A Detailed Lesson Plan in Agriculture and Fishery Arts Grade 11 I. Subject Matter Types of Weeds II. Objective At the end of the class, the students will be able to: a. Identify the different types of weeds. b. Appreciate the importance of weeds in relation to crop production and human life. c. Present a creative presentation about the different types of weeds. III. Methodology Discussion and Direct Instruction IV. Instructional Materials Weed Sample, Video Clip about weeding, Laptop, Projector and Speaker. V. Procedure Teacher’s Activity Student’s Activity A. Preparatory Activity Good Morning Class! Anyone who will lead the prayer? Okay John you may lead the prayer. Who is absent today? I guess you are excited about our topic for today but before we go on, let us have a short review first about what we have tackled yesterday. Good Morning Sir! Sir! “Let us pray…In the name of the father and the son and the holy spirit…Amen! No one is absent sir! (Student’s trying to recall) Can anybody give a brief recall of our lesson yesterday? (One student raises his hand) We discussed about crop protection sir. Very Good! We have discussed about the crop protection which is the science and practice of managing plant diseases, weeds and other pests that damage agricultural crops and forestry. (Students attentively listen.) B. Lesson Proper 1. Motivation Okay class I will show you a video clip and I want you to observe what the video is all about. Are you ready? Okay let’s start. (Students are excited to watch the video.) Yes Sir! So! What is your idea about the video clip being presented? Yes, Mr. (Student raises hand.) It’s all about weed control sir. Exactly! 2. Presentation This morning we will be tackling about the Types of weeds. Before we go on, what comes up on your mind if you heard about the word weeds? Yes, Mr. (Student actively raises their hand.) It grows anywhere. Yes, That’s true. 3. Discussion So, What is weeds? Yes, that’s correct. A plant that can be seen everywhere especially in upland and lowland area. What else? Yes it’s true. Okay class, weeds is a plant that interfere with human activity, a plant growing out of place, a plant growing in an area where it is not desired, plant that is useless, unwanted, undesired. Plants that contain medicinal property. (Students attentively listen.) So imagine class, this weeds grow anywhere. Does the weeds really important when it comes to crop production? Maybe Sir! In what particular way? No idea Sir! Okay let’s find out! When we talk about importance of weeds, it comes up with two effects: the Harmful effect of weeds and Some beneficial effects of weeds. (Students attentively listen.) So what are those harmful effects of weeds? (Student raises their hand.) Yes, Miss. Okay that’s correct. Act as a competition for space and nutrients that crops need to grow. What else? I would like to hear from others. Yes, Mister. (Other student raise their hand.) They act as alternate hosts for pests and pathogen. Absolutely you got the point. Anyway, here is the list of the harmful effects of weeds: They reduce the quantity and quality, They serve as alternate hosts for other pests/increased costs for insect and disease control, They increase the costs of production, They clog waterways and irrigation canals, Thy exude/release chemicals that are harmful to other plants, They reduce the value of the land. (Students listen carefully.) (Students listen Carefully.) So those are the harmful effects of weeds. Let’s move on to beneficial effects of weeds. (Students attentively listen.) What are those beneficial effects? Yes, Miss. Yes! That’s right. (Student raises their hand.) Alternative source of food, sir! What else? Yes, Mister. (Other student raises their hand.) Yes it’s true. It can be use as alternative medicine. As what you’ve mention earlier class, here’s the list of some beneficial effects of weeds: They reduce soil erosion in hilly areas, Some can be sources of food for man and animals, They prevent leaching of nutrients and return them into the soil, They could be sources of germplasms for crop improvement, Some can be sources of bio pesticides, They can be important source of useful drugs, What are those weeds that contain medicinal property? (Student listen carefully.) (Student raises their hand.) Can you give me some example of this weeds? Yes, Miss. Tawa-tawa , Sir! Absolutely! And last but not the list, They provide habitat for insect predators. (Students attentively listen.) So! Those are the importance of weeds in relation to crop production and human life. And what do you called about the removal of this unwanted plants from an area? (Student raises their hand.) Yes, Mister. Weeding, Sir! Yes, that’s correct. Weeding is an important control method practiced in many crops. The removal of weeds is useful because these unwanted plants compete with the crops for space, water and nutrients. (Student listen carefully.) And the most important thing is we also need to familiarize and identify thoseweeds. Why we need to identify those weeds? (Student raises their hand.) Yes, Miss. We need to identify those weeds because it will give some possible effect especially in crop production. Okay! Give me some example of weeds? Carabao Grass, Sir! What else? Yes, Mister. Based on gross morphology, there are three types of weeds. What are they? (Other student raises their hand.) Cogon, Sir Any idea? No Idea sir. This types of weeds are the grasses, sedges and broadleaves. Okay, let’s start with the Grasses. Grasses is a member of family gramineae, stem which are rounded have distinct nodes and internodes, leaves (composed of the leaf blade) arise alternately in two rows from the nodes, thin and narrow and have a parallel venation, roots are fibrous, example are Rottboellia cochinchinensis (Itchgrass), Imperata cylindrica (Cogon grass), Eleusine indica (Indian goose grass) , Echinochloe crusgalli (Barnyard grass). (Students attentively listen.) What else? (Student raises their hand.) Yes, Miss. Bermuda, sir! You’re right! So, those are the example of weeds. Next is the sedges. Sedges is a member of family Cyperaceae; closely resembles grasses; stems are thin and angular/triangular; leaves are in thin narrow and have parallel venation, with leaf sheaths that are fused to form a tube around the stem; roots are fibrous; perennial sedges have underground tubers e.g. Cyperus rotundus (Purple nutsedge); examples are Cyperus iria (Rice Flatsedge), Cyperus kyllingia , Fimbristylis littoralis ( Lesser fimbristylis), Scirpus maritimus (Saltmarsh bulrush), etc. (Students listen carefully.) What else? Can you give some examples on sedges? Yes, Miss. Okay let’s move on with the last one which is the broadleaves. Broadleaves is a plants not belonging to neither grasses not sedges; leaves are fully expanded and broad; some are monocots but mostly are dicots and have netted leaf veins; examples are Ageratum conyzoides (Billy Goat (Student raises their hand.) weed) , Monochoria vaginalis (Pickerel weed), Ipomoea aquatic (Students attentively listen.) (Swamp morning-glory), Ipomoea triloba (Three-lobe morning glory), etc. What else? Give me some example of broadleaves. Yes, Miss. (Student raises their hand.) Kanding-kanding, sir! Those are the types of weeds that we need to familiarize and identify. In your own idea, why we need to familiarize those weeds? Yes, Mister. (Student raises their hand.) It is important to learn the weeds because it plays vital role in crop production and to human life as well. Yes, exactly! 4. Generalization We are almost done with the lesson for today, but before proceeding to our next activity let us wrap up first what you have learned. Knowing all the types of weeds and its importance, how significant do you think is the weeds in crop production and in human life? (Student raises their hand.) Yes, Miss. Despite the negative impacts of weeds, some plants usually thought of as weeds may actually provide some benefits such as soil stabilization, habitat and feed for wildlife, human consumption and provide employment opportunities. You nailed it to the point. What else? Can I hear from the others? (Other student raises their hand.) Yes, Mister. Weeds have certain effects in agriculture, which are mostly in the form of different harmful results but somehow there are also some beneficial effects. Absolutely! In addition to that, weeds have a controversial nature. But to the agriculturist, they are plants that need to be controlled, in an economical and practical way, in order to produce food, feed and fiber for humans and animals. In this context, the negative impacts of weeds indirectly affect all living beings. 5. Application The class will be divided into 4 groups. Each group will Create a compilation of the different types of weeds. Give at least five sample of weeds in each type and indicate its common name. Be creative because you will present the output to other group. Evaluation Direction: Identify/Enumerate the following statements being given. Write your answers in a ¼ sheet of paper. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. VI. What do you called about a plant that is unwanted? Give at least three harmful effects of weeds. Give at least three beneficial effects of weeds. What are the three types of weeds? Assignment Make a Research about all the Methods of Weed Control and Write it on a one whole sheet of paper.
