Life Science Grade 11

Grade 11 Life Sciences Lesson PlansGRADE 11 SUBJECT Life Sciences WEEK 5 TOPIC Plant Groups: Gymnosperms Lesson 1LESSON SUMMARY FOR: DATE STARTED:LESSON OBJECTIVESDATE COMPLETED:Content: (CAPS p40)Biodiversity of plants: GymnospermsGrouping of gymnosperms according to the presence/absence of:• Vascular tissue (xylem and phloem).• True leaves and roots.• Seeds or spores.• Fruit.The learners will be able to:Discuss Gymnosperms in terms of: true leaves, true roots, vascular tissue, seeds/spores, fruit, and dependence on water for reproduction.TEACHER ACTIVITIES LEARNER ACTIVITIES TIMING RESOURCES NEEDED1.1 IntroductionGo through the homework on mosses and ferns. Explain that today’s lesson is on theplants that produce cones as part of their life cycle; the Gymnosperms. Hold upvarious cone specimens, as well as a branch of a Gymnosperm with some conespresent if possible.Learners provide answers tohomework questions.10 min1.2 Main Body (Lesson presentation)Try and collect 8 Gymnosperm branches (these may be stored for years to come).Divide the class into 8 groups and have them observe the various features of thebranch.Learners are to draw and label a diagram of the branch with the cones present.Very briefly outline the life cycle of a Gymnosperm with the focus being on the needfor water for fertilization and the presence of seeds (with no protective covering).From observations of aGymnosperm branchbearing a cone, learners areto draw and label a diagramof the specimen.15 min8 Gymnosperm branches preferably withcones present.Solutions for all Fig 2.7 P62Practical Workshop 1 Gr 11 Worksheet 41.3 ConclusionLearners to complete the Gymnosperm column in the table of Plant Groups .Learners to copy down avery brief life cycle of thegymnosperms. They are tonote that these plants bearcones, water is necessary forfertilization and that ‘naked’seeds are produced.15 minSolutions for all p62-63Study and Master P95-97Understanding Life Sciences P59-61Term 1 Page 34© Gauteng Department of Education (CAPS version)