GTLE Biology case studies
GTLE Biology · Put your knowledge to work in context.
The Ghana Teacher Licensure Examination (GTLE) is the licensing examination administered by the National Teaching Council (NTC) of Ghana. The NTC is mandated by the Education Regulatory Bodies Act, 2020 (ACT 1023) to regulate the teaching profession in Ghana, and licensing teachers through the GTLE is one of its stated functions. The GTLE Biology case studies are 5 cases and about 3,499 words.
1Anomalous Potato Osmosis Data in SHS 2
Mr Adjei's SHS 2 biology class (42 students in six groups) has just completed a potato osmosis practical. Each group cut six cylinders from the same potato, blotted them, recorded initial mass on a top-pan balance reading to 0.01 g, and immersed one cylinder in each sucrose solution (0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 mol dm⁻³) for 30 minutes.
697 words, about 3 min2Teaching Meiosis with Clay Models in a Large Class
Mrs Boateng must teach meiosis to a class of 50 SHS 3 students in a 40-minute lesson. The school has one microscope and no prepared slides of meiosis; the projector works but the room can be darkened only partially.
716 words, about 4 min3Heart Dissection: Safety, Objection and Ethical Sourcing
Mr Mensah has planned a heart dissection for 38 SHS 3 students in a 60-minute double period. The laboratory has running water and an eyewash station but no fume cupboard; 12 pairs of scissors and 8 scalpels are available.
670 words, about 3 min4Chi-Square Calculation and the Meaning of p = 0.05
Mr Osei's SHS 2 class has analysed a maize genetics dataset: 1,100 offspring from a monohybrid cross, with 787 tall and 313 dwarf plants. The expected ratio is 3:1.
696 words, about 3 min5Biased Quadrat Sampling on the School Field
Miss Owusu takes her 30 SHS 2 students to the school field for a quadrat survey of a small herb. The field is 20 m by 10 m (200 m²).
720 words, about 4 min