Ii iii. the rule for the successive subtracting a large negative signs in integer from a 6 –14– small one. 1 multiply to make +14 = 16 Thought that the Did not know the = 16 LCM of the two meaning of LCM = 19 fractions is obtained and how to find it. Used 1 as LCM = instead of 3 by multiplying their = denominators. = 26.6 Did not know how = to change a mixed = = number into Used 9 as LCM instead of 3 fractional form. Thought that, a mixed number is changed into fractional form by subtracting the For each numerator from the number, the whole number. numerator was subtracted from the whole number. Respondents created a positive sign in the expression 6 as in the case of (– 14) –14 – – whose expansion form is; × Respondents therefore, were not able to –1 –4. differentiate negative sign’ from minus sign’ in the expression 6. Also, ‘a ‘a –14 –
Ii iii. the rule for subtracting a large integer from a small one. the successive negative signs in –14– 6 1 multiply to make +14 26.6 = 16 = 16 = 19 = = = = = = Used 1 as LCM instead of 3 Used 9 as LCM instead of 3 For each number, the numerator was subtracted from the whole number. Did not know the meaning of LCM and how to find it. Did not know how to change a mixed number into fractional form. Thought that the LCM of the two fractions is obtained by multiplying their denominators. Thought that, a mixed number is changed into fractional form by subtracting the numerator from the whole number. Respondents created a positive sign in the expression –14 – 6 as in the case of – (– 14) whose expansion form is; –1 × –4. Respondents therefore, were not able to differentiate ‘a negative sign’ from ‘a minus sign’ in the expression –14 – 6. Also,
Victor_Mwesiga_%2D_PhD.docx