Unit Plan Template s32

Activity Plan Template

Activity Overview
Activity Title
Balancing the imbalanced
Activity Summary
In this activity, students will understand how a vegetable seller equates the mass of vegetable with a pre calibrated weights. Difference between mass and weight.
Subject Area
Science & Math
Class Level
Class - IX
Approximate Time Needed
Example: 45 – minute class period
Learning Objectives
· What is the impulse on an object?
· How does the time over which an object changes speed affect the impact force on the object?
Assessment Plan
Assessment Timeline
Before Activity work begins / During the Activity / After the Activity is completed
· Questioning
· Discussion / · Brainstorming / · Experiment Checklist
· Quick Poll
· Screen Capture
· Live presenter / Discussion / · Questioning / · Discussion
Assessment Summary
The assessments will include a mix of students’ self-assessment and teacher’s feedback.
Teacher can assess the students’ understanding of the concept by Questioning, discussing and observing the student throughout the activity.
The questioning & brainstorming before the beginning of the activity will give teacher an idea about students' prior knowledge about the topic.
Discussion is used throughout the activity for the assessment.
The Quick poll & screen capture is used to monitor students' progress during the entire activity.
The summary sheet helps the students to summarize their learning of the activity.
TI Document References
· Guide students to address any trouble shooting while using the Hand Held
· Use the various tools of the Hand Held effectively
Unit Details
Prerequisite Skills
· Conceptual Understanding: Knowledge about :
· Explore how the impulse on an object is affected by force, time, and velocity.
· Calculate the impact force on an object.
Technical Understanding: Knowledge of using TI Hand Held Device.
Instructional Procedures
· Prepare the guidelines for explaining the expectations while performing the activity.
· Prepare guidelines to assist students while working on the experiments, TI Hand Held Device.
· Arrange for science lab and all equipments for experiment.
Start up activity: I. Mass & Weight: Teacher will elaborate on mass. You are a body of matter. The earth is also a body of matter. Gravity pulls you down to the earth and allows you to walk around instead of floating.
Teacher will pose a question “is mass equal to weight?” Wait till all students have answered.
Explain that many people use the words mass and weight as if they mean the same thing. Well, this isn’t true. Justify your statement mass is the total amount of space your body takes up. Your mass is not going to physically change no matter where in the Universe you go. Your body will still be made of the same things. You will still be the same shape you are on earth. The only time your mass will change is when you grow bigger in both height and weight. When your weight or height increase or decrease your body mass changes shape.
Now explain weight: it deals primarily with gravity. The amount you weigh is based on the force of gravity as it pulls you down towards the earth. The stronger the pull of gravity is on a planet the more you will weigh.
Have students understand it better by giving example of moon. The moon has less amounts of gravity then the earth does so if you were to go on the moon you would bounce and float rather than walk. You would also weight a lot less because the lack of gravity would make your body weight change.
Ask students can they tell what is being measured by a two – pan balance and a spring balance. To make it simpler ask which one measures mass and which measures weight? Have students answered the question now discuss, the two-pan balance and the spring balance both measure weight, both devices rely on gravity, and therefore both measure weight
Elaborate that only the way they do so differs. The two-pan balance compares the weight of the object being examined to that of a set of standard weights in the other pan. The spring balance, on the other hand, compares that weight to the pull of a calibrated spring.
Thus on the Moon, where gravity is only 1/6 of its value on Earth, the spring balance will record a smaller weight, but the two-pan balance will not. That is because on the Moon, the pull of the spring is changed, but the balancing weights in the other pan also weigh only 1/6 of what they weigh on Earth. In both cases, however, what is measured is weight, not mass, because gravity is involved.
Distribute the TI handhelds to the students and have them open the sets and log into their id. Ask them to open activity “balance and mass” in physics folder of “my documents”. Open page 1.2 and move on to next page. Guide them to use slider to increase water level in the empty jug and observe the changes. Have them explore all possible combinations. Catch the work of students on live presenter and watch what they are doing. Discuss their findings with the class. Move further and have students answer the questions. Discuss their answers in the class. Move on to page 1.8 explain that if the jug on the right is full it will be at lowest position if we empty the left jug it will not make any difference to the system while if we fill it more the right jug will start lifting up and when the jug on the left side is full then a balance will be created. Give adequate time to students so that they can answer comfortably. Collect the activity back and save it in portfolio for future reference.
Accommodations for Differentiated Instruction
Remedial
Activities / · Provide additional time to student.
· Provide assistance while performing experiments.
· Group with students who are good using the instruments.
Challenge
Activities / · Find additional information related to the concept and share it with the class.
· Summarize the findings and present it before the class.
Materials and Resources Required For Unit

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Intel® Teach Program

Thinking with Technology Course

Printed Materials / · Trouble Shooting Help
· Help guide for teachers and students to use TI- Nspire
· Lab manuals
· Reference books based on concepts
Supplies / · TI-Nspire handheld
· pen or pencil
· blank sheet of paper
Internet Resources