Lesson Plan : Form 3
Teacher Name: | Adeelah Joolfoo |
Grade: | College/University |
Subject: | Math |
Topic: | Solids and Volumes |
Content: | Total Surface area of a cube |
Goals: | Understand the structure of a cube in order to come to the Total Surface area given the length of an edge. |
Objectives: | Construct the cubes in pair group Verify that a cube is made up of 6 identical faces Generate the formulae for Total Surface Area of a cube Work from the derived formulae |
Materials: | Bristol papers, Glue, Rulers, pencils, net of a cube (Already on board), white-board, coloured markers |
Introduction: | Gain attention: ask for attention, look around the class, praise those attending, comment to others |
Development: | Pose Question:"Tell me what you understand by a cube-give examples of cube-shaped objects." Accept range of answers, commenting on each. Explanation of drawn net on the board./How to draw and cut along. Teacher shows how to glue the net, applying glue on the flaps and constructing the cube. |
Practice: | Ask students to pair themselves and to start reproducing a net on their Bristol paper. The nets' lengths range from 5 cm to 15 cm and teacher specify the length for each pair group. |
Accommodations: | Questions to some students: "How many faces does your cube have?"(6) "Are all the faces same?" (Yes) "What is the shape of each face?" (Square) "What do you think will be the Total Surface Area of a cube of length 5cm, 6cm,...x cm?"(6^xsquare) |
Checking For Understanding: | Ask some group to tell about the TSA of their respective cube and to explain how to come to the formula for a cube of x cm. |
Closure: | Ask students to tidy up and to sit and to note down the formula of the TSA in their copybook and to write down the TSA of their respective cubes, showing all the workings neatly. |
Evaluation: | LO1: Most students managed to draw the nets with parallel lines. The rest managed with the help of the teacher. They all cut the net properly. LO2: They all could put on the glue and with some confidence, they constructed their cubes 'beautifully'. (Even some cubes were not perfect, the aim was to make them see the structure of a cube. LO3: They all verified it efficiently. LO4: This was guided discovery and the students easilyu understood the pattern through which to generate the TSA of a cube |
Teacher Reflections: | Self evalution: The specification of different lengths of cubes caused some confusion at the start, so more than 20 mins should have been allocated. The students managed to glue/ construct their cube in less than the 10-min allocated time. Otherwise the students seem to like their cube building, especially when they were told that the aim was not to construct a perfect cube, but to look at the structure and learn about the Total Surface Area.= area of all the faces. |
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