Planning lessons is fundamental to ensuring the delivery of teaching and learning in schools. These guidelines aim to support teachers in organizing and managing their classes and lessons effectively and efficiently and ensure the achievement of learning outcomes.
Daily Lesson Log
(DLL) is a template teachers
use to log parts of their daily lessons. The DLL covers a day's or a week's worth of
lessons and contains the following features: Objectives, Content, Learning
Resources, Procedures, Remarks, and Reflection.
Preparing for lessons through the Daily Lesson Log (DLL) or Detailed Lesson Plan (DLP) provides teachers with an opportunity for reflection on what learners need to learn, how learners learn, and how best to facilitate the learning process. These guidelines also aim to empower teachers to carry out quality instruction that recognizes the diversity of learners inside the classroom, is committed to learners’ success, allows the use of varied instructional and formative assessment strategies including the use of information and communications technologies (ICTs), and enables the teacher to guide, mentor, and support learners in developing and assessing their learning across the curriculum.
Lesson: Changes of Materials from Solid to Liquid
Objective: To investigate how temperature affects the changes of materials from solid to liquid and to identify examples of materials that undergo this change.
Introduction:
In this lesson, students learn about the properties of materials and how they can change. One type of change that occurs is when a material changes from a solid state to a liquid state. This process is called melting. In this lesson, we will explore the changes in materials from solid to liquid and how temperature affects this change.
Body:
What is Melting? Melting is the process in which a solid material changes to a liquid when it is heated to its melting point. The melting point is the temperature at which a solid change to a liquid. For example, ice (a solid form of water) melts at 0 degrees Celsius.
How Temperature Affects Melting Temperature plays a critical role in the melting process. As the material is heated, it gains energy, and its molecules begin to vibrate faster. At the melting point, the molecules have enough energy to break the bonds that hold them together in a solid, and the material begins to change from a solid to a liquid. The higher the temperature, the more energy the molecules have, and the faster the material will melt.
Examples of Materials That Melt There are many materials that can melt, including metals, plastics, and wax. Here are some examples:
- Ice: When heated, ice melts into liquid water.
- Chocolate: Chocolate is a solid at room temperature, but it can melt when heated.
- Butter: Butter is another material that can melt when heated.
- Metal: Many metals have a high melting point, but they can melt when heated to a high enough temperature. For example, iron melts at 1538 degrees Celsius.
- Wax: Wax is a material that can melt when heated, which is why it is commonly used in candles.
- Observing Melting Students can observe melting by conducting a simple experiment. For example, they can place a small piece of ice in a container and heat it over a flame. As the ice melts, they can observe the change from a solid to a liquid. They can also compare the melting of different materials at different temperatures to see how temperature affects the melting process.
Melting is the process in which a solid material changes to a liquid when it is heated to its melting point. Temperature plays a critical role in the melting process, and the higher the temperature, the faster the material will melt. Many materials can melt, including metals, plastics, and wax. By conducting simple experiments and observing the melting process, students can investigate how temperature affects the changes of materials from solid to liquid. By understanding how materials can change from solid to liquid, students can develop a better understanding of the properties and behavior of materials.
