Basic 8 Science Term 1 Week 6 Lesson Plan

Concrete-resource task: Set out these resources for each group: Mammalian jaw model; Printed tooth diagram; Hand mirror. Learners observe and safely handle the specimens or apparatus, using them in the investigation or model below. Brainstorm learners to explain the dentition. Dentition refers to the shape, number and the arrangement of in the teeth mouth of an animal Have learners understand that the type of dentition in an animal is mainly suited [adapted] to the animal’s mode of feeding. Guide learners to discuss the types of dentition in mammals. Homodont dentition and Heterodont dentition Learners talk about the milk [deciduous teeth] and the permanent [wisdom] teeth.

Use peer discussion and effective questioning to find out from learners what they have learnt during the lesson.

Ask learners to mention some common insects in their home and why they dislike them.

Concrete-resource task: Set out these resources for each group: Mammalian jaw model; Printed tooth diagram; Hand mirror. Learners observe and safely handle the specimens or apparatus, using them in the investigation or model below. Guide learners to draw and label parts of a mammalian tooth. In groups, learners discuss the three parts of the mammalian tooth. • The crown is the part of the tooth which is crown found above the gum • The is the part of the tooth which is root embedded in the jaw bone • The is the region [part] of the tooth neck where the crown meets the root Guide learners to explain the functions of each part of the mammalian tooth of humans. • The enamel is the outermost layer of the enamel tooth which forms the biting surface of the crown. It is the most hardest material in the human body. • The dentine is the layer of the tooth which is found beneath the enamel. It forms a greater part of the tooth. • the pulp cavity is a region within the tooth where the blood vessels are found. • The gum is the flesh that holds the crown and the root together. • The jaw bone contains the sockets that serve as a basement for the tooth. • The cement is the adhesive substance that holds the tooth firmly in the jawbone and also to the periodontal fibers and membranes

Take feedback from learners and summarize the lesson.

Share learning indicators and introduce the lesson.

Concrete-resource task: Set out these resources for each group: Mammalian jaw model; Printed tooth diagram; Hand mirror. Learners observe and safely handle the specimens or apparatus, using them in the investigation or model below. Assessment Draw a well labelled mammalian tooth. State and explain the types of dentition with examples. What is dentition? Discuss the functions of the different types of human teeth. Types of teeth • Incisors- The incisors are the front row teeth and are used for cutting food. • Canines- The canines are conical edged in shape and are used for shearing flesh from bones • Molars and Premolars- they have broad surfaces with some tiny projections on them called cups. They are used for grinding food. Engage learners to draw the different types of teeth. Assessment State one function of each of the following 1) Incisors 2) Canines 3) Molars 4) Premolars

Use peer discussion and effective questioning to find out from learners what they have learnt during the lesson. Take feedback from learners and summarize the lesson.