i.e. 6.4 ⩽ c <…

#ED00H0 In defence of neuroscience
Read more: #ED00H0 In defence of neuroscienceLet me start by making clear that I am not a neuroscientist. Nor a psychologist. I am a mathematics teacher whose formal studies of psychology, excluding a short paper on motivation during my PGCE year, don’t extend beyond Alevel. Nevertheless as a teacher, I maintain a keen interest in the findings from psychology that…

Why ‘driven’, ‘ambitious’ and ‘selfmotivated’ are now chauvinistic words
Read more: Why ‘driven’, ‘ambitious’ and ‘selfmotivated’ are now chauvinistic wordsWhy ‘driven’, ‘ambitious’ and ‘selfmotivated’ are now chauvinistic words Besides the famous ‘electric shock’ experiments conducted by Stanley Milgram in the 1970s, were the equally controversial findings on conformity by Solomon Asch. In a nutshell, these involved a group of participants judging the length of a straight line projected on a screen. One of the…