GTLE Subject Specialism Integrated Science case studies
GTLE Subject Specialism Integrated Science · Put your knowledge to work in context.
The GTLE Subject Specialism in Integrated Science is the subject-specialism paper taken by prospective science teachers in Ghana as part of the teacher licensure pathway administered by the National Teaching Council. It is intended for candidates who will teach Integrated Science at the basic school level and who therefore need both secure science content and the ability to teach it. The GTLE Subject Specialism Integrated Science case studies are 5 cases and about 4,340 words.
1The Dark Bulb in a Series Circuit
A teacher sets up a 12 V DC power pack, a switch and two bulbs, each marked '6 V, 0.5 A', connected in series with an ammeter. When the switch is closed, bulb B glows very brightly while bulb A stays completely dark.
843 words, about 4 min2A 24-Hour Oxygen Survey at the School Pond
Every August the biology club at a lakeside school runs a 24-hour oxygen survey of the school pond, which receives runoff from the canteen washings, and of a nearby stream that passes a small sewage treatment works. This year the club measured dissolved oxygen at eight sites.
853 words, about 4 min3Haemoglobin Screening and the Canteen Budget
A district health team screens 240 students aged 11–13 in six schools. Haemoglobin is measured with a finger-prick device: 91 students (38%) fall below the reference cut-off for their age.
848 words, about 4 min4Bubble Counting with Elodea
Four groups of students investigate how light intensity affects photosynthesis in Elodea. Each group places a sprig 10, 20, 30 and 40 cm from a 60 W incandescent lamp and counts bubbles emerging from the cut stem for one minute immediately after moving the lamp.
897 words, about 4 min5Planning a Particles Unit from Pre-Test Data
A Year 8 teacher has four 50-minute lessons to teach a unit on 'particles, states of matter and diffusion'. A 10-item pre-test of 32 students showed: 21 say particles get bigger when a substance is heated; 18 say air is 'not matter' because it is invisible and 'has no weight'; 14 say sugar dissolving in water is 'melting'; only 6 can describe diffusion as net movement from high to low concentration without 'wanting to spread out' language; 12 cannot draw gas particles as widely spaced.
899 words, about 4 min